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deRFnode deRFgateway User Manual

1. www dresden elektronik de Page 26 of 56 User Manual Ee deRFnode and deRFgateway e Header Signal Function deRF deRF deRF pin name deRFsam3 gateway node 1TNP2 node 1TNP2 2TNP2 27 Ping NG NC 28 Pin7 PA4 TWCKO TCLKO Acceleration temperature and B luminosity sensor B 29 Pin6 PA7 RTSO PWMH3 XIN32 Free i 30 Pin5 RSTN E Reset E 31 Pin20 NC 8 NC 8 32 Pin3 ADVREF 5 Analog reference voltage 5 33 VCC 34 GND Table 19 User interface header pin assignment for plugged deRFsam3 23T09 3R Pin assignment Internal use Header Signal Function deRF deRF deRF pin name deRFsam3 gateway node 1TNP2 node 1TNP2 2TNP2 1 GND 2 VCC 3 SW2 NG NC 4 Pin21 NC NC 5 Pin27 PB2 URXD1 NPCS2 Free 6 Pin19 NC NC 7 Pin30 PBO PWMHO0O AD4 3 Free E 8 Pin17 PA5 RXDO NPCS3 5 Flash 5 9 Pin31 PB1 PWMH1 AD5 E LED2 5 10 Pin16 PA3 TWDO NPCS3 k Free E 11 Pin18 NC 2 NC 2 12 Pin15 PA6 TXDO PCKO Flash 13 Pin33 NC NC 14 Pin14 NC NC 15 Pin34 PA18 RD PCK2 AD1 Battery voltage monitoring selectable with jumper JP3 16 Pin13 PA2 PWMH2 SCKO Flash www dresden elektronik de Page 27 of 56 User Manual Ee deRFnode and deRFga
2. Date Version Description 2011 04 15 1 0 Initial version 2011 07 15 1 1 Update feature list 2011 09 28 1 2 Update case variants Addition of signal descriptions 2014 04 10 1 3 Addition of OEM radio modules Update feature list Update hardware selection example Update operation conditions Update operational ranges Update overview of platforms Update radio module interface Update supervisor section Minor description changes Dataflash replacement www dresden elektronik de Page 4 of 56 User Manual Versi Ke deRFnode and deRFgateway Abbreviations Analog to Digital Converter Advanced RISC Machine A kind of processor architecture Names a family of microcontrollers from Atmel Brownout Detection CE Consumer Electronics DBGU Debug Unit An UART dedicated to print debug traces available on ARM microcontrollers only EMAC Ethernet Media Access Controller FTDI USB to serial converter from FTDI GPIO Generals Purpose Input Output IC Inter Integrated Circuit another name for TWI Low Dropout Regulator JTAG Joint Test Action Group defines a standardized interface for programming and debugging microcontrollers uC MCU Micro Controller Unit PCBA Printed Circuit Board Assembled B P Physical layer refers to the lowest possible layer in a layered communica tion model Radio Frequency RMII Reduced Media Independent Interface
3. Surface Mount Technology Serial Peripheral Interface Through Hole Technology Abbreviation Description Transceiver Transmitter Receiver V O C Ke D H R M P H W Two Wire Serial Interface U S ART Universal Synchronous Asynchronous Receiver Transmitter DC RM R D CE Federal Communications Commission LDO Y F T T B Universal Serial Bus www dresden elektronik de Page 5 of 56 User Manual Ee deRFnode and deRFgateway e 1 Overview The deRFnode and deRFgateway are demonstration and application platforms for the AVR and ARM based dresden elektronik radio modules They support AVR and ARM program ming and communication over Serial USB and Ethernet interface Assembled environmental sensors supplies data for a huge bandwidth of user defined applications 2 Application The main applications for the deRFgateway platform are Coordinator and Router device for IEEE 802 15 4 compliant networks 6loWPAN nodes ZigBee Gateway between IEEE 802 15 4 and IEEE 802 3 Wireless Sensor Networks The main applications for the deRFnode platform are e Stand Alone End device for a IEEE 802 15 4 compliant network e applicable as coordinator for small networks e battery powered applications with a lifetime of several years e 6loWPAN nodes e ZigBee 3 Features The main features of deRFnode and deRFgateway are Compact size 69 x 75 x 30 mm Supports pluggable AVR or ARM ba
4. ase NH dE JP 2 Figure 11 Jumper configuration www dresden elektronik de Page 29 of 56 User Manual Be deRFnode and deRFgateway 8 Board features The deRFnode and deRFgateway platforms have a lot of available onboard features like three different sensors user defined buttons and LEDs USB and Ethernet interface a su pervisor and power supply monitoring LEDs Flash k gt e td N FrN An y ment ARBOR A 48 24D ANN Ve a ei Z ent A on ee CN Viel fr d LEEFER A W i PUTT VL ee Acceleration ES nt B A N sensor DEREREEEREER ie Ka as Temperature riding sensor Supervisor a tg Ambient light 7 en Adjustable Ss gt sensor LDO slee ap ar mutt 7 K II e Fixed LDO daje UE os p ESE St e Button 1 Button 2 USB serial Ethernet assembled on PHY Node AVR Figure 12 Board features www dresden elektronik de Page 30 of 56 User Manual Versi Ke deRFnode and deRFgateway 8 1 Onboard sensors Both platforms are assembled with onboard sensors temperature ambient light and accel eration All sensors are accessible over the two wire interface of deRFnode and deRFgate way The device addresses are noted in the following subsections The data and clock lines are equipped with 10k pull up resistors R22 and R23 TWI clock Pin 7 TWI data Pin 9 8 1 1 Temperature sensor The temperature sensor TMP102AIDRLT communicates over two wire interface with the mi c
5. 4 Pin21 PB15 ERXDV ECRSDV Ethernet Phy Free 5 Pin27 PAO RXDO Free Free g 6 Pin19 PB6 ERX1 Ethernet Phy Free T 7 Pin30 PB9 EMDIO Ethernet Phy Free E 8 Pin17 PA16 SPI0_MISO Flash Flash 9 Pin31 PB21 PWM2 PCK1 LED2 LED2 5 10 Pin16 PBO ETXCK EREFCK Ethernet Phy Free 11 Pin18 PB8 EMDC Ethernet Phy Free 12 Pin15 PA17 SPIO_MOSI Flash Flash 13 Pin33 PB19 PWMO TCLK1 LED3 LED3 www dresden elektronik de Page 24 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway Header Signal Function deRF deRF deRF pin name deRFarm7 gateway 1TNP2 node 1TNP2 node 2TNP2 14 Pin14 Button SW1 selectable with jumper PA3 RTSO SPI1_NPCS2 JP6 15 Pin34 Battery voltage monitoring selectable PB27 TIOA2 PWMO ADO with jumper JP3 16 Pin13 PA18 SPIO_SPCK Flash Flash 17 Pin36 PB28 TIOB2 PWM1 AD1_ USB voltage monitoring 18 Pin12 PB2 ETXO Ethernet Phy Free 19 Pin37 PB5 ERX0 Ethernet Phy Free 20 Pin4 USBDM Native USB 21 Pin39 PB7 ERXER Ethernet Phy Free 22 Pin32 USBDP Native USB 5 23 Pin41 PB1 ETXEN Ethernet Phy Free 8 24 Pin11 Interrupt output of acceleration sensor 2 or button SW2 selectable with jumper E PB25 TIOA1 DTR1 JP1 8 25 Pin10 PA1 TXDO Free Free S 26 Ping Acceleration temperature and lumi PA10 TWD nosity sensor 27 Ping PB26 TIOB1 RI1 LED1 LED1 28 Pin7 Acceleration temperature and lumi PA11 TWCK
