UM10472 OL2381 Demo kit
Contents
1. Show bitnames A Show bit names Show bit names Show bit names I Show bit names Show bit names I Show bit names Show bit names 019aac425 3 2 3 1 LoPSTer control GUI The LoPSTer control GUI shown in Figure 11 enables the user to e Check connection between the GUI and hardware control board and RF board by clicking the Check now button This action displays the status message at the bottom of the window Load and store OL2381 configuration files using Store and Load buttons where Load writes configuration file values to the OL2381 registers Store saves the OL2381 register values as the configuration file Switch between eight different stored configurations Active register configuration UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 16 of 44 NXP Semiconductors UM10472 OL2381 Demo kit LoPSTer Control GUI Active register configuration Gi m C3 Contig M Communication with LoPSTer Use COM port comi r amp Check the communication with LoPSTer when opening the port Continuously monitor the communication with LoPSTer Active configuration Store Load All configurations Store Load2. EEN Local Oscillator Reference XTAL frequency 16 000 000 0 Hz C Force lock detector always on when changing reference frequency settings CI Skip VCO re calibration ible VCO Maw Keep LoPSTer settings update controls Keep control values update LoPSTer Carer Ae 2 Auto Detect Curent RF Channel C Check LO status automatically after a Receive command when changing the sigma delta output gain LO status The device is in idle mode Keep center frequency values update LoPSTer FC settings Keep LoPSTer FC settings update center frequency controls C RSTDIS pin is set to high Transmitter Transmit Command Transmit channel TX data sampling and PA control synchronized with TX clock CI Shut down the PA when SEN goes low C Transmit Manchester encoded data sampled with TX clock Transmit power and modulation control selection ACONG bd C Check device status automatically after each Transmit command C Check device status automatically after each PAM change TX status The device is in idle mode Check TX Status Receiver Receive Command Receive channel jo Sub command CONT x Gain switch use high gain settings I Send Command Command status There either was no command issued recently it is still ongoing or it completed successfully Check Signal Monitoring Status 019aac428 Fig 13 Configuration window for general settings UM10472 All infor
3. 019aac445 Fig 29 434 MHz FSK reception settings UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 37 of 44 NXP Semiconductors U M1 0472 UM10472 OL2381 Demo kit 5 3 868 MHz TX RX configuration file ASK Table 7 is an extract from Data sheet OL2381 for the 868 MHz TX RX ASK configuration file Table 7 Table extract for 868 MHz Symbol Parameter Conditions Min Typ Max Unit Srx receiver Manchester encoded data rate 4 8 kbit s 117 dBm sensitivity channel filter B 50 kHz All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 38 of 44 NXP Semiconductors UM10472 5 3 4 868 MHz transmission Center frequency 868 MHz OL2381 Demo kit Data rate 4 8 kbit s Manchester coded symbol rate 9600 chips s Modulation type ASK Modulation 100 see AMHO 31 and AML 0 Figure 30 is a compilation to enable all the relevant information to be visible on one page EE LoPSTer Config GUI File Help General Settings Digital 1 0 Port Control Operational Settings Local Oscillator and Clock Settings k his is the required setting for VCO ind high VIA v oPsTer version VIA VCO sub band 32 PLLICP 2 Sigma delta output
4. slicer selection edge sen v edge se Data and Clock ert slicer output Ci ss ly Manchester decoding Fig 27 315 MHz FSK reception settings Status and State Control Device Mode Ide w PD RESET Local Oscillator C Force lock detector always on Skip VCO re calibration alibrate Current RF uU Check LO status automatically after a Receive command LO status The device is in idle mode Check Statu Auto Detect Current RF Channel Transmitter Transmit Command Transmit channel v v TX data sampling and PA control synchronized with TX clock Shut down the PA when SEN goes low v Transmit Manchester encoded data sampled with TX clock Transmit power and modulation control selection ACONO vj Check device status automatically after each Transmit command CO Check device status automatically after each PAM change TX status The device is in idle mode Check TX Status Receiver Receive Command Receive channel o v Sub command DATA x Gain switch use high gain settings v p Command status There either was no command issued recently it is still ongoing or it completed successfully Check Signal Monitoring Status 019aac443 UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1
5. C Transfer user settings software only Write to device read from software Write to device verify once read from sw or hw Transfer device settings always read from hardware Ignore register control auto Flags j Data flow from to LoPSTer COM1 connected to LoPSTer on the demoboard Close GUI control window Fig 11 Help 019aac426 3 2 3 2 LoPSTer register control GUI The LoPSTer register control GUI shown in Figure 12 enables the user to Show complete register bits by name by clicking Show Bit names Enable or disable auto read and write OL2381 registers All information provided in this document is subject to legal disclaimers Read and write the OL2381 registers in real time by clicking Read and Write buttons Show each register with name address and content in hexadecimal and decimal Update registers with the parameter changes made in LoPSTer control GUI NXP B V 2011 All rights reserved Rev 1 14 December 2011 17 of 44 NXP Semiconductors UM10472 OL2381 Demo kit lii oPSTer Register Control p 0x0D 13 LOCON bier Showbitnames v 6 5 4 3 2 1 0 Hex Dec M Auto Auto sip fs we aa SKIP VCO CAL CLK2SCLK DELAY i ry OxOE 1 s TIMINGO oues Show bit names T 0 Hex Dec M Auto Auto aj jijalija loji sr sa pon Address OxOF T8 5 TIMINGI Register Show bit names T 2 1 0 Hex Dec Auto M Auto ajajojalijolijo iE I ES Addre
6. Use COM port BIZ E Transit Transmit Command Address 0x00 0 FCOL Register B 5 4 3 2 1 0 T ansmit channel TX data samplin Shut down the F Transmit Manch Modulation Control A Address 0x01 k FCOM AMHO O Modulation type 0 FSK Uaec 2 85 0 Hex AMH1 0 Modulation type 1 FSK 0 0 0 AML 0 Check device ste Address 0x02 2 FCOH Pam 0 ww This is the recommended F Check device ste Z 4 0 Hex TX status The des Address 0x03 kh FCILI pe 0 Hex Receiver Feceive Command Feceive channel 3 w Sub command PR DA 0 00 of chip Address 0x04 4 FCIM Register xoc Hex Gain switch ase low aai O Hz opi m Address 0x05 5 FC1H Register 0 Hex Fig 10 GUI windows Address 0x06 P FC2L jig Zz D Hex a JoJojo o o o Address 0x07 7 FC2M Register p Communication with LoPSTer coms v Check now ia Check the communication with Hex Dec V Auto V Auto sjeje s o a o o a woe tes Dec V Auto V Auto ISISETES oo Write Bead Dec V Auto V Auto siejelejeje a e io gt was ten Dec Auto V Auto s jo o o o o a o foo 0 _wite Be Dec Auto V Auto e s ojo o n o o im o sae nos Dec V Auto V Auto s ejajo a o o o la a swa se Dec Auto Auto a foo fo Write Bead
7. NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 14 of 44 NXP Semiconductors UM10472 OL2381 Demo kit i LoPSTer Control GUI Active register configuration e 1 ee Be Config Active configuration Store Load All configurations Store Load Data flow from to LoPSTer Transfer user settings sofl write to device read from f Write to device verify onc f Transfer device settings a r Ignore register control aul LoPSTer Control GUI Active register configuration fed ve 4 Config Active configuration Store Load All configurations Store Load Data flow from to LoPSTer Transfer user settings Write to device read fr Write to device verify Transfer device setting i LoPSTer Control GUI Active register configuration ei S C3 Config I Active configuration Store Load All configurations Store Load Data flow from to LoPSTer Communication with LoPSTer Use COM port com Y Check the communication LoPSTer when opening the Continuously monitor the communication with LoPSTe C Transfer user settings software only 1333 write to device read from software Write to device verify once read from sw or hw Transfer device settings always read From hardware Ignore register control auto Flags A f Ignore register control E COMI connected to LoPSTer
8. Output power and harmonics Reception measurement Sensitivity measurement Configuration files lsee 315 MHz TX RX configuration file FSK 315 MHz transmission 315 MHz reception 4 434 MHz TX RX configuration file FSK 434 MHz transmission 434 MHz reception 0 868 MHz TX RX configuration file ASK 868 MHz transmission 868 MHz reception 4 Improving RF performance Supply voltage noise n nannan nnana Legal information eee eens Definitions 0000 eee eee ee Disclaimers 000 020 cece eee eee 14 7 3 Trademarks 00 cee eee eee eee 43 8 ConteniS si ls rrr n wane awn 44 Please be aware that important notices concerning this document and the product s described herein have been included in section Legal information NXP B V 2011 All rights reserved For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com Date of release 14 December 2011 Document identifier UM10472