6. BMA150 acceleration sensor 2 4V 3 6V 1A 200A 290A ISL29020 luminosity sensor 1 7V 3 6V 500nA 65uA TMP102AIDRLT temperature sensor TBD TBD TBD TBD TBD AT25DF041A SSHF 4Mbit serial Flash 2 3V 3 6V 25uA 10mA 20mA M25P40 VMN6TPB 4Mbit serial Flash 2 3V 3 6V 10A 8mA 15mA FT245RL USB for AVRs 4 0V 5 25V 50A 15mA 24mA radio transceiver in listening state depends on external load 5 3 2 Current consumption Test conditions T 25 C Firmware executed from Flash no external cabling i e Level Shifter JTAG unless stated otherwise 5 3 2 1 DC powered The used AC DC converter has an output voltage of 5VDC Table 6 HW Setup 1 Hardware setup Condition Vpc 5VDC Working Sleep Idle Typ Max deRFgateway 1TNP2 O00NO0 deRFarm7 24mA 97mA 161mA lt 200mA deRFnode 1TNP2 00NO0 deRFarm7 250UA 37mA 41mA lt 80mA deRFnode 2TNP2 00NO0 deRFarm7 5mA 34mA 38mA lt 80mA deRFnode 2TNP2 00N00 deRFmega128 10yA 10mA 20mA lt 40mA 1 6 5 3 2 2 See Table 7 Battery powered variable voltage When battery powered the current consumption does not significantly differ from the values given above only if using an AVR based MCU the current consumption sinks slightly Re mark the notes on working voltage above 5 3 2 3 USB powered When USB powered the current consumption increases due to USB transceiver activity
7. X4 Ethernet RJ45 socket X5 Debug interface 6 Pin Debug header X6 JTAG for ARM 20 Pin JATG header for ARM programmer X7 JTAG for AVR 10 Pin JTAG header for AVR programmer X8 User Interface 34 Pin user header x9 5 VDC connector for power supply X10 USB type B plug for power supply and data exchange The pin number one is marked with a triangle on all headers in Figure 3 www dresden elektronik de Page 13 of 56 User Manual Version 1 3 Gene deRFnode and deRFgateway IE Er GARE x8 i NAAA aAa aA 2 X5 34 pin user aal A oes o 6 pin debug ARE TING AKAAERE 4 os e ed St eg Lo Sit A ew er X6 X1 X2 i 20 pin JTAG radio module w ER X7 8 ht 8 7 mint 10 pin JTAG di x9 5 VDC X10 eg X4 USB type B Ethernet RJ45 Figure 3 deRFgateway 1TNP2 a LESSER Reeg Figure 4 deRFnode 1TNP2 Figure 5 deRFnode 2TNP2 www dresden elektronik de Page 14 of 56 User Manual Mn deRFnode and deRFgateway 7 Pin assignment This section describes the available headers on the deRFnode and deRFgateway platforms as summarized in Table 8 7 1 Radio module interface The deRFnode and deRFgateway will support all dresden elektronik radio modules Depend ing on the radio module and the platform some features will not be supported The details of radio module specific signals are available in the associated user manuals O gt vee module SBRESTELSESSLKSRKLEBRESBBURKS VCC_module lt S Figu
8. ETx1 ETx0 ETXEN ERXER ERx1 ERxO ERxDV EMDC EMDIO MDINTR RSTN DP838481 Figure 21 Ethernet PHY DP83848I www dresden elektronik de Page 36 of 56 User Manual Versi Kee deRFnode and deRFgateway 8 6 Power supply The deRFgateway and deRFnode platform have two different low dropout regulators LDO The first variant is a fixed 3 3VDC supply voltage output for DC and or USB powered applica tions like deRFgateway with Ethernet The second variant is an adjustable supply voltage output a low quiescent current LDO the output voltage can be configured by assembling the resistors R56 and R57 Details can be found in the respective datasheets 9 10 Fixed LDO TPS79433DGN Adjustable LDO TPS78001 R57 R49 R56 R48 Figure 22 Resistors for adjustable supply voltage Table 21 LDO configuration Power supply LDO LDO Configuration Platform fixed adjustable R48 R49 R56 R57 Vout deRFnode 1TN2P 00NO00 X n a OR na ma 3 3VDC deRFnode 2TN2P 00NO00 x OR na 2M 820K 3 3VDC deRFgateway 1TN2P 00NO0 x na OR na ma 3 3VDC Table 22 Adjustable LDO configuration www dresden elektronik de Page 37 of 56 User Manual Versi Ke deRFnode and deRFgateway Power supply LDO Adjustable voltage configuration default R48 R49 R56 R57 Vout TPS78001 x OR n a 2M 820K 3 3VDC OR n a n a 820K 2 7VDC O
9. Header Signal uC Port Header Signal uC Port pin name deRFsam3 pin name deRFsam3 1 VCC 24 VCC 2 GND 25 GND 3 Pin3 ADVREF 26 Pin26 PA9 URXDO NPCS1 4 Pin4 PB10 DDM 27 Pin27 PB2 URXD1 NPCS2 AD6 5 Pin5 RSTN 28 Pin28 PA10 UTXD0O NPCS2 6 Pin6 PA7 RTSO PWMH3 XIN32_ 29 Pin29 PA8 CTSO ADTRG XOUT32 7 Pin7 PB5 TDO TWCK1 30 Pin30 PBO PWMH0 AD4 8 Ping INC 31 Pin31 PB1 PWMH1 AD5 9 Pin9 PB4 TDI TWD1 32 Pin32 PB11 DDP 10 Pin10 PB3 UTXD1 PCK2 AD7 33 Pin33 INC 11 Pin11 NG 34 Pin34 PA18 RD PCK2 AD1 12 Pin12 NG 35 Pin35 NC 13 Pin13 PA2 PWMH2 SCKO 36 Pin36 PA19 RK PWMLO AD2 14 Pin14 NC 37 Pin37 NG 15 Pin15 PA6 TXDO PCKO 38 Pin38 PB7 TXK SWCLK 16 Pin16 PA3 TWDO NPCS3 39 Pin39 NC 17 Pin17 PA5 RXDO NPCS3 40 Pin40 PB6 TMS SWDIO 18 Pin18 NC 41 Pin41 PA20 RF PWML1 AD3 19 Pin19 NC 42 Pin42 PB5 TDO TWCK1 20 Pin20 PA0 PWMHO0 TIOAO 43 Pin43 JTAGSEL 21 Pin21 NC 44 Pin44 PB4 TDI TWD1 22 GND 45 GND 23 GND 46 GND www dresden elektronik de Page 19 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway 7 2 Debug interface The debug header may be used for device interconnecting via USART like on a PC Re member that a level shifter between TTL and RS232 may be required VCC DEBUG HEADER Figure 7 Debug header The following table shows the signal description Table 13 Debug Header Pin assignment Pin assignment
10. Header Signal Function Header Signal Function pin name pin name 1 Pin28 TXD UARTO DBGU 2 VCC Pin13 SCK Pin26 RXD UARTO DBGU Pin5 RSTN GND www dresden elektronik de Page 20 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway 7 3 JTAG for ARM The header layout conforms to the 20 pin assignment traditionally used for ARM MCUs VCC Pin42 Pin5 13 14 15 16 oe 19 20 C JTAG HEADER ARM D Figure 8 JTAG for ARM header The following table shows the signal description Table 14 JTAG for ARM header pin assignment Pin assignment Header Signal Function Header Signal Function pin name pin name 1 VCC 2 VCC 3 100K Pullup 4 GND 5 Pin44 TDI 100K Pullup 6 GND 7 Pin40 TMS 100K Pullup 8 GND 9 Pin38 TCK 100K Pullup 10 GND 11 Pin38 RTCK 12 GND 13 Pin42 TDO 14 GND 15 Pin5 RSTN 16 GND 17 N C 18 GND 19 N C 20 GND www dresden elektronik de Page 21 of 56 User Manual Versi Ke deRFnode and deRFgateway 7 4 JTAG for AVR The header layout conforms to the 10 pin assignment used usually for AVR X7 VCC 8 A JTAG HEADER AVR DGND Figure 9 JTAG AVR header The following table shows the signal description Table 15 JTAG for AVR header pin assignment Pin assignment Header Signal Function Header Signal Function pin name pin nam
11. clock interface between MCU and transceiver set the MAC address 2 Initialize the PHY power up setup up connection preferences like Auto negotiation LinkSpeed and Duplex behavior This is done by writing to the PHYs register set 3 Initialize local reception and transmission buffers 4 Enable receiver and transmitter Afterwards it s up to the application to process incoming frames and handle changes of the link state Ethernet cable plugged unplugged changes of link speed Since the transceiver only throws interrupts upon state changes the application has to poll for incoming frames Due to complexity we skipped printing code snippets here If you bought a deRFdevelop ment kit the included Kit CD provides the respective application source code entirely Oth erwise a good starting point is the At91Lib s basic emac project application exam ple All EMAC Library functions are to be found in peripherals emac emac c while the PHY transceiver abstraction resists under components ethernet The AT91Lib as sumes you have a DM9161 transceiver which unfortunately is not compatible with the DP83848C assembled on the deRFgateway board For further information please refer to the datasheets 10 4 7 Minimize device power consumption Optimizing the energy consumption is especially important if the device is battery powered to ensure a long battery lifetime If the USB cable is plugged the device gets its power through the USB