9. 019aac431 Fig 16 Configuration window for receiver gain All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 23 of 44 NXP Semiconductors UM10472 OL2381 Demo kit Transmitter Receiver re al search wake up slicer selection slicer threshold initialisation number of slicer g initialisation bits number of modulation gt gaps A Wake Up Search Wake up search mode pessimistic Ni unendlich Wake up search timeout C Wake up search timeout applies also to preamble detection Data and Clock C Invert slicer output C Apply Manchester decoding CO Set clock output to chip clock coding restriction Signal Monitoring wake up preamble data search detection ANIB EMESSE AE baudrate O o E ane Ea r1 modulation rj g o ig amplitude Measured RSSI level 0 oO DATA receive command only starts the receive clock after a PASS of the selected data reception signal monitors Baud rate observation length 8 s bits Total timing error threshold per 8 bits 0 78 w Single chip timing error threshold 125 Follow Up Actions
10. Contents OL2381 Demo kit 1 2 2 1 2 2 2 2 1 2 2 2 2 2 3 2 2 4 2 3 2 3 1 2 3 2 2 3 3 2 3 4 2 3 5 3 3 1 3 2 3 2 1 3 2 2 3 2 3 3 2 3 1 3 2 3 2 3 2 3 3 3 2 4 3 2 4 1 3 2 4 2 4 4 1 4 1 1 4 2 4 2 1 5 5 1 5 1 1 5 1 2 5 2 5 2 1 5 2 2 5 3 5 3 1 5 3 2 6 6 1 7 7 1 7 2 Introduction lssleessseese Hardware description Deliverables 0 0200 0 eee eeeee Control board description On board microcontroller OL2381 RF board interface Jumpers ocd ee ee ha SG ee P89LPC936 Pin configuration RF board description RF board schematic 22 RF board layout 20000055 Power supply distribution Test pilis o nba naue bak Geek piona i Pin description 20000e Demo kit Setup 2 00 e eee eee Hardware connections OL2381 Graphical User Interface GUI GUl installation 20 5 RS 232 port configuration check GUI windows description LoPSTer control GUI LoPSTer register control GUI LoPSTer Config GUI 20 GUI transmitter and receiver parameters Transmitter parameters Receiver parameters uu RF measurements using the demo kit Transmission measurement
11. 315 MHz 434 MHz and 868 MHz bands Click the Load button that appears in the OL2381 control GUI window To configure OL2381 for 868 MHz transmission select and load the file named Config 868Mhz FSK Irg see Figure 18 Zi LoPSTer Control GUI Active register configuration 1 2 C Config Communication with LoPSTer Use COM port COMS Check now Check the communication with t Load active LoPSTer configuration AE i6 Look in amp reference register setup P EE Es gatmp lt Ifa E w32 ILE Config 315Mhz FSK Irg My Recent j Config 434MHz FSK lrg Documents l config_868MHz_ASK Ira Active configurati Store All configurations Ei Wa Config_868Mh2_F5K lrg ur Config 868Mhz FSK no Manchester lrg Desktop P example Config 314 FSK Irg My Documents X8 DEPHBGGH11 NBB18 My Network File name Config 868Mhz FS Kg bd Places Files of type LoPSTer configuration Irg X j 019aac433 Fig 18 LoPSTer control GUI loading a configuration file The OL2381 register content is seen in the OL2381 register window The register can be read and written at anytime The OL2381 configuration file is set up for a 868 MHz Continuous Wave CW transmission i e an unmodulated carrier All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14
12. Frequency deviation for FSK Device mode is Transmit Activate button sends TX command Final status of transmission 4 1 1 Output power and harmonics The L type RF probe is connected between the RF board and spectrum analyzer to display the OL2381 output signal on the spectrum analyzer see Figure 20 Marker 1 points to the operating frequency whereas marker 2 and marker 3 indicate the harmonics UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 26 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit e RBW 300 kHz Marker 1 Ti VBW 100 kHz 10 16 dBm Att 20 dB SWT 235 ms T MERE REISEN 7 eemememmmyom c Center 3 5 GHz 700 MHz Span 7 GHz 019aac436 Fig 20 OL2381 spectrum analysis for 868 MHz transmission The TX clock and data can also be observed with the help of data and clock pins on the RF board Changes in output spectrum can be observed by changing the following TX parameters PAM setting RF frequency Datarate Modulation Coding Baudrate Typical current consumption of RF board 18 mA for an output power of 8 dBm UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 27 of 44 NXP Semiconductors
13. Send Command Command status There either was no command issued recently it is still ongoing ar it completed successfully Check Signal Monitoring Status 019aac447 UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 40 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 6 Improving RF performance 6 1 Supply voltage noise The control board of the demo kit board uses the Maxim MAX3221 IC to raise the RS 232 interface output signal voltage up to the required level To raise the output signal voltage an internal charge pump working at a frequency of approximately 100 kHz is used The 100 kHz frequency is detectable on the board supply voltage In the default configuration the control board supply voltage drives the OL2381 The noise on the supply causes interference on the RF output signal of the power amplifier The signal shown in Figure 32 is the OL2381 CW output spectrum in the range of 500 kHz e RBW 3 kHz Delta 2 T1 VBW 10 kHz 38 78 dB Ref 20 dBm Att 30 dB SWT 115 ms 94 000000000 kHz Marker 1 T1 8 18 dBm 10 sol o00000boo MHz Noise from supply Center 868 MHz 100 kHz Span 1 MHz 019aac448 Fig 32 CW output spectrum of OL2381 The interference
14. Set clock output to chip cloc C Set data output to deglitched 019aac440 File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help Fig 25 Receiver signals showing noise Trigger 500 psidiv Stop 500kS 100 MSis Edge Freq 9600 Hz Manchester is On Signal should show constant 1 or 0 Due to signal is below sensitivity only noise is shown Data and Clock E Invert slicer output Apply Manchester decoding E Set clock output to chip cloc C Set data output to deglitched 019aac441 UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 31 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 5 Configuration files UM10472 5 1 This section containsa brief description of OL2381 configuration files It covers both transmission and reception at frequencies of 315 MHz 434 MHz and 868 MHz The same configuration files are included in the software package supplied with the OL2381 demo kit The following three configuration files are discussed briefly together with GUI captures for TX and RX TX RX configuration file 315 MHz FSK transmission FSK reception e TX RX configuration file 434 MHz FSK transmission FSK reception TX RX configuration file 868 MHz FSK transmission FSK reception 315 MHz TX RX configuration fil
15. U M1 0472 OL2381 Demo kit 4 2 Reception measurement This section provides an example explaining how to perform reception measurements In this example the 868 MHz configuration is used but the same procedure applies to other configuration files The software package included in the demo kit contains OL2381 reception files for 315 MHz 434 MHz and 868 MHz bands To configure the OL2381 for 868 MHz reception click the Load button in the OL2381 control GUI window select the Config 868Mhz FSK Irg file and then open it see Figure 21 Zi LoPSTer Control GUI Active register configuration 1 r 212 cs C4 cs C 6 C8 Config Active configuration Communication with LoPSTer Use COM port cows X Checknow Load active LoPSTer configuration PIR Look in E reference register setup amp es EB We g3tmp O LE Config 315Mhz FSk lrg My Recent j Config 434MHz FSk lrg Documents l config_868MHz_ASK Irg Desktop Il example Canfig 314 FSk lra r My Documents B DEPHBGGH11 NBB18 T S My Network File name Config 858Mhz FSK Irg Places Files of type LoPSTer configuration Irg X j Cancel 019aac437 Fig 21 Loading the 868 MHz configuration file The receiver is activated by clicking the Send command button in the receive command section of OL2381 Config GUI as shown in Figure 22 UM10472 All information provided i
16. UM10472 3 2 3 GUI windows description OL2381 Demo kit During start up of OL2381 the GUI shows three different windows see Figure 10 entitled LoPSTer Control GUI e LoPSTer Register Control LoPSTer Config GUI These three windows are discussed in the following sections EE LoPSTer Config GUI File Help Operational Settings CO band PLLICP Sigma delta output gain RF frequency resolution RF Zenter Frequencies Channel 0 Chip iate C Transmitter Receiver Invert transmitted data AM Cr Otf ramp duration FM FSK frequency devialion FSK modulation index General Settings Digtall O Port Control Loca Uscillator and Llock Settings high VIALS LoPsTer VCO sub band 0 LO divider 512 000 244 H2 Channel2 Channel 1 512 000244 Hz Channel3 512 62 500 chips s ASK uudulation depts Relative ramp duration L Slew rats sunendi steps us i Staus and State Contiol PD RESET Rean A Si LoPSTer Control GUI Device Mode Ide v Local Oscillator Force lock detec This is the Active register configuration r Skip vco recat c 1 c2 c PI FE Curent RF Config i Check LO status LO status The dex Active configuration Load All configurations