12. Bit 0 Pin 16 USB Bit 1 Pin 41 USB Bit 2 Pin 12 USB Bit 3 Pin 6 USB Bit 4 Pin 37 USB Bit 5 Pin 19 USB Bit 6 Pin 39 USB Bit 7 Pin 18 www dresden elektronik de Page 34 of 56 User Manual LE deRFnode and deRFgateway place pads directly on usb data lines to avoid stubs in assembly variants eee eee oe USBDP AVR Figure 19 Serial USB interface part 1 The control of the FT245RL is established over the following signals USBRD Pin 27 USBWR Pin 10 RX Pin 30 TX Pin 21 USB_DO USB_Bito 1 USB _Bit1 4 Pint2 USB_Bit2 Le Ping_D USB Bit USB_Bit4 USB Bit5 USB Bits La Pini USB _Bit7 TXB0108 B 3 3V A 1 8V 3 3V Voca lt Vecb B 3 3V A 1 8V 3 3V Voca lt NOCH Figure 20 Serial USB interface part 2 www dresden elektronik de Page 35 of 56 User Manual Seege deRFnode and deRFgateway 8 5 Ethernet The Ethernet interface is offered only on the deRFgateway platform and can be used in combination with the deRFarm7 radio module which contains an Ethernet MAC The deRFgateway is assembled with the Ethernet PHY DP83848I 8 and runs in RMII mode with a 50 MHz clock The Ethernet PHY is connected with the radio module microcontroller over the following sig nal pins ETXO Pin 12 ERXER Pin 39 ETX1 Pin 6 Pin 21 ERXO Pin 37 Pin 18 ERX1 Pin 19 Pin 30 Pin 20 ETXEN Pin 41 Q1 VCC A R1 ETxCK Pint6 Ra DUT DE 2 ST e SND ICC x 50 0 MHz C1 100nF
13. PF2 ADC2 19 Pin19 PB4 OC2 PCINT4 42 Pin42 PF6 ADC6 TDO 20 Pin20 PB7 OCOA OC1C PCINT7 43 Pin43 RSTON 21 Pin21 PB5 OC1A PCINT5 44 Pin44 PF7 ADC7 TDI 22 GND 45 GND 23 GND 46 GND www dresden elektronik de Page 16 of 56 User Manual Versi Ke deRFnode and deRFgateway Table 10 Pin assignment for deRFarm7 series Pin assignment Header Signal uC Port Header Signal uC Port pin name deRFarm7 pin name deRFarm7 1 VCC 24 VCC 2 GND 25 GND 3 Pin3 ADVREF 26 Pin26 PA27 DRXD PCK3 4 Pin4 USBDM 27 Pin27 PA0 RXDO 5 Pin5 RSTN 28 Pin28 PA28 DTXD 6 Pin6 PB3 ETX1 29 Pin29 PA4 CTSO SPI1_NPCS3 7 Pin7 PA11 TWCK 30 Pin30 PB9 EMDIO 8 Ping PB26 TIOB1 RI1 31 Pin31 PB21 PWM2 PCK1 9 Ping PA10 TWD 32 Pin32 USBDP 10 Pin10 PA1 TXDO 33 Pin33 PB19 PWMO0 TCLK1 11 Pin11 PB25 TIOA1 DTR1 34 Pin34 PB27 TIOA2 PWM0 ADO 12 Pin12 PB2 ETX0O 35 Pin35 PA14 SPIO_NPCS2 IRQ1 13 Pin13 PA18 SPIO_SPCK 36 Pin36 PB28 TIOB2 PWM1 AD1 14 Pin14 PA3 RTSO SPI1_NPCS2_ 37 Pin37 PB5 ERX0 15 Pin15 PA17 SPI0O_MOSI 38 Pin38 TCK 16 Pin16 PBO ETXCK EREFCK 39 Pin39 PB7 ERXER 17 Pin17 PA16 SPI0_MISO 40 Pin40 TMS 18 Pin18 PB8 EMDC 41 Pin41 PB1 ETXEN 19 Pin19 PB6 ERX1 42 Pin42 TDO 20 Pin20 PB18 EF100 ADTRG 43 Pin43 JTAGSEL 21 Pin21 PB15 ERXDV ECRSDV 44 Pin44 TDI 22 GND 45 GND 23 GND 46 GND www
14. a deRFmega128 module the respective power reduction register has to be used include lt power h gt PRR1 1 lt lt PRTRX24 power down transceiver Any other Atmel radio transceiver e g AT86RF212 on deRFarm7 series radio modules has an internal state machine which may be switched to sleep state by toggling the levels on the SLP_TR and RST lines SLP_TRL RST L gt force RESET state wait 1us then set RST H gt TRX_OFF state put SLP TRH gt SLEEP state leave SLP_TR H setting it back to L would result in transition back to TRX_OFF The following diagram taken from AT86RF212s datasheet illustrates the procedure from all states IRST L FORCE TREK OFF all states except SLEEP all states except P_ON gt e a e A Figure 34 State control source ATMEL AT86RF212 transceiver datasheet 12 4 Remove any unneeded external cabling such as a level shifter or your JTAG program ming adapter if your application allows 5 Switch off the onboard LEDs 6 Put the onboard Flash to Deep Power Down Mode 7 Disable the onboard USB FIFO only deRFnode gateway for AVR On boards equipped with a FTDI USB FIFO the USB transceiver may be disabled only by physically disconnecting the USB cable Due to a hardware issue it may still happen that the octal driver IC9 energizes back the FIFO IC8 To avoid that ensure that in contrast to 8 RD and WR always drive high current 8 Ensu
15. datasheets for details 4 5 www dresden elektronik de Page 53 of 56 User Manual Versi Ke deRFnode and deRFgateway References 1 Datasheet Temperature Sensor TMP102AIDRLT http www ti com cn cn lit ds symlink tmp1 02 pdf 2 Datasheet Ambient Light Sensor ISL29020IROZ T7 https www intersil com content dam Intersil documents isl2 isl29020 pdf 3 Datasheet Acceleration Sensor BMA150 http ae bst resource bosch com media products dokumente bma150 BST BMA150 DS000 07 pdf 4 Datasheet Atmel Flash AT25DF041 http Avww datasheetarchive com AT 25DF041 datasheet html 5 Datasheet Micron Flash M25P40 http www micron com media Documents Products Data 20Sheet NOR Flash Serial NOR M25P M25P40 pdf 6 Datasheet USB FIFO FT245RL http Awww ftdichip com Documents DataSheets ICs DS_FT245R paf 7 Datasheet Levelshifter TXB0108 http Avww ti com lit ds symlink txb01 08 padf 8 Datasheet Ethernet PHY DP83848I http www ti com lit ds symlink dp83848i padf 9 Datasheet Single channel LDO TPS79433 http Awww ti com lit ds symlink tps 79433 pdf 10 Datasheet Single channel LDO TPS78001 http Avww ti com lit ds symlink tps 78001 pdf 11 Datasheet Power Supervisor LTC2935 http eds linear com docs en datasheet 2935fa pdf 12 Datasheet Atmel AT86RF212 IEEE 802 15 4 transceiver http www atmel com Images doc8168 pdf 13 Atmel IEEE 802 15 4 MAC Software Package http Awww atmel com tools IEEE802_15 4MAC
16. dresden elektronik de Page 17 of 56 User Manual Versi Ke deRFnode and deRFgateway Table 11 Pin assignment for deRFsam3 series 13T02 23T02 2 Pin assignment Header Signal uC Port Header Signal uC Port pin name deRFsam3 pin name deRFsam3 1 VCC 24 VCC 2 GND 25 GND 3 Pin3 ADVREF 26 Pin26 PA9 URXDO NPCS1 4 Pin4 PB10 DDM 27 Pin27 PB2 URXD1 NPCS2 AD6 5 Pin5 RSTN 28 Pin28 PA10 UTXD0O NPCS2 6 Pin6 PA7 RTSO PWMH3 XIN32 29 Pin29 PA8 CTSO ADTRG XOUT32 7 Pin7 PA4 TWCKO TCLKO 30 Pin30 PBO PWMH0 AD4 8 Ping INC 31 Pin31 PB1 PWMH1 AD5 9 Pin9 PA3 TWDO NPCS3 32 Pin32 PB11 DDP 10 Pin10 PB3 UTXD1 PCK2 AD7 33 Pin33 NC 11 Pin11 NG 34 Pin34 PA18 RD PCK2 AD1 12 Pin12 NG 35 Pin35 NC 13 Pin13 PA2 PWMH2 SCKO 36 Pin36 PA19 RK PWMLO AD2 14 Pin14 NC 37 Pin37 NG 15 Pin15 PA6 TXDO PCKO 38 Pin38 PB7 TXK SWCLK 16 Pin16 NG 39 Pin39 NC 17 Pin17 PA5 RXDO NPCS3 40 Pin40 PB6 TMS SWDIO 18 Pin18 NC 41 Pin41 PA20 RF PWML1 AD3 19 Pin19 NC 42 Pin42 PB5 TDO TWCK1 20 Pin20 NC 43 Pin43 JTAGSEL 21 Pin21 NG 44 Pin44 PB4 TDI TWD1 22 GND 45 GND 23 GND 46 GND www dresden elektronik de Page 18 of 56 User Manual Versi Ke deRFnode and deRFgateway Table 12 Pin assignment for deRFsam3 23T09 3R Pin assignment
17. elektronik de Page 39 of 56 User Manual Versi Kee deRFnode and deRFgateway 8 8 Current measurement For current consumption tests of the radio module it is possible to place an ampere meter on jumper JP5 JPS vec lt t fO Of gt vee module JP 2 Figure 27 Current measurement for radio module 8 9 USB supply voltage monitoring The monitoring of the USB power supply can be used as USB detection The USB voltage can be detected over a voltage divider on Pin 36 USB detection Pin 36 USB5V Figure 28 USB supply voltage monitoring 8 10 Battery supply voltage monitoring It is useful to monitor the supply voltage of battery powered devices to detect low battery charge The disadvantage is a quiescent current because of the assembled voltage divider The battery monitoring can be activated by setting jumper JP3 and read from Pin 34 Battery monitoring Pin 34 JP3 R42 Figure 29 Battery supply voltage monitoring www dresden elektronik de Page 40 of 56 User Manual Versi Kee deRFnode and deRFgateway 9 Case variants For some applications it is useful to cover the PCBA with a suitable case like fixing deRFnodes and deRFgateways on the wall within a building Dresden elektronik offers dif ferent case variants depending on board features deRFcase Node deRFcase Gateway deRFcase Node with external SMA female antenna port deRFcase Gateway with external SMA female antenna port The case
18. line in this case it makes no sense to think about power down modes If finally Ethernet shall be used the power consumption is too large for reasonably powering the de vice via batteries so here DC power should be used which implies that the energetic optimi zation is also obsolete Reference values of power consumption are given in Section 5 3 The following list describes what might be done to decrease the power consumption De pending on your application requirements not all points may be realizable 1 Power down the Ethernet transceiver H you did not explicitly activate it the transceiver already is powered down Otherwise configure the transceiver PWR_DOWN INT line to be a Power Down line by writing a log ical zero to the MII Interrupt control register MICR address 0x11 bit 0 Also ensure that the MCU pin connected to the PWR DOWN line has no internal pull up activated The onboard pull down resistor will now force an Ethernet transceiver power down www dresden elektronik de Page 49 of 56 User Manual Versi Ke deRFnode and deRFgateway 2 Power down the I C sensors In factory default state and if you didn t configure them only the acceleration sensor is active Although we recommend to explicitly disable all three sensors This comprises of sending stop conversion commands as well as disabling any auto conversion mode 3 Power down the radio transceiver This step depends on the radio module used If you have
19. lt ADPS2 1 lt lt ADPSO Prescaler 32 elif F CPU 8000000UL ADCSRA 1 lt lt ADPS2 Prescaler 16 elif F CPU 4000000UL ADCSRA 1 lt lt ADPS1 1 lt lt ADPSO Prescaler 8 elif F_CPU 1000000UL ADCSRA 1 lt lt ADPSO Prescaler 2 else Page 46 of 56 User Manua Version 1 3 Baia deRFnode and deRFgateway error unsupported F CPU endif put into free running mode ADTS2 0 0b000 gt no changes required enable ADC ADCSRA 1 lt lt ADEN Start Conversion Clear ADIF ADCSRA 1 lt lt ADSC wait for completion while ADCSRA amp 1 lt lt ADIF get measurement ade val ADC disable ADC ADCSRA amp 1 lt lt ADEN convert to real battery voltage mv v bat c adc val 10 4 5 Accessing the external flash Each deRFnode gateway board provides a serial flash device which is accessed via the SPI interface Although being from Atmel s AT25 family if behaves similar to the well known AT26 Flash devices So when using an ARM MCU the AT91 Library functions from memo ries spi flash spid c and at26 c may be employed to allow chip identification you still may add its JEDEC ID 0x0001441F to the table of device identifiers Array of recognized serial firmware dataflash chips Static const At26Desc at26Devices Other AT25DF041 O0x0001441F 1 512 1024 256 6
20. nosity sensor 29 Pin6 PB3 ETX1 Ethernet Phy Free 30 Pin5 RSTN Reset 31 Pin20 PB18 EF100 ADTRG Ethernet Phy Free 32 Pin3 ADVREF Analog reference voltage 33 VCC 34 GND www dresden elektronik de Page 25 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway Table 18 User interface header pin assignment for plugged deRFsam3 13T02 23T02 2 Pin assignment Internal use Header Signal Function deRF deRF deRF pin name deRFsam3 gateway node 1TNP2 node 1TNP2 2TNP2 1 GND 2 VCC 3 SW2 NG NC 4 Pin21 NC NC 5 Pin27 PB2 URXD1 NPCS2 Free 6 Pin19 NC NC 7 Pin30 PBO PWMHO AD4 Free 8 Pin17 PA5 RXDO NPCS3 Flash 9 Pin31 PB1 PWMH1 AD5 LED2 10 Pin16 NC NC 11 Pin18 NC NC 12 Pin15 PA6 TXD0 PCKO Flash 13 Pin33 NC 8 NC z 14 Pin14 NC z NC z 15 Pin34 PA18 RD PCK2 AD1 8 Battery voltage monitoring se 8 lectable with jumper JP3 E 16 Pin13 PA2 PWMH2 SCKO 2 Flash 2 17 Pin36 PA19 RK PWMLO AD2 USB voltage monitoring 18 Pini2 NC NC 19 Pin37 NC NC 20 Pin4 PB10 DDM Native USB 21 Pin39 NC NC 22 Pin32 PB11 DDP Native USB 23 Pin41 PA20 RF PWML1 AD3 Free 24 Pin11 NC NC 25 Pin10 PB3 UTXD1 PCK2 AD7 Free 26 Pin9 PA3 TWDO NPCS3 Acceleration temperature and luminosity sensor
21. only support the GCC so the following explanations may not fully work with different compilers Since this should not become a programming tutorial please refer to the individual device datasheets for details Also the code snippets given in the following chap ters are only extracts If you like to use them it s up to you to surround them with a working main application and add inclusions for necessary header files that may have been left For ARM MCU based development the AT91SAM7 Software Package 20 delivers besides many application examples the so called AT91Library a large collection of higher level functions simplifying the development process Another starting point might be the Atmel Software Framework ASF which comes with Atmel Studio However ASF is not considered within this chapter All following chapters base on the AT91SAM 7 Software Package Down load and extract it to a directory of your desire Now change to the packages subdirectory where you will find a set of application examples one archive per application and compiler www dresden elektronik de Page 42 of 56 User Manual Versi Ke deRFnode and deRFgateway Delete all non GNU based examples and extract the remaining to a common directory con firm to overwrite files when asked This is necessary since the AT91Lib is provided in parts only where each is specially tailored to the belonging application example Any path stated in future is to be seen relat
22. owners in certain countries only Other brands and their products are trademarks or registered trademarks of their respective hold ers and should be noted as such Disclaimer This note is provided as is and is subject to change without notice Except to the extent pro hibited by law dresden elektronik ingenieurtechnik gmbh makes no express or implied war ranty of any kind with regard to this guide and specifically disclaims the implied warranties and conditions of merchantability and fitness for a particular purpose dresden elektronik in genieurtechnik gmbh shall not be liable for any errors or incidental or consequential damage in connection with the furnishing performance or use of this guide No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or any means electronic or mechanical including photocopying and recording for any purpose other than the purchaser s personal use without the written permission of dres den elektronik ingenieurtechnik gmbh Copyright 2014 dresden elektronik ingenieurtechnik gmbh All rights reserved www dresden elektronik de Page 56 of 56