17. is visible at a distance from the carrier of n 94 kHz with n 4 3 2 1 1 2 3 and 4 To avoid interference and to make precise measurements it is recommended that a separate source supplies OL2381 To provide a separate supply open jumper J4 on the control board and connect a power supply to pins VCC and GND on the OL2381 RF board The adapted supply connections for OL2381 are illustrated in Figure 33 UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 41 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit VCC Lop vec 42 8 V for 3V fo J4 r gpen Controller RF Board 019aac449 Fig 33 Changed supply connections for OL2381 Take care to avoid the supply from the ports being reversed when the OL2381 RF board is supplied by a source other than the control board For this purpose VCC_Lop must be greater or equal to VCC In order to achieve the correct port input signal VCC must be at least 0 8 VCC_Lop For example if VCC of the control board is set to 2 5 V the supply voltage of OL2381 VCC_Lop must be between 2 5 V and 3 125 V Figure 34 depicts the CW output signal when OL2381 is supplied by an external source e RBW 3 kHz Delta 2 Tl j VBW 10 kHz 55 35 dB Ref 20 dBm Att 30 dB SWT 115 ms 94 000000000 kHz Marker i T1 8 15 dBm l l Cen
18. on the demoboard Close Dm COMI cannot communicate with LoPSTer E i COMI cannot communicate with demo board Close Help L Close Help ort 4 019aac424 Fig 9 Communication status shown on Control GUI e COMXx connected to LoPSTer on Demoboard reflects communication is made The GUI can communicate with the control board and with OL2381 RF board Failure to communicate with the GUI could be due to problems with either the control board or the RF board The following cases provide quick checks to resolve potential problems Cannot communicate with demo board reflects a control board failure Quick check RS 232 port configuration selection Jumper settings for power supply Knob set to RUN position If all above PASS although unlikely it is possible that one of the devices has failed If so request a new board Cannot communicate with LoPster reflects RF board failure Quick check Power supply check pins VCC and Vreg SPI Check probe SPI pins write and read registers SEN works accordingly Orystal check for reference frequency i e 16 MHz for OL2381 Check current consumption for TX PA off TX PA on and RX RF switch set to in line for TX and RX configuration UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 15 of 44 NXP Semiconductors
19. to observe some signals from the OL2381 as shown in Table 3 Each jumper is described in Table 1 CAI CONTROL BOARD U2 NXP ERN loof 9 Ll J 3 G 5 GE wT 29 p p t 2 gt 3 sec oQ eni Ls 00 LI RF 7 N N Intar Gace O Q U 3 019aac418 Fig 3 Control board jumper settings default in RED Table 1 List of jumpers and connectors Designation Description JP1 Selects the control board input voltage when using an external input voltage 2 5 V 3 0 V 3 6 V Default center position 3 0 V JP2 Selects the supply for the control board Connecting the two pins on the right selects the external input voltage as the control board power supply Connecting the two pins on the left selects the battery as the control board power supply Default open JP3 Enables a probe to be connected to the red LED voltage input JP4 Connects VCC_LOP and VCC to supply the RF board Default connected JP5 Connecting the two pins at the bottom takes the SPI output data from the SDIO pin Connecting the two pins on the top takes the output data from the SDO pin Default SDIO JP6 Enables a probe to be connected to the green LED voltage input BUZZER Enables a probe to be connected to the BUZZER voltage input RS232 RS 232 interface connector Enables the microcontroller to be programmed and the hyper terminal interface to be used UM10472 All information provided in this document is subj
20. 14 December 2011 34 of 44 NXP Semiconductors U M1 0472 UM10472 OL2381 Demo kit 5 2 434 MHz TX RX configuration file FSK Table 6 is an extract from Data sheet OL2381 for the 434 MHz TX RX FSK configuration file Table 6 Table extract Symbol Parameter Conditions Min Typ Max Unit Srx receiver Manchester encoded data rate 9 6 kbit s 106 109 dBm sensitivity deviation 15 kHz channel filter B 75 kHz All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 35 of 44 NXP Semiconductors UM10472 5 2 1 434 MHz transmission Center frequency 434 MHz OL2381 Demo kit Data rate 9 6 kbit s Manchester coded symbol rate 19200 chips s Modulation type FSK Frequency deviation 15 kHz Ele Help General Settings Digital 1 0 Port Control Operational Settings Status and State Control Local Oscillator and Clock Setting Terep is is the required setting for VCO bad high VIA LAPSTer version VIA VCO sub band 32 PLLICP 2 Sigma delta output gain x1 normal LO divide RF frequency resolution RF Center Frequencies ChannelQ 434 000 122 Hz Channel2 256 996 216 Hz Channel 511 000 122 Hz Channel3 511 003 784 Hz Chip rate C 19 203 chipsZ Transmitter Receiver Device Mode Transmt v C PD RESET Lo
21. 2 or 3 Configure the transmit command for PA control Enable or disable Manchester coding for TX Data Select either ACONO or ACON1 for output power and modulation selection Enable or disable PA by clicking Activate or Deactivate buttons 3 2 4 2 Receiver parameters The receiver parameters shown by 5 in Figure 16 and Figure 17 are discussed briefly in this section Gain Settings defines the front end gain LNA and IF filter where high gain shown in Figure 16 is the recommended setting Channel Filter defines demodulation type ASK or FSK applied on receive signal and channel filter bandwidth Baseband Filter defines the BBF corner frequency the corner frequency must keep close to the expected data rate Slicer and Coding defines the data slicer settings Implementation of edge or level slicer Recommendation level slicer for ASK and edge slicer for FSK modulated signal Recommendation edge slicer initial value as 70 frequency deviation Recommendation enable auto Initialization for edge Slicer Receive Command on right side allows the user to Select different receive subcommand i e CONT WUPS PRDA or DATA Select desire Receiver Channel i e Channel 0 1 2 or 3 Select LNA gain control in Gain Switch option Enable user send receive command by clicking Send Command button All information provided in this document is subject to legal disclaimers NXP B V 2011 All rig
22. 44 Hz V Channel 1 512000 244 Hz Channel3 512000244 Hz Chip rate i 62 500 chips s 4 Transmitter Receiver Status and State Control Device Mode Transmit v CI PD 7 RESET Local Oscillator C Force lock detector always on C Skip VCO te calibration Calibrate VCO Now Auto Detect Current RF Channel C Check LO status automatically after a Receive command LO status After the last VCO calibration the PLL was locked Check LO Status Current RF 3 Transmitter Transmit Command Transmit channel lo Al C TX data sampling and PA control synchronized with TX clock Modulation Control AMHO Modulation type 0 Fsk Ww AMH1 o Modulation type 1 FSK M AML 0 PAM 0 2 This ie th recommended PAM setting o invaltlbanerdtiad data AM ASK modulation depth 0 00 Relative ramp duration 0 00 of chip On Off ramp duration 0 00 of chip Slew rate sunendii steps ps FM FSK frequency deviation e o Hz FSK modulation index 0 Relative ramp duration a ofchip BT sunen Slew rate unendii Hz us Illustrate Timing Transmit clock 62 500 Hz Fig 15 Configuration window for transmitter settings CO Shut down the PA when SEN goes low Transmit Manchester encoded data sampled with TX clock Transmit power and modulation control selection ACONO wi C Check device status automatically after each Transmit c
23. ACONO v High gain 255dB w 27 dB 525 iil 5 Activate Deactivate Low gain 4 dB g 208 m dB Aatvate Deactivate E a Check device status automatically after each Transmit command w Check device status automatically after each PAM change TX status The device is not in transmit mode Chiprate 19 203 chips s Demodulator selection FM v Channel fiter bandwidth setting 4 75 kHz x RSS Settings Check TX Status RSSI low pass filter comer frequency 1 39 789kH2 w Receive Command RSSI correction in low gain mode II Receive channel o Y High to low gain switching threshold Upper RSSI Threshold l a Lower RSSI Threshold 0 Gain switch use high gain settings x Baseband Filter 4 Send Command I UM10472 Baseband filter comer frequency setting 3 14 204 kHz Degiicher output lock duration 3 18 chip duration Baseband settling delay e chip duration Edge slicer modulation amplitude threshold j 14 652 Hz Upper modulation amplitude limit m Hz Lower modulation amplitude limit L id Hz Level slicer initial threshold 307 692 307 Hz wake up preamble data Command status There either was no command issued recently itis still ongoing or it completed successfully C Check Signal Monitoring Status T E 019aac438 Fig 22 LoPSTer Configura
24. Connect control board and RF board with 20 pin flat cable connector Connect RF board and RF analyzer or RF generator with coax antenna cable Power supply Connect 3 V as shown in Figure 7 An overview of all connections is provided in Figure 7 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 12 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit control board LED are on cable to power supply if supplied RF board for both boards OL2381 RF board data signals 500 antenna cable L type Rf probe cable to E control board antenna ctors GmbH data signals if connected then the PCB antenna is switched 019aac422 Fig 7 Control board and RF board connections UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 13 of 44 NXP Semiconductors U M1 0472 UM10472 OL2381 Demo kit 3 2 OL2381 Graphical User Interface GUI The OL2381 demo kit includes Graphical User Interface GUI which enables easy real time user access to the OL2381 registers for desired settings The user can set several transmitter and receiver parameters such as operating frequency data rate data coding and decoding modulation setting baseband and channel filter s
25. December 2011 25 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit A CW transmission can be set when frequency deviation register Fdev in FSK is 0 and the transmitter parameters appear in the transmitter section of OL2381 Config GUI window ESI LoPSTer Config GUI File Help a General Settings Digital 1 0 Port Control Operational Settings Status and State Control Local Oscillator and Clock Settings Device Mode fiera Y PD CJ RESET ReadRegiters This is the required setting for VCO band high VIA 4 oPSTer version VIA Local Oscillator VCO sub band 22 Force lock detector always on Skip VCO re calibration Calibrate VCO Now PLLICP EZ S Sigma delta output gain x1 normal Current RF oo Auto Detect Current RF Channel LO divider 2 f gt 512MH v Z Check LO status automatically after a Receive command RF frequency resolution 488 28 Hz LO status Alter the last VCO calibration the PLL was locked RF Center Frequencies m Channel O K668 000 244 HzDChannel2 513 992432 Hz C Check LO Status Channel 1 1 022 000 24 Hz Channel3 1 022 007 56 Hz Transmitter Transmit Command Chip rate 19203 chips s TTL Transmitter Receiver v TX data sampling and PA control synchronized with TX clock Modulation Control hut down the PA when SEN goes low VY P EE ansmit Manchester encoded data sampled with TX clock AMHO 31 Modul
26. Manchester decoding Set clock output to chip clock C Set data output to deglitched 019aac439 Fig 23 Receiver signals without Manchester decoding 4 2 1 Sensitivity measurement The receiver is set to Manchester decoding for sensitivity measurements As a result the data output shows either constant 0 or constant 1 see Figure 24 and the clock signal is divided by two The signal power from the signal generator can now be gradually reduced until noise replaces the data shown on the oscilloscope see Figure 25 This inserted power is the minimum power the OL2381 receiver can receive and it represents the sensitivity of the receiver The exact RF frequency of the RF generator is important and it may be necessary to fine tune it All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 30 of 44 NXP Semiconductors UM10472 OL2381 Demo kit File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help l Will i i ot n n Measure lue 2 00 Vidiv 1 200 V ofst Fig 24 Receiver signals with Manchester decoding iv Normal FLT DC1M 6 Timebase 40uUssTrigger SIM 2 00 Vidi 500 p 00 500 kS b Freq 9600 Hz Data is constant 1 or constant 0 due to received decoded Manchester signal Data and Clock Ll Invert slicer output Apply Manchester decoding ET
27. UM10472 OL2381 Demo kit Rev 1 14 December 2011 User manual Document information Info Content Keywords OL2381 User manual GUI Abstract This user manual describes the architecture and functionalities of the OL2381 Demo kit including the use of the Graphical User Interface GUI NXP Semiconductors U M1 0472 OL2381 Demo kit Revision history Rev Date Description v 1 20111214 initial version Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 2 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 1 Introduction UM10472 This user manual describes the architecture and functionalities of the OL2381 demo kit The user manual also describes the hardware included in OL2381 demo kit and step by step setup of the OL2381 in both the transmit and receive mode It demonstrates the OL2381 IC performance in an application like environment It is based on two boards a Control Board and an OL2381 RF board shown in Figure 1 The Control Board contains an NXP P89LPC936 microcontroller and features Auser interface comprising 4 DIP switches 4 tactile switches 2 LEDs and 1 buzzer Two possibilities for power supply of the Cont
28. aie eo C Set data output to deglitched slicer result preamble detection 7 0 enter STOP mod v success atter failure Command 0 enter STOP mod s Preamble Settinas Preamble length 32 chips Preamble definition 0 1 M ark S pace Ssssssssssssssss Polling Timer C Enable polling timer Wakeup counter resolution 1ms oy Wakup time 11 0 ms Timer Event Action Operating mode power down i Receive channel 0 v Sub command WUP ov a Gain switch keep gain as is Fig 17 Configuration window for receiver settings 019aac432 a Kil UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 24 of 44 NXP Semiconductors UM10472 4 RF measurements using the demo kit OL2381 Demo kit UM10472 4 1 This section describes how to measure certain OL2381 RF parameters such as RF transmission power receiver sensitivity using a single demo kit set Transmission measurement This section describes how to perform a transmission measurement It uses the 868 MHz configuration but measurements at other frequencies can be done in a similar way The software package included in the demo kit contains OL2381 transmission configuration files for
29. and State Control Device Mode Ide w PD RESET Local Oscillator C Force lock detector always on CI Skip VCO re calibration Bairavi Neu Current RF aj Auto Detect Current RF Channel C Check LO status automatically after a Receive command LO status The device is in idle made Transmitter Transmit Command Transmit channel 0 wi v TX data sampling and PA control synchronized with TX clock Gain Settings _ Combined w 7d ws Channel Filter Demodulator selection An a Channel filter bandwidth setting mes ED Baseband Filter Baseband filter comer frequency settirg 4 7 0795 kHz x Slicer and Coding wakeup preamble data seach detection reception level sen level se slicer selection Data and Clock wert slicer output ply Manchester decoding slicer threshold automati automatic intial aquisitio sv initialisation i j Fig 31 868 MHz ASK reception settings C Shut down the PA when SEN goes low v Transmit Manchester encoded data sampled with TX clock Transmit power and modulation control selection ACOND v Check device status automatically after each Transmit command C Check device status automatically after each PAM change TX status The device is in idle mode Check TX Status Receiver Receive Command Receive channel Sub command DATA x 4 Gain switch use high gain settings vi
30. ation type 0 t 5 i a I smit power and mgglulation control selection ACONO w AMH1 31 Modulation type 1 F al CL Activate TX Deactivate AML 0j aes PAM 0 Thisis the recommended PAM setting Transmit channel ja sw v Check device status automatically after each Transmit command v Check device status automatically after each PAM change Invert transmitted data TX status Transmitting AM Pues 3 ASK modulation depth 1 00 TREE Relative ramp duration 7 44 of chip Receiver Receive Command On Off ramp duration 7 44 of chip Slew rate 8 000 steps us Receive channel 0 is Sub command CONT FSK frequency deviation Gain switch keep gain as is EO FSK modulation index 0 Sanaa Relative ramp duration 0 0 of chip BT unen still ongoing ot it completed successfully Check Signal Monitoring Status Slow tate 1201 Ki liz us po status There either was no command issued recently it is Timing TX synchronization clock source chiprate w Transmit chip rate 19 203 chips s Transmit clock 19 203 He 019aac435 Fig 19 LoPSTer control GUI loading a configuration file There are a number of important data captures shown in Figure 19 that have been circled in red These data captures are for OL2381 transmission and represent the following Channel frequency set to 868 MHz Modulation type is FSK
31. cal Oscillator C Force lock detector always on C Skip VCO re calibration Calibrate VCO Now Current RF ol Auto Detect Current RF Channel C Check LO status automatically after a Receive command LO status After the last LO startup the PLL was locked Check LO Status Transmitter Transmit Command Transmit channel ov TX data sampling and PA control synchronized with TX clock EZ Modulation Control AMHO 31 Moision Ke0 EK EO AMH1 31 Modulation type i FSK _v AML 0 PAM p v This is the recommended PAM setting C Invert transmitted data AM ASK modulation depth 1 00 Relative ramp duration 00 of chip On Off ramp duration D 00 of chip Slew rate Infinity steps ps FM FSK frequency deviation FSK modulation index 1 6 Relative ramp duration 29 8 of chip BT 2 75 Slewrate 1 953 1 Hz ps Illustrate Timing TX synchronization clock soureg chip rate v Transmit chip rate 19 203 chigs s Transmit cloc 9 602 Ki Fig 28 315 MHz FSK transmission settings FT Shut down the PA when SEN goes low Cb Manchester encoded data sampled with TX clock ransmit power and modulation control selection ACONO w me aiae Decra Check device status automatically after each Transmit command O Check device status automatically after each PAM change TX status Transmitting C