23. will be delivered in a pre installed state 2x external buttons 4x lightpipes for LED and ambient light sensor Socket for deRFnode or deRFgateway Mounting material like screws and shims Fixed pigtail with SMA connector for antenna version The case has a size of 81 x 85 x 40 mm L x W x H with a light grey color and a protection rating of IP40 Please refer to Install Instructions for deRFcase on dresden elektronik homepage e e Figure 30 deRFnode case Figure 31 deRFgateway case GA c g Figure 32 deRFnode case Figure 33 deRFgateway case with antenna connector with antenna connector www dresden elektronik de Page 41 of 56 User Manual Ee deRFnode and deRFgateway e 10 Programming 10 1 Requirements HW SW Usually deRF radio modules are shipped with a firmware not meeting your custom applica tion requirements Exchanging the modules firmware requires 1 a firmware binary file 2 a suitable JTAG programming adapter 3 some programming software The following chapters give an overview of creating your own firmware and downloading it onto your target Generally we suggest using MS Windows as your developing platform other operating systems are not supported yet Depending on the radio module used addi tional programming hardware may be required 10 2 Source code and compiler toolchain If you bought one of our deRF development kits the included CD ROM contains ready to use application example f
24. 4 1024 he A typical initialization of the SPI flash driver may look like SPIO pin definitions define PIN SPIO MISO 1 lt lt 16 AT91C_BASI Ia PIOA AT91C ID PIOA PIO PERIPH A PIO PULLUP define PIN SPIO MOSI 1 lt lt 17 AT91C BASE PIOA AT91C_ID PIOA PIO PERIPH A PIO DEFAULT define PIN SPIO SPCK 1 lt lt 18 AT91C BASE PIOA AT91C_ID PIOA PIO PERIPH A PIO DEFAULT define PIN SPIO NPCSO 1 lt lt 14 AT91C BASE PIOA AT91C_ID PIOA D D F ERIPH A PIO DEFAULT define PINS SPIO PIN SPIO MISO PIN SPIO MOSI PIN SPIO SPCK Base address of SPI peripheral connected to the serialflash define BOARD AT25 SPI BASE AT91C BASE SPIO Identifier of SPI peripheral connected to the serialflash define BOARD AT25 SPI ID AT91C ID SPIO Pins of the SPI peripheral connected to the serialflash define BOARD AT25 SPI PINS PINS SPIO PIN SPIO NPCSO static Spid spid SPI driver instance Static At26 at26 Serial flash driver instance Static Pin pins BOARD AT25 SPI PINS www dresden elektronik de Page 47 of 56 User Manua Version 1 3 deRFnode and deRFgateway 2014 04 10 PIO Configure pins PIO LISTSIZE pins AIC ConfigureIT BOARD AT25 SPI ID 0 ISR Spi SPID Configure amp spid BOARD AT25 SPI BASE BOARD AT25 SPI ID AT26 Configure sat26 amp spid BOARD AT25 NPCS AIC EnableIT BOARD A
25. AC C Sensors will start to fail The probability that they do grows the lower the voltage is For concrete working voltage ranges please refer to the table below as well as the respective components datasheets To avoid unstable behaviour the board supplies a reset supervisor which drives a pin low if the input voltage sinks below 2 4V DC deRFnode gateway for AVR respective 3 0V DC deRFnode gateway for ARM This pin is routed to the radio module MCUs reset entry Pin5 To enable a too low voltage causing a MCU reset JP4 must be closed On ARM MCUs the reset supervisor must be explicitly enabled see Section 8 7 Table 5 Operational ranges Device Remark Required Current consumption operational voltage range Min Max Min Typ Max AT91SAM7X512 on deRFarm7 radio 3 0V 3 6V 6OHA 90mA2 200mA modules AT86RF231 any Atmel radio trans and ceiver used on deRF 1 8V 3 6V lt 0 2uA 12mA lt 25mA AT86RF212 arm7 radio modules Atmega128RFA1 on deRFmega128 ra mu 36V 20nA iele 2 dio modules Atmega256RFR2 on deRFmega256 ra 1 8V 3 EN 20nA EE 2 dio modules www dresden elektronik de Page 10 of 56 User Manual Ee deRFnode and deRFgateway deRFmega128 Atmega128RFA1 or 22713 Atmega256RFR2 with 22 5mA or onboard Front End 2 0V 3 6V 1pA 12 lt 233mA deRFmega256 PA LNA 23T13 DP83848C on deRF gateway for am 33V 14mA E 92mA ARM only
26. R n a 2M n a 1 8VDC SC MESSE e U 1 H H H i 1 H H 1 1 H H H H H H i U H H U 1 H H out kA mr 3 5 C40 DGND ee GND 10nF DGND TPS79433DGN DGND Figure 23 Fixed LDO TPS79433DGN DGND DGND DGND Figure 24 Adjustable LDO TPS78001 8 7 Supervisor The assembled low power supervisor LTC2935ITS8 1 11 has selectable threshold voltages They can be set by the OR resistors R58 R59 R60 R61 R62 and R63 If the voltage level drops below the threshold the supervisor sets a low active reset on Pin 5 This should provide an optimal function of deRFnode and deRFgateway However in some cases it is not desired to get such a reset If the jumper JP4 is removed the supervisor reset signal will not affect the circuit www dresden elektronik de Page 38 of 56 User Manual Version 1 Ke deRFnode and deRFgateway Reset Pin 5 R58 R61 R59 R62 R60 R63 Figure 25 Resistors for supervisor configuration Table 23 Supervisor configuration Supervisor Platform R58 R59 R60 R61 R62 R63 Threshold deRFnode 1TN2P 00NO00 n a OR OR OR na n a 3 0 VDC deRFnode 2TN2P 00NO00 OR na OR na OR na 2 4 VDC deRFgateway 1TN2P 00NO00 na OR OR OR na n a 3 0 VDC VCC VCC A VCC A LTC2935ITS8 1 DGND Figure 26 Supervisor LTC2935ITS8 1 with configuration resistors for deRFgateway www dresden
27. T25 SPI ID Afterwards you may evaluate the number of pages and the pagesize since this is important for each further access unsigned int numPages AT26 PageNumber amp at26 unsigned int pageSize AT26 PageSize amp at26 Since low level accessing the flash device is not trivial the application Example basic serialflash project from the AT91 Library already provides a set of functions necessary to perform read and write operations erase protect and unprotect the flash memory For fur ther details please refer to basic serialflash project main c If you like to access the external flash with an AVR MCU a code snippet suitable for reading the manufacturer and device Ids see AT25DF041 datasheet chapter 10 is uint8 t I data 4 Set MOSI SCK and CS output all others input DDRB 1 lt lt PB2 1 lt lt PB1 DDRE 1 lt lt PE5 Enable the SPI interface make the MCU SPI master SPCR 1 lt lt SPE 1 lt lt MSTR Select the serial clock SCK to be FOSC 4 and double it i e if CPU runs at 8MHz SPI clock will be 4MHz Wi SPCR amp 1 lt lt SPRO 1 lt lt SPR1 SPSR 1 lt lt SPI2X Start SPI transaction by setting CS low PORTE amp 1 lt lt PE5 Send the command byte Read Manufacturer and Device ID SPDR Ox9F wait for termination while SPSR amp 1 lt lt SPIF for i 0 i lt 4 i Do dum