32. ching tree thokd 0 Upper ASSI Tivesald 0 Lower FISSI Tresshald Bavebard Hee Basnband flies onnee frequency setting U T1645kHz vw Deghcher ougat lock duration A chip duration Baseband aewting delay 2 l chip dolo Siom ma Coding Edga sser mockdatien amplitude treshe 15450 Hr Upper mechdetion situn imi Dlhe Lower modulation amplitude irit olhe Level kcer intial thvethald 100 090 000 Hz Status and Stato Corral Device Mode Recewe w C PD C RESET eod feciters Local Oseliir 7 Force luck detector abays on 7 Si VEU recatar Coibrate VED He Pide Ueleci Caient RF Ovsrrel C Check LO status actermilicaliy aller a Recreve command LO statue Alter iha Lint VON cierto the PLL vane Ines Cheech LO Staus Cimer RF 7 Tranamene Trani Command Tuoname channel ty 7 TX dala satrplrng arid PA contd eynchiunased vath TX cioch Shut down the PA when SEN goet low E Traeemi Manchester ericnided data sivapied with TX clack Tiartsirk power and modulation contol seksdir ACONO w Autevate Deactivate O Pheek devien statue automatically alies aach Tint command C Omk device tals eudumalicaly aller each PAM change TX thui The device it nit i wanmi mode Check TX Ste Fircewes Receive Command Recmve charel 0 Sih command DONT v Gan switch use high gan velles Command sur Thre her was ro command sued reci aa t engang cor compieled sucrrsih y Dreck Signal Montong Stans
33. chronization clock sourci chip rate E 8 602 chips s 019aac442 Fig 26 315 MHz FSK transmission settings UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 33 of 44 NXP Semiconductors UM10472 5 1 2 315 MHz reception Center frequency 315 MHz OL2381 Demo kit Data rate 4 8 kbit s Manchester coded symbol rate 9600 chips s Modulation type FSK Frequency deviation 4 8 kHz e OL2381 performed Manchester decoding Figure 27 is a compilation to enable all the relevant information to be visible on one page EE LoPSTer Config GUI Ele Help General Settings Digital 1 0 Port Control Operational Settings Local Oscillator and Clock Settings is setting is not appropriate oPSTer version V1A PLLICP Sigma delta output gain x1 normal se RF frequency resolution 244 14 Hz RF Center Frequencies Channel 314 996 216 Hz Whannel2 297 316 528 Hz Channel1 272281 372 Hz Channel3 264 031 372 Hz Chip rate q 9 602 Transmitter Gain Settings Combined 92 5 dB Channel filter bandwidth setting 5 50 kHz Baseband Filter Baseband filter comer frequency settin 4 7 0785 kHz v Sa Slicer and Coding Edge slicer modulation amplitude threshold Ces gt wake up preamble search detection
34. e FSK Table 5 is an extract from Data sheet OL2381 for the 315 MHz TX RX FSK configuration file Table 5 Table extract Symbol Parameter Conditions Min Typ Max Unit SRX receiver Manchester encoded data rate 2 4 kbit s 109 112 dBm sensitivity deviation 2 4 kHz channel filter B 50 kHz All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 32 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 5 1 1 315 MHz transmission Center frequency 315 MHz Data rate 4 8 kbit s Manchester coded symbol rate 9600 chips s Modulation type FSK Frequency deviation 4 8 kHz Figure 26 is a compilation to enable all the relevant information to be visible on one page EE LoPSTer Config GUI File Help General Settings Digital 1 0 Port Control Operational Settings Status and State Control Local Oscillator and Clock Settings Device Mode Transmit PD RESET Read Registers low V1B is setting is not appropriate VCO bai LoPSTer version V1A Local Oscillator VCO sub band 38 CO Force lock detector always on P LICP 2 C Skip VCO re calibration Calibrate VCO Now Sigma delta output gain Current RF o Auto Detect Current RF Channel C Check LO status automatically after a Receive command 5 Erma LO status After the last VCO calibration the PLL was locked RF frequency resol
35. ect to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 5 of 44 NXP Semiconductors UM10472 2 2 4 P89LPC936 Pin configuration Table 2 provides an overview of the pin assignment of the microcontroller P89LPC936 Table 2 P89LPC936 pin assignment OL2381 Demo kit Pin reference P0 0 PO 1 P0 2 P0 3 P0 4 P0 5 P0 6 P0 7 P1 0 P1 1 P1 2 P1 3 P1 4 P1 5 P1 6 P1 7 P2 0 P2 1 P2 2 P2 3 P2 4 P2 5 P3 0 P3 1 Vss Vpop Configuration input only high impedance input only high impedance input only high impedance input only input only high impedance input only high impedance high impedance input only high impedance input only high impedance quasi bidirectional quasi bidirectional open drain open drain input only high impedance quasi bidirectional quasi bidirectional quasi bidirectional push pull input only OR Push pull input only high impedance push pull input only OR push pull push pull push pull Description DIP switch S1 DIP switch S2 DIP switch S3 DIP switch S4 tactile switch SW4 tactile switch SW5 tactile switch SW6 tactile switch SW7 RS 232 output TXD RS 232 input RXD serial clock EEPROM serial clock EEPROM interface with OL2381 P11 INT TEST5 RESET configurable input output P TXD LOP configurable input output P TXA LOP configurable input output P RXA LOP g
36. eliance up to the greater of the amount actually paid by customer for the product or five dollars US 5 00 The foregoing limitations exclusions and disclaimers shall apply to the maximum extent permitted by applicable law even if any remedy fails of its essential purpose Safety of high voltage evaluation products The non insulated high voltages that are present when operating this product constitute a risk of electric shock personal injury death and or ignition of fire This product is intended for evaluation purposes only It shall be operated in a designated test area by personnel that is qualified according to local requirements and labor laws to work with non insulated mains voltages and high voltage circuits The product does not comply with IEC 60950 based national or regional safety standards NXP Semiconductors does not accept any liability for damages incurred due to inappropriate use of this product or related to non insulated high voltages Any use of this product is at customer s own risk and liability The customer shall fully indemnify and hold harmless NXP Semiconductors from any liability damages and claims resulting from the use of the product 7 3 Trademarks Notice All referenced brands product names service names and trademarks are the property of their respective owners NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 43 of 44 NXP Semiconductors UM10472 8
37. ency 315 MHz 434 MHz or 868 MHz A20 wire flat cable for connection between boards An L type RF probe with locking function from Murata Control board description On board microcontroller The serial flash In System Programming ISP feature of the P89LPC936 microcontroller allows coding while the device is connected with a computer via an RS 232 interface OL2381 RF board interface The minimum connection between the microcontroller and OL2381 RF Board comprises SPI lines SDIO SCLK and SEN The full four line SPI mode can be configured using jumper JP5 In this case line SDIO serves as data input and line P13 SDO as data output The SPI lines can be configured for shared transmit receive data and clock together with SPI communication Alternatively the device can also be configured for separate SPI lines and transmit receive data P10 Data and Clock P12 Clock Figure 2 presents the signal of the RF interface on the control board P RXA LOP P TXA LOP P TXD LOP CLOCK yC INT uC DATA uC SDO SCLK SDIO SEN 4 2 3 4 5 6 7 8 9 eo 019aac417 Fig 2 RF Interface of the control board All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 4 of 44 NXP Semiconductors UM10472 2 2 3 Jumpers OL2381 Demo kit Several Jumpers are present on the control board to configure it and
38. ettings transmit and receive command settings together with enable or disable transmit and or receive operation 3 2 1 GUI installation Install the OL2381 GUI as follows 1 Copy the whole folder named OL2381 SW Graphical User Interface GUI to a desired location on a local PC 2 Copy the contents of the folder Assemblies WinSxS into the windir WinSxS folder 3 Select Yes when asked whether to overwrite the Manifests folder and select No for all other overwrite questions 4 In the folder LoPSTerConfig click the file name LoPSTerConfig exe see Figure 8 and the OL2381 GUI with all three windows opens D 10L2381 SW Graphical User Interface GUIM oPSTerConfig 1 0 220 0WoPSTerConf File Edit view Favorites Tools Help Back J d x Search lie Folders E O s M OL2381 SW Graphical User Interface amp C3 LoPSTerConfig 1 0 220 0 LoPSTerCon LoPSTerCon LoPSTerGLl LoPSTerGLUIL ini E C3 Assemblies e LoPSTerConfig D reference register setup v gt 7 objects Disk free space 11 2 GB 019aac423 Fig 8 GUI start up 3 2 2 RS 232 port configuration check The GUI connection status with the control board and OL2381 RF board can check by clicking Check now button in OL2381 control window The status message for connection is displayed as shown in Figure 9 All information provided in this document is subject to legal disclaimers
39. for improved high frequency rejection and to ensure stability Test pins The RF board contains several test pins for important signals as described in Table 3 and shown in Figure 6 Table 3 P89LPC936 pin assignment Test pins Description SPI SDO SCLK SDIO SEN SPI communication pins enabling communication between the microcontroller on control board and OL2381 on RF Board These pins can also be used to connect the RF board with another control board P10 DATA P11 INT Enables a probe to be connected to the three outputs P10 DATA P12 CLOCK P11 INT P12 CLOCK of OL2381 Allows internal digital signals to be measured TEST1 TEST2 Allows internal analog signals of OL2381 to be measured VCC Positive power supply for OL2381 and RF switch UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 9 of 44 NXP Semiconductors UM10472 UM10472 OL2381 Demo kit 5 2 9 4 019aac421 Fig 6 OL2381 RF board test pins 2 3 5 Pin description Table 4 OL2381 pin description Symbol Pin GND 1 VREG VCO 2 VCC IF 3 TEST1 4 TEST2 5 VCC_RF 6 RF_IN 7 GND 8 GND 9 RF_OUT 10 VREG_PA 11 VCC_PA 12 VREG_DIG 13 VCC_DIG 14 P14 PIND 15 GND 16 SEN 17 SDIO 18 SCLK 19 P10 DATA TEST4 20 PI1 INT TEST5 21 P12 CLOCK 22 Description ground VCO regulator output voltage IF powe
40. gain x1 normal se LO divid RF frequency resolution 488 28 Hz 512 000 244 Channel 1 i 44 512 000 244 Chip rate C 9 602 chips s Transmitter Receiver Modulation typ Modulation type 1 ASK v This is the recommended PAM setting CO Invert transmitted data AM ASK modulation depth 1 0 Relative ramp duration 22 32 X of chip On Off ramp duration 22 32 of chip Slew rate 1 333 steps ps FM FSK frequency deviation 0 FSK modulation index 0 0 Relative ramp duration ofchip BT Infinity Slew rate Hz ps Illustrate Timing TX synchronization clock source chip rate w 3 602 Transmit clock 480i Fig 30 868 MHz ASK transmission settings Status and State Control Device Mode Transmit v C PD 7 RESET Local Oscillator Force lock detector always on C Skip VCO re calibration Calibrate VCO Now Current RF o Auto Detect Current RF Channel J Check LO status automatically after a Receive command LO status After the last LO startup the PLL was locked Check LO Status Transmitter Transmit Command Transmit channel ov TX data sampling and PA control synchronized with T clock hut down the P when SEN goes low ransmit Manchester encoded data sampled with TX clock Transmit power and modulation control selection ACONO w me Hse Tas Check device sta
41. heck TX Status Receiver Receive Command Receive channel 0 v Sub command DATA w Gain switch use high gain settings v Send Command Command status There either was no command issued recently it is still ongoing or it completed successfully Check Signal Monitoring Status 019aac444 UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 36 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 5 2 2 434 MHz reception Center frequency 434 MHz Data rate 9 6 kbit s Manchester coded symbol rate 9600 chips s Modulation type FSK Frequency deviation 15 kHz Channel filter bandwidth 75 kHz e OL2381 performed Manchester decoding Figure 29 is a compilation to enable all the relevant information to be visible on one page EE LoPSTer Config GUI Ele Help General Settings Digital 1 0 Port Control Operational Settings Status and State Control Local Oscillator and Clock Settings Device Mode Receive v PD RESET ReadRegisters EPOR is is the required setting for VCO bed high VIA V A Ter veran VIA a Local Oscillator VCO sub band 22 Force lock detector always on PLLICP 2 C Skip VCO re calibration Calibrate VCO Now Sigma delta output gain 1 normal sv Current RF o Auto Detect Current RF Channel LO divide tts 512MH VD C Check LO stat
42. hts reserved User manual Rev 1 14 December 2011 22 of 44 NXP Semiconductors UM10472 UM10472 OL2381 Demo kit The appropriate settings for signal monitor wake up preambles polling timer together with data and clock sections are scrolled down sections as shown in Figure 17 Examples of the types of data shown are Manchester decoding enable disable in data and clock section preambles definition in preamble settings several signal monitors that can be enabled or disabled in the signal monitoring section Any change performed in the LoPSTer config GUI is reflected in the corresponding registers in the LoPSTer register GUI Only for Initial start up For specific applications the user performs final optimization pe de Gerrnal Selir Dylai l U Post Control Operational Semings Lneni Nerden and Ficek Sengr vent sie iene VOU subbamd U PULP n Sigmsdeta output gan vd remu ve LU dvds lt 2It gt 52MM e HFMequeneyreschnn 488 28 Hz RF Denies Firspuenew Channel BERDDD 244 Hz Channel 512 000264 He Channel 512000244 Hz Channel 512 DIL 244 He Che ule BZS chu Troumites Reeve Gan Settinat FiortendiN amp FChannelFher Combined Highgin ba zr fa s Low grin 4 oe gt 2d xe E Chames Hier Demodulsior selection FM we Channel ber bardwdh seller O XOW RSSI Seir RSS low pass iles ermer hooey U78577 KHz we RSS comection low ganmode 0 High fo low gan snat
43. ior authorization from competent authorities Evaluation products This product is provided on an as is and with all faults basis for evaluation purposes only NXP Semiconductors its affiliates and their suppliers expressly disclaim all warranties whether express implied or statutory including but not limited to the implied warranties of non infringement merchantability and fitness for a particular purpose The entire risk as to the quality or arising out of the use or performance of this product remains with customer In no event shall NXP Semiconductors its affiliates or their suppliers be liable to customer for any special indirect consequential punitive or incidental damages including without limitation damages for loss of business business interruption loss of use loss of data or information and the like arising out the use of or inability to use the product whether or not based on tort including negligence strict liability breach of contract breach of warranty or any other theory even if advised of the possibility of such damages Notwithstanding any damages that customer might incur for any reason whatsoever including without limitation all damages referenced above and all direct or general damages the entire liability of NXP Semiconductors its affiliates and their suppliers and customer s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable r
44. mation provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 19 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit Digital I O port control see 2 in Figure 14 allows the user to Control port connection Configure either 3 wire or 4 wire SPI communication Configure SPI or separate pins P10 DATA P12 CLOCK for TX RX data and clock Scroll different options for pins Data Clock and INT i e TX RX chip bit clock on P12 Clock LO RDY RX RDY PA ON status on P11 INT Configure P13 SDO and P14 PIND E LoPSTer Config GUI Be Hep General Settings Digital 1 0 Port Control Operational Settings Status and State Control stasis SPI Wiring configuration SEP SDO Device Mode de w PD RESET 4 wire SPI SDID is the input SDO is the output Local Oscillator 3 wire SPI SDIO is the multiplexed input and output C Force lock detector always on TX clock and data routing SEP TX LINES CI Skip VCO re calibration Tiii Ate Data input is SDIO clock output is SCLK Data input is P10 DATA clock can be output at PIZ CLOCK Carent RF 2 Auto Detect Current RF Channel AX clock and data routing SEP_RX_OUT C Check LO status automatically after a Receive command Data output is SDIO clock output is SCLK LO status The device is in idle mode Data output is P1O DATA clock can be output at P12 CLOCK SCLK clock
45. n this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 28 of 44 UM10472 OL2381 Demo kit NXP Semiconductors C9 LoPSTer Contig GUI File Hel General Settings Digital 1 0 Port Control Operational Settings Local Oscillator and Clock Settings Status and State Control Device Mode Geceive 3 C PD RESET ReadRegisters y Thisis the requied setting for VCO band high VIA Y LoPSTer version VIA Local Oscillator VCO sub band 22 Force lock detector always on PLLICP 2 L Skip VCO re calibration Calibrate VCO Now Sioma delta output gain 1 normal Current RF oj Auto Detect Current RF Channel LO divider 2 f 512 MH v Check LO status automatically after a Receive command Ys LO status After the last VCD calibration the PLL was lacked RF frequency resolution 488 28 Hz RF Center Frequencies Channel 0 868 000 244 TI Channel2 512 000 244 Hz Check LO Status Channel 512000244 Hz Channel3 512 000 244 Hz Transmitter Transmit Command Transmit channel o ow 29 Transmitter Receiver TX data sampling and PA control synchronized with TX clock pm LI Shut down the PA when SEN goes low T Transmit Manchester encoded data sampled with TX clock Front end LNA JF Channel Fite Combined a ry a m Transmit power and modulation control selection
46. ommand C Check device status automatically after each PAM change TX status Transmitting Check TX Status Receiver Receive Command Receive channel lo v Sub command CUNT Gain switch use high gain settings v Send Command Command status There either was no command issued recently it is still ongoing or it completed successfully Check Signal Monitoring Status 019aac430 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 21 of 44 NXP Semiconductors U M1 0472 UM10472 OL2381 Demo kit 3 2 4 GUI transmitter and receiver parameters 3 2 4 4 Transmitter parameters The transmitter parameters indicated by 4 in Figure 15 are discussed briefly in this section Modulation Control section allows the user to Select Modulation type either ASK or FSK Set output power AMHO AMH1 AML for modulated signal Set power amplifier output power PAM PAMO is recommended setting AM and FM blocks allows ASK and FSK settings Amplitude modulation depth for ASK signal Frequency deviation for FSK signal Ramp control for soft ASK and FSK to achieve narrow signal bandwidth Timing block allows the chip or bit clock to be selected for TX synchronization Transmit Command block on right side allows the user to Select the desired Transmit Channel i e Channel 0 1