28. a and or switch on off a relay Required components Platforms deRFnode 2TNP2 00NO00 deRFgateway 1TNP2 00NO00 Radio modules deRFmega128 22A00 deRFarm7 25A00 Software 6LoWPAN Stack by dresden elektronik Development Kit deRFdevelopmentKit 6LoOWPAN 2 4 GHz Order code BN 032518 Available at https shop dresden elektronik de 4 3 Point to Point connection for simple applications Application The simplest network is a point to point connection between two devices There is no need to use a complex protocol Required components Platforms deRFnode 2TNP2 00N00 Radio modules deRFmega128 22A00 Software Wireless UART based on Atmel s MAC Stack www dresden elektronik de Page 9 of 56 User Manual Version 1 3 2014 04 10 5 Technical data 5 1 Mechanical deRFnode and deRFgateway Table 4 Mechanical data Mechanical baseboard including radio module Size of PCBA L x W x H 69 x 75 x 30 mm 5 2 Operation conditions The recommended operating conditions are as follows External supply voltage Internal supply voltage Temperature 5 3 Electrical T 40 C to 85 C 5 3 1 Operational ranges VCC 5 0V 0 3V DC via AC DC converter USB or battery VCC 3 3V 0 3V DC Since the voltage regulators threshold is fixed to 3 3V DC operation is uncritical as long as input voltage is above 3 3V Below operation is not recommended since assembled compo nents MCU Flash EM
29. aneren enne eaten beten en bier venae ere deeg 32 8 3 LEDS And DUONG E 33 eg DOT LEDS pise ea e a Eaa EaP EE E EAE E aS 33 8 3 2 User UNO So eege eege 33 E ER EE 34 8 4 1 Native USB only for ARM based radio modules naan 34 8 4 2 USB serial for AVR based radio modules 34 E 36 SU tenet ates iat ace eee ee eres eect 37 BT E Ee 38 8 8 Current MG AS E 40 8 9 USB supply voltage Monitoring cscs de ieee agin nel 40 www dresden elektronik de Page 2 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway 8 10 Battery Supply voltage monitoring mrt dn itt 9 ASS E LES PONG eeste ee dateen enden leenen heei 10 1 Requirements AW HSV EE 10 2 Source code and compiler toolchain annen nennen eennnnnneeeeeneneennnnnnnnven 10 3 Programming and adapter selection annen eennennneeeeneneeennnnnnnnen 10 4 Software programming MOB 10 4 1 Enabling the reset supervisor ENNEN 10 4 2 Initialize and use TC devices ccccsccesccctsissccnssseseresseaseaseaseseeastnavenss 10 4 3 Using the USB interface AAA 10 4 4 Measuring the battery Voltage nnen 10 4 5 Accessing the external flash ene 10 4 6 Initialize and use the Ethernet transceiver nnn 10 4 7 Minimize device power CONSUMPTION nnen eneen 11 Ordering ele 12 Revision EES BEIENEE eegene teen E EE aE a a REAA EEEa ERE AER www dresden elektronik de Page 3 of 56 User Manual Versi Ke deRFnode and deRFgateway Document history
30. aspx 14 Atmel BitCloud ZigBee Pro http Awww atmel com tools bitcloud zigbeepro aspx 15 winavr version 20100110 http sourceforge net projects winavr files WinAVR 20100110 16 yagarto GNU arm toolchain http sourceforge net projects yagarto www dresden elektronik de Page 54 of 56 User Manual Versi Ke deRFnode and deRFgateway 17 yagarto tools http www emb4fun de download arm yagarto yagarto tools 20121018 setup exe 18 Atmel Studio http www atmel com tools atmelstudio aspx 19 User Manual Software Programming http www dresden elektronik de funktechnik service downloads documentation elD dam_frontend_push amp doclD 1917 20 AT91SAM7X 512 Software package for IAR 5 2 Keil and GNU revision 1 5 http Avww atmel com dyn resources prod_documents at91sam7x ek zip 21 deRFusb Driver http www dresden elektronik de funktechnik service downloads software elID dam_frontend_push amp doclD 2327 www dresden elektronik de Page 55 of 56 User Manual Versi Ke deRFnode and deRFgateway dresden elektronik ingenieurtechnik gmbh Enno Heidebroek StraBe 12 01237 Dresden GERMANY Phone 49 351 318500 Fax 49 351 31850 10 Email wireless dresden elektronik de Trademarks and acknowledgements e ZigBee is a registered trademark of the ZigBee Alliance e 802 15 4 is a trademark of the Institute of Electrical and Electronics Engineers IEEE All trademarks are registered by their respective
31. cceleration sensor LED LED3 and Button1 www dresden elektronik de Page 8 of 56 User Manual Versi Ke deRFnode and deRFgateway 4 Hardware selection examples The growing number of platform and radio module combinations makes it difficult and com plex for the customer to make the right choice of hardware depending on the customer ap plication The following section should give some examples for different applications 41 ZigBee sensor network with battery powered nodes Application A small network with three end devices nodes should measure and transmit the tempera ture sensor data every minute to one network coordinator master The coordinator is DC or USB powered all the time The nodes are battery powered and are sleeping all the time ex cept when they should measure and transmit the sensor data The sensor network protocol is based on the ZigBee Stack by Atmel Required components Platforms deRFnode 2TNP2 00NO00 Radio modules deRFmega128 22A00 Software based on BitCloud Atmel s ZigBee Stack Development Kit deRFdevelopmentkit ZigBee 2 4 GHz Order code BN 032515 Available at https shop dresden elektronik de 4 2 6LOWPAN tree network application Application A wireless network that can be monitored and controlled via Ethernet by Remote Access The nodes have their own unique MAC address and a user defined IP address They can be equipped with sensors and or actuators which read out sensor dat
32. deRFnode and deRFgateway 8 4 USB interface Regarding the USB interface the platforms deRFnode and deRFgateway come in two differ ent variants The deRFgateway USB interface can only be accessed over native USB of the ARM based dresden elektronik radio modules The deRFnode platform is offered in two vari ants One with native USB for deRFarm7 radio module and another variant with an USB se rial converter for deRFmega128 radio modules 8 4 1 Native USB only for ARM based radio modules The native USB interface is optimized for using the deRFgateway platforms together with deRFarm7 radio modules which contain a SAM7X512 microcontroller with an implemented native USB interface All necessary external parts for USB communication are placed on the deRFgateway USBDM Pin 4 USBDP Pin 32 vaus DGND A Ha 1K50 e 15pF Cem A USBDM ARM e Lbnr Ping SS ARM SE ee eel Te B32 4 H 1 Lag R33 f R34 place pads directly on usb Ras ps c20 Sol p data lines to avoid stubs in aaok Joan RES H i eh elt H i DGND GND DGND f d E E See eater USBOM AVR Figure 18 Native USB interface 8 4 2 USB serial for AVR based radio modules The serial USB interface is a variant of the deRFnode platform The communication is real ized by the transceiver circuit FT245RL 6 and the level shifter circuits TXB0108 7 Following USB data lines are used USB
33. dresden elektronik e User Manual deRFnode deRFgateway Document Version V1 3 2014 04 10 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway e Table of contents We oC TEE 6 2 PRONG AN E 6 Ov E 6 3 1 BIOGEN 7 3 2 Hardware selection table 7 3 3 Eeer 8 4 Hardware selection examples c ic cccccccccsceecsacetcenteceeressaensseatteenseteccassceneencedesendacettessenerae 9 4 1 ZigBee sensor network with battery powered nodes nanne 9 4 2 GBLOWPAN tree network application EEN 9 4 3 Point to Point connection for simple applications nnnnnnnnnneeen eenen 9 De Technical E 10 E EE Re re eee ee eee 10 5 2 Operation aere 10 5 3 El E 10 E el Rn e S aren nne dal kee 10 5 3 2 Current Consumption aecdsccciecuscssindvectpenctnetnterniaceonrbesanieveanieednoeeeiermnaaescpenes 11 5 3 2 1 DC powered EE 11 5 3 2 2 Battery powered variable voltage nnen 11 5 3 2 3 USB powered E 11 E e Eege E te 13 7 PISSEN etende 15 7 1 Radio module IME AGE nen ennerererenenrerertren der dien bree seiacencmreamtenniarccan Snes 15 7 2 ETGEN 20 T JTAG ARM eneen a eps ee eee eneen 21 ZA JTAG fo AVR eer rn ree ere e ee ee ee 22 7 5 User g 22 012 eee ee eee er ae ee eee ere nennen 22 7 6 Jumper configuration eege 29 8 Board ME 30 8 1 EES 31 8 1 1 Temperature sensor ENEE 31 8 1 2 Ambient light sensor ANEN 31 8 1 3 Acceleration SEASON arseen eeeh 32 8 2 Onboard Data lacy ms s
34. e 2 lectable with jumper JP3 16 Pin13 PB1 SCK PCINT1 Flash Flash 17 Pin36 PF1 ADC1 USB voltage monitoring 18 Pin12 PD5 XCK1 Free Serial USB 19 Pin37 PE6 T3 INT6 Free Serial USB 20 Pin4 PG1 DIG1 Not available Free 21 Pin39 PE7 ICP3 CLKO INT7 Free Serial USB 22 Pin32 PD4 ICP1 Not available Free 23 Pin41 PF2 ADC2 Free Serial USB 24 Pin11 PD7 TO Interrupt output of acceleration sen sor or button SW2 selectable with jumper JP1 www dresden elektronik de Page 23 of 56 User Manual Ee deRFnode and deRFgateway e Header Signal Function deRF deRF deRF pin name deRFmega128 gateway node 1TNP2 node 2TNP2 deRFmega256 1TNP2 25 Pin10 PD3 TXD1 INT3 Free Serial USB 26 Pin9 PD1 SDA INT1 Acceleration temperature and lumi nosity sensor 27 Ping PG5 OCOB LED1 LED1 28 Pin7 PDO SCL INTO E Acceleration temperature and lumi S nosity sensor 29 Pin6 PG2 E Free Serial USB O 30 Pin5 RSTN D Reset 31 Pin20 PB7 OC0A OC1C PCINT7 5 Button SW1 selectable with jumper JP6 32 Pin3 AREF Analog reference voltage 33 VCC 34 GND Table 17 User interface header pin assignment for plugged deRFarm7 Pin assignment Internal use Header Signal Function deRF deRF deRF pin name deRFarm7 gateway 1TNP2 node 1TNP2 node 2TNP2 1 GND 2 VCC 3 SW2 Used Used
35. e 1 Pin38 TCK 2 GND 3 Pin42 TDO 4 VCC 5 Pin40 TMS 6 Pin5 RSTN 7 VCC 8 N C 9 Pin44 TDI 10 GND 7 5 User Interface The User Interface header provides access to a series of IO port pins VG IO HEADER Figure 10 User header www dresden elektronik de Page 22 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway The following tables show the signal description The internal use shows if a signal on user interface is still used by internal peripherals or free usable Table 16 User interface header pin assignment for plugged deRFmega128 and deRFmega256 Pin assignment Internal use Header Signal Function deRF deRF deRF pin name deRFmega128 gateway node 1TNP2 node 2TNP2 deRFmega256 1TNP2 1 GND 2 VCC 3 SW2 Button SW2 4 Pin21 PB5 OC1A PCINT5 Free Serial USB 5 Pin27 PD2 RXD1 INT2 Free Serial USB 6 Pin19 PB4 OC2 PCINT4 Free Serial USB 7 Pin30 PE2 XCKO AINO Free Serial USB 8 Pin17 PB3 MISO PCINT3 PDO Flash Flash 9 Pin31 PE3 OC3A AIN1 LED2 LED2 10 Pin16 PBO SSN PCINTO Free Serial USB 11 Pin18 PB6 OC1B PCINT6 Free Serial USB 12 Pin15 PB2 MOSI PCINT2 PDI 8 Flash Flash 13 Pin33 PE4 OC3B INT4 z LED3 LED3 14 Pin14 CLKI 8 Clock Input 15 Pin34 PFO ADCO Battery voltage monitoring s
36. ed in the respective datasheets 4 5 SPI clock Pin 13 MOSI Pin 15 MISO Pin 17 SPI Select Pin 35 AT25DF041A SSHF DGND or M25P40 VMN6TPB www dresden elektronik de Page 32 of 56 User Manual Versi Ke deRFnode and deRFgateway 8 3 LEDs and buttons The deRFnode and deRFgateway boards comprise three LEDs and two buttons each user defined controllable 8 3 1 User LEDs The three red LEDs are active low and may be controlled by the radio module MCU LED1 D1 Pin8 LED2 D2 Pin 31 LED3 D3 Pin 33 VCC Neu Figure 16 User LEDs 8 3 2 User buttons The active low buttons could be used for user defined inputs The button SW1 is controlled by two different pins which are connected by assembling the 0 ohms resistor R68 or R69 The placement depends on the platform and is the result of the support of different radio modules The concerning pin of button 1 is used by the ARM based dresden elektronik radio module to support the Ethernet interface The pin of button 2 can only be used if the inter rupt feature of the acceleration sensor BMA150 is disabled Button 1 SW1 on deRFnode Pin 20 Button 1 SW1 on deRFgateway Pin 14 Button 2 SW2 Pin 29 by setting jumper JP1 to pin 1 and 2 for AVR SWI n b _Ein20 R68 and R69 share pad Taster SW2 X11 DERD Taster swe2 EN Sw Extension Figure 17 User buttons www dresden elektronik de Page 33 of 56 User Manual Versi Kee
37. ggling RD from H to L then get the state on all 8 data lines and put RD back to H level Writing bytes is performed vice versa First check the level on TXE If it is H the transceiver is busy or the internal buffer is full Otherwise the transmission may start by setting the 8 data lines according to the transmit byte then toggle WR from H to L and back To improve per formance writing should always be done block wise The octal bus driver is automatically enabled by the internal USB_CE signal if at least one of the RD or WR goes L means reception transmission in progress On the other side you should ensure that RD and WR are permanently driven H if you do not use the USB over FDTI to prevent the bus driver energizing back the FT DI circuit For simplified detecting whether a USB cable is plugged or not the VBUS signal may be used active high On the FTDI variant this only works reliable if RD and WR are driven H The device driver required on the PC side can be downloaded from the dresden elektronik website 21 If you bought a dresden elektronik deRFdevelopment Kit the included kit CD also provides the drivers and complete application examples which may be easily modified according to your needs 10 4 4 Measuring the battery voltage The VBAT signal may be used to monitor the current battery voltage using the MCUs internal A D converter This requires a reference voltage On ARM MCUs it must be provided exter nally on Pin3 w
38. hannel AT91C BASE ADC StartConversion AT91C BASE ADC wait for conversion termin while ADC IsChannelInterruptStatusSet ADC GetStat perform measurement ade out Li L L V Dat convert the measured value voltage divider lt gt V bat max lt gt V_bat 15 24 adc_out 61 meas 4 ADC ADC_CHANNEL ation ADC CHANNEL 0 T to real voltage 4 73 V_meas 61 V_ meas 4 deactivate the ADC for power saving _ADC ADC CHANNEL 0 ADC DisableChannel AT91C BASE www dresden elektronik de ADC_GetConvertedData AT91C_ BASE ADC ADC CHANNEL mV resolution 10bit V_ref 3 3V lt gt V_ref 0x3FF us AT91C BASE ADC D V_meas adc_out For AVR MCUs an equivalent code snippet is define VREF 1 6 reference voltage either 1 6 or 3 3 V uint16 t ade val ADC measurement value double v bat real battery voltage double c conversion factor c double 1040 double 220 VREF if VREF 1 6 Select internal 1 6V reference voltage left AVDREF pin open ADMUX 1 lt lt REFS1 1 lt lt REFSO else External reference voltage on AVDREF pin selected by default endif Analog channel 0 and gain selection none lt gt MUX5 0 0b00000 gt no changes required select prescaler for 500 kHz frequency if F CPU 16000000UL ADCSRA 1 lt
39. hich is available on the X8 Header at Pin 32 It is suggested to shortcut it to VCC which is available on the same Header on Pins 2 and 33 Basically AVR MCUs can handle external reference voltages too but we recommend using the internal reference volt age since it avoids additional external shortcut connections and enables a more precise measurement However in both cases during measurement the GPIO Pin 34 e g on X8 Header Pin 15 must not be used otherwise The measurement process includes 1 Initialization of the ADC 2 activation of the required ADC channel 0 3 perform the measurement 4 shut down the ADC For ARM MCUs in peripherals adc adc c the required library functions are to be found and their invocation sequence may look like define BOARD ADC FREQ 300000 ADC Frequency define ADC STARTUP TIME MAX 20 returning from Idle mode us define ADC TRACK HOLD TIME MIN 600 Track amp hold Acquisition Time ns unsigned int adc out V bat const Pin pin 1 lt lt 27 AT91C_ BASE PIOB AT91C_ID PIOB PIO INPUT PIO DEFAULT www dresden elektronik de Page 45 of 56 User Manua Ee deRFnode and deRFgateway PIO Configure pin rz ADC_Initialize AT91C_BASE ADC AT91C ID ADC AT91C ADC TRGEN DIS 0 AT91C_ ADC SLEEP NORMAL MODE AT91C ADC LOWRES 10 BIT BOARD MCK BOARD ADC FREQ ADC STARTUP TIME MAX 2 ADC TRACK HOLD TIME MIN ADC EnableC
40. ightly different On AVR MCUs use include lt avr wdt h gt wdt_disable respective WD_Disable from peripheral wdt wd c on ARM MCUs If using native USB on ARM MCUs the USB transceiver is disabled by invoking UDP DisableTransceiver from usb device core USBD UDP c 10 Disable BOD Slight improvements may be achieved by disabling the Brown out detection feature On ARM MCUs the GPNVM Bit0 has to be cleared by writing to the internal flash memory EFC PerformCommand AT91C BASE EFCO AT91C MC FCMD CLR GP NVM AT91C MC GPNVMO On AVR MCUs this is done by clearing the BODLEVEL bits 2 0 in the Fuse Low Byte 11 Slow down the MCU clock This differs depending on the radio module used When it is deRFmega128 series based simply put the MCU to sleep mode by writing to the sleep mode control register followed by executing the sleep instruction include lt avr io h gt MCU register definitions include lt avr sleep h gt SMCR 1 lt lt SE 1 lt lt SM1 go into power down mode sleep cpu execute sleep instruction If using an ARM based MCU the AT91Lib usb device massstorage project example pro vides functions for switching the MCU main clock back to 32kHz For waking up the device again you may e g leave a timer running or configure a exter nal interrupt trigger The steps to be performed after wakeup include simplified the re verse procedure as described above especially re
41. imized for radio modules plain variant deRFarm7 series deRFsam3 series deRFmega128 series deRFmega256 series deRFarm7 series www dresden elektronik de Page 7 of 56 User Manual Versi Ke deRFnode and deRFgateway Every variant is specifiable by a type code which contains important key features of the plat form Table 2 describes this code Table 2 Type code description Hardware selection table deRFnode 1x x x x tx x x x x x deRFgateway 1x x x x tx x x x x x platform properties Native USB 2 USB over FTDI T THT N None no delivered radio module P Plain only PCBA 2 Revision 2 0 0 N 0 0 w o radio module 3 3 Feature list This section gives an overview of the supported radio modules and features in combination with deRFnode and deRFgateway Table 3 Feature list x full support o limited support Platform Radio module a Supported features LEDs and Buttons Native USB Serial USB Serial Flash USB powered Low Power LDO Ethernet er Il 1TNP2 00N00 eptard Series x x x x x deRFsams Series Lal jojo x px x x px x 2TNP2 00N00 deRFmegaize Series x _ x x deRFmega2s6 Sees x x x x deRFgateway Jl msn aeRFarn7 Series Ia x x x x x _ The radio modules of deRFsam3 Series do not support the onboard a
42. initialization of internal devices that have been powered down If you bought a deRFdevelopment kit the Kit CD includes a deRFnative example which demonstrates low power modes www dresden elektronik de Page 51 of 56 User Manual Versi Ke deRFnode and deRFgateway 11 Ordering information The ordering code for deRFnode and deRFgateway are listed in Table 24 Table 24 Ordering information plain variant no radio module included deRFnode 1TNP2 00NO00 BN 031632 deRFnode 2TNP2 00NO00 BN 031634 deRFgateway 1 TNP2 00N00 BN 031633 accessories deRFcase node BN 030043 deRFcase gateway BN 030046 deRFcase node with external SMA female BN 032770 antenna connector deRFcase gateway with external SMA female BN 032771 antenna connector Note The deRFcase variants do not contain any platforms or radio modules These components must be ordered separately www dresden elektronik de Page 52 of 56 User Manual Versi Ke deRFnode and deRFgateway 12 Revision notes 1 When using PA modules together with deRFnode 2TNP2 00NO0 the reset supervisor might unintentionally reset the module when sending frames at high transmit power De crease the transmit power transceiver register TX_PWR set to a OxA or higher or re move JP4 to avoid 2 Due to discontinuation of Atmel s Flash series recent versions of the deRFnode gateway boards are equipped with a Micron M25P40 dataflash Both command sets are pretty similar refer to
43. irmware binary files In any other case or if you like to build custom firmware source code files and a suitable compiler toolchain are required additionally A good starting point for developing wireless software are the Atmel IEEE 802 15 4 MAC Software Package 13 or the Atmel bitcloud 14 Our Kit CD already provides the plat form adaptions necessary to operate these protocol stacks with your target hardware As compiler toolchain we suggest to use gcc When working with an AVR MCU the versions needed are avr gcc respective arm none eabi gcc for ARM based MCUs Basically the IAR compiler may also be used but is not supported by dresden elektronik Avr gcc is in cluded within the winavr package 15 arm none eabi gcc comes with the yagarto compiler package 16 and is extended by the yagarto tools 17 Avr gcc is also part of Atmel Studio 18 Supported versions of both are available on our Kit CD When downloading explicitly pay attention to use the version stated since newer releases may cause problems and are un supported 10 3 Programming and adapter selection Please refer to our User Manual Software Programming 19 regarding suitable program mers and the programming procedure 10 4 Software programming model This chapter is designated to describe how selected components of the deRFnode gateway baseboard series may be accessed from a developer s point of view As stated in the previ ous chapters we
44. ive to lt extraction root directory gt at9lsam7x ek packages lt common example directory gt at91lib 10 4 1 Enabling the reset supervisor As already described in chapter 3 the reset supervisors output pin is routed to the MCUs re set pin if JP 4 is shortcut