47. output enable delay o 00000003 s Pin 20 port P10 DATA transmitter HighZ C invert output Transmit Command Transmit channel Normal port function P10 DATA is neither driven nor input high Z FI Shut down the PA when SEN goes low C Transmit Manchester encoded data sampled with TX clack Transmit power and modulation control selection ACONO v Pin 21 port PTT INT RZLRMPHANT 00 Activae HighZ invert output N TFET C Check device status automatically after each Transmit command he eat un C Check device status automatically after each PAM change PT1 INT is neither driven not input highZ TX status The device is in idle made Pin 22 port PI2 CLOCK Hinz invert output Check TX Status Normal port function Receiver P12 CLOCK is not driven high Z Receive Command Receive channel jo Sub command CONT v Select transmit clock source for SCLK or P12 CLOCK Gan switch use high gain settings x f transmitclock J Send Command When transmitting the output is set to the transmit clock f 62 500 00 Hz It is provided at SCLK Canda There ither was no comm aie WT Select continuous clock source for P11 INT and P12 CLOCK still ongoing or it completed successfully fate 2 fte S Check Signal Monitoring Status Select Test Signals for P11 INT and P12 CLOCK Pin 23 port P13 5DO HighZ C invert output Normal por
48. r output voltage VCC REG 31 PLL VCO regulators power supply GND 32 ground UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 11 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 3 Demo kit setup 3 1 UM10472 This chapter describes the step by step approach to set up the OL2381 for transmit and receive operation using the demo kit and GUI The description starts with demo kit hardware connections followed by a brief discussion on GUI setup and GUI windows Hardware connections The OL2381 demo kit includes the following items shown in Figure 1 Control board OL2381 RF board configurable to operate in one of three frequencies 315 MHz 434 MHz 868 MHz The transceiver chip is almost the same The RX path TX path and antenna are matched differently to attain optimal performance at each frequency A 20 pin flat cable connector A coax antenna cable L type RF probe Perform the following actions 1 Jumper setting on controller board make the default jumper setting on controller board as described in Section 2 2 2 on page 4 Jumper number 4 is important This jumper allows only the use of one supply for both boards For high performance measurements see Section 6 1 on page 41 Connections Connect PC and control board with RS 232 Cable cable not included
49. r supply RX test output RX test Q output LNA power supply receive RF signal input antenna or RX connector ground ground transmitted RF signal output antenna or TX connector PA regulator output voltage PA power supply digital regulator output voltage digital supply antenna switch control ground serial interface enable connected to P2 4 of microcontroller serial interface input output connected to P2 3 MISO and P2 4 MOSI of microcontroller serial interface clock connected to P2 5 of microcontroller TX data input RX data output connected to P2 6 of microcontroller interrupt line connected to pin P1 4 INT of microcontroller TX RX clock output connected to P2 7 of microcontroller All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 10 of 44 NXP Semiconductors UM10472 OL2381 Demo kit Table 4 OL2381 pin description continued Symbol Pin Description P13 5DO 23 serial interface data output connected to P2 3 MISO of microcontroller when the 4 wire communication is selected XTAL2 24 2 pin crystal oscillator XTAL1 25 1 pin crystal oscillator VCC XO 26 crystal oscillator supply RSTDIS 27 reset disable connected either to ground or to VCC depending on the position of its dedicated jumper TEN 28 test enable set to ground P15 RSSI TEST3 29 not connected VREG PLL 30 PLL regulato
50. reen LED interface to OL2381 SDIO interface to OL2381 SDIO or SDO interface to OL2381 SEN interface to OL2381 SCLK red LED buzzer 0 V reference power supply 2 3 RF board description This section briefly describes the RF board The two layer RF board contains the OL2381 IC printed antenna important test pins 16 MHz crystal switch connector for RF probe and transmit and receive matching components UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 6 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 2 3 1 RF board schematic TB n i G 2 iji JP2 o cua euuas ug UNS ONS OND ONS po4nses Ind PINHERD3 JP3 QNS al OND 823 iETes an P 23n OND UNS r MN N a S SS a ao g D Be uf NO L5 C28 C19 L18 C17 C16 a a i i i T EA l i Dl Die 2 i Ei S 3 GND GNO GND GNO 019aac419 Fig 4 Schematic of OL2381 RF board UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 7 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 2 3 2 RF board layout The layout is realized using a 2 layer technique The rear side is mainly the ground layer The eagle files are available for customers at
51. rol Board are a 3 V battery and an external power supply e A serial interface TXD RXD which allows in system programming of the microcontroller and the use of the HyperTerminal to control the microcontroller and or receive information from it A GUI interface which allows a direct control of the registers with a transparent mode of the microcontroller e 1 MB EEPROM memory with an I C interface Afull port OL2381 connection named RF interface It comprises an SPI interface and three additional lines P10 DATA P11 INT and P12 CLOCK used for sending and or receiving data during TX and RX operation of OL2381 The OL2381 RF Board contains an OL2381 and features An RF switch A50 O connector to choose between an antenna printed on the PCB or an external antenna It allows the RF signal to be monitored using standard lab equipment control board RS232 OL2381 RF board L type RF probe 019aac416 Fig 1 Complete OL2381 demo kit hardware All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 3 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 2 Hardware description 2 1 2 2 2 2 1 2 2 2 UM10472 Deliverables The OL2381 Demo Kit is delivered with the following hardware as shown in Figure 1 A Control Board An RF Board containing OL2381 IC matched for frequ
52. ss 0x10 16 PORTCONO j Show bit names 7 6 5 4 3 2 1 O Hex Dec Auto Auto afofo rfojolr o fz Te wie ne l Address 0x11 17 PORTCON1 Ese Show bit names V 7 6 5 4 3 2 1 0 Hex Dec v Auto Ado ajojajojojojijaj fz a wie Bee Fig 12 GUI register window 019aac427 3 2 8 8 LoPSTer Config GUI The LoPSTer configuration GUI shown in Figure 13 provides an easy to use real time interface This interface enables the user to configure a wide range of transmit and receive parameters The LoPSTer config GUI contains the following three tabs General Settings e Digital I O Port Control Operational Settings UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 18 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit General Settings see 1 in Figure 13 enables the user to Select LoPSTer version an option for predecessor OL2380 that is no longer valid for OL2381 as it supports all frequencies Calibrate reference XTAL frequency if necessary Select reset disable RSTDIS pin setting For detailed information regarding RSTDIS refer to the Data sheet OL2381 or Application note AN11039 EE LoPSTer Config GUI Hle Heb 1 General Settings Digital 1 0 Port Control Operational Settings Status and State Control LoPSTer version via Device Mode Idle x Read Registers
53. t function P13 SDO is not driven high Z Pin 15 port P14 PIND Hinz invert output 019aac429 Fig 14 Configuration window for digital I O port control UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 20 of 44 NXP Semiconductors UM10472 UM10472 Operational settings see 3 inFigure 15 OL2381 Demo kit Separate section for transmitter parameter settings and receiver parameter settings on left hand side LHS Separate section for transmit command and receive command settings on LHS Common sections for RF center frequencies and device status and state control e A choice between four different channels for TX and RX operation with the help of transmit channel and receive channel option block Status for local oscillator PLL transmit state and receive state can be checked at anytime by clicking the appropriate status button EB LoPSTer Config GUI Fle Hep General Settings 1 Digital 1 0 Port Control Operational Settings Local Oscillator and Clock Settings L1 71 This is the required setting for VCO band high VIA LoPSTer version VIA VCO sub band 0 PLLICP 0 Sigma delta output gain x1 normal v LO divider 2 f gt 512 MH s RF frequency resolution 48828 Hz RF Center Frequencies Channel 868 000244 Hz Channel2 5120002
54. ter 868 MHz 100 kHz Span 1 MHz 019aac450 Fig 34 CW output spectrum OL2381 supplied externally UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 42 of 44 NXP Semiconductors UM10472 7 Legal information OL2381 Demo kit 7 1 Definitions Draft The document is a draft version only The content is still under internal review and subject to formal approval which may result in modifications or additions NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information 7 2 Disclaimers Limited warranty and liability Information in this document is believed to be accurate and reliable However NXP Semiconductors does not give any representations or warranties expressed or implied as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information In no event shall NXP Semiconductors be liable for any indirect incidental punitive special or consequential damages including without limitation lost profits lost savings business interruption costs related to the removal or replacement of any products or rework charges whether or not such damages are based on tort including negligence warrant
55. tion GUI for 868 MHz receiver settings There are a number of important data captures shown in Figure 22 that have been circled in red These data captures are for the OL2381 reception and represent the following Channel frequency LNA gain setting Channel and baseband filter bandwidth Modulation type Slicer setting Device mode LO and PLL status Device is in data reception mode after sending receive command For detailed information regarding receiver parameters refer to Data sheet OL2381 or Application note AN11039 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 29 of 44 NXP Semiconductors U M1 0472 UM10472 OL2381 Demo kit An R amp S signal generator is used to generate the frequency of the expected signal for this example 868 MHz with e Fgey 15 kHz Manchester coded data 19200 chips s e Data 0 1 0 1 0 1 0 Using an L type RF probe establish a connection between the signal generator and RF board and inject the RF signal from the signal generator to OL2381 on the RF board Using an oscilloscope observe the data and clock pins on the RF board for received data and clock see Figure 23 L type RF probe Oscilloscope Clock Freq 19200 Hz Data Due to Manchester off plain data is shown Data and Clock Invert slicer output eo
56. tus automatically after each Transmit command C Check device status automatically after each PAM change TX status Transmitting Check TX Status Receiver Receive Command Receive channel O v Sub command DATA v Gain switch use high gain settings v Send Command Command status There either was no command issued recently it is still ongoing or it completed successfully Check Signal Monitoring Status 019aac446 UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 39 of 44 NXP Semiconductors UM10472 5 3 2 868 MHz reception Center frequency 868 MHz OL2381 Demo kit Data rate 4 8 kbit s Manchester coded symbol rate 9600 chips s Modulation type ASK Channel filter bandwidth 50 kHz OL2381 performed Manchester decoding Figure 31 is a compilation to enable all the relevant information to be visible on one page FE LoPSTer Config GUI Bie Help General Settings Digital 1 0 Port Control Operational Settings Local Oscillator and Clock Settings is is the required setting for pPSTer version VIA VCO subband 22 PLLICP 2 Sigma delta output gain jn normal v RF Center Frequencies Channel 868 000244 Hz Channel 2 512 000 244 Hz Channel 512 000 244 Hz Channel3 512 000 24 Hz Transmitter Receiver Status
57. us automatically after a Receive command RF frequency resolution 244 14 Hz LO status Some of the LO parts are not properly supplied RF Center Frequencies Channa 434 000 122 AD Channel 2 256 896 216 Hz Check LO Status 511 000 122 Hz Channel 1 Channel 3 511 003 784 Hz Transmitter Transmit Command Transmit channel ov v TX data sampling and PA control synchronized with TX clock C Shut down the PA when SEN goes low Transmit Manchester encoded data sampled with TX clock Transmit power and modulation control selection ACOND vj Activate eactivate Demodul lecli Check device status automatically after each Transmit command USES E Ds C Check device status automatically after each PAM change Channel filter bandwidth setti TX status The device is not in transmit mode Combined d Channel Filter Baseband Filter Check TX Status Baseband filter comer frequency setting 3 14 204kHz v Receiver Slicer and Coding Receive Command Edge slicer modulation amplitude threshold Receive channel 0 v Sub command DATA v wake up preamble data Gain switch use high gain settings v search detection reception slicer selection edge sen v edge se Send Command Command status There either was no command issued recently it is Data and Clock still ongoing or it completed successfully E Invert slicer output 3 mE E Manchester decoding Check Signal Monitoring Status
58. use without further testing or modification Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product design It is customer s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned as well as for the planned application and use of customer s third party customer s Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products UM10472 All information provided in this document is subject to legal disclaimers NXP Semiconductors does not accept any liability related to any default damage costs or problem which is based on any weakness or default in the customer s applications or products or the application or use by customer s third party customer s Customer is responsible for doing all necessary testing for the customer s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer s NXP does not accept any liability in this respect Export control This document as well as the item s described herein may be subject to export control regulations Export might require a pr
59. ution i RF Center Frequencies Channel 314 996 216 Hz Channel 2 297 316 528 ees Channel 272 281 372 Hz Channel3 264 031 372 Transmitter Transmit Command Chip rate 9 602 chips s Transmit chanel o m Transmitter Receiver l TX data sampling and PA control synchronized with TX clock Modulation Control Shut down the PA when SEN goes low ransmit Manchester encoded data sampled with TX clock AMHO 31 Modulation ty Transmit power and modulation control selection ACONO w AMH1 31 Modulation type 1 FSK v SE e ms ici Deana PAM w This is the recommended PAM setting Check device status automatically after each Transmit command n C Check device status automatically after each PAM change Invert transmitted data AM ASK modulation depth TX status Transmitting Check TX Status Relative ramp duration 00 of chip Receiver On Off ramp duration 00 of chip Receive Command Slew rate ity steps us Receive channel 0 Bl FM Sub command FSK frequency deviation 4 883 Gain switch use high gain settings v Send Command Slewirate Infinity Hz us Command status There either was no command issued recently it is still ongoing or it completed successfully Illustrate Check Signal Monitoring Status FSK modulation index 10 Relative ramp duration 0 0 ofchip BT nfinity Timing TX syn
60. v m z Ole Y A lO v Dp m K a DNO Oo B s s s b s b b b 5 b b b 7 b b b v LJ E 5 E L o 828T QI paeog owag TBEZ10 HAUS s4oyonpuoorueS dXN 019aac420 Fig 5 OL2381 RF board layout UM10472 All information provided in this document is subject to legal disclaimers NXP B V 2011 All rights reserved User manual Rev 1 14 December 2011 8 of 44 NXP Semiconductors U M1 0472 OL2381 Demo kit 2 3 3 Power supply distribution 2 3 4 The supply voltage applied to the RF Board from the Control Board is split into several paths Each supply path is routed from the star connection to the different supply pins of the OL2381 The supply voltage is the same as the supply voltage of the control board This jumper JP2 is used for monitoring the current consumption of the OL2381 which is quick and reliable indication of the OL2381 operation mode In the standard receive configuration current consumption is between 16 mA and 17 mA and in the transmit operation between 15 mA and 22 mA Each supply path is routed to the individual functional blocks of the OL2381 and uses separate bypass capacitors of 100 nF and 100 pF OL2381 has four built in voltage regulators which are required to stabilize and isolate the supply of functional blocks such as the power amplifier VCO PLL and digital circuitry Each regulator needs external bypassing capacitors
61. y breach of contract or any other legal theory Notwithstanding any damages that customer might incur for any reason whatsoever NXP Semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors Right to make changes NXP Semiconductors reserves the right to make changes to information published in this document including without limitation specifications and product descriptions at any time and without notice This document supersedes and replaces all information supplied prior to the publication hereof Suitability for use NXP Semiconductors products are not designed authorized or warranted to be suitable for use in life support life critical or safety critical systems or equipment nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury death or severe property or environmental damage NXP Semiconductors accepts no liability for inclusion and or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and or use is at the customer s own risk Applications Applications that are described herein for any of these products are for illustrative purposes only NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified
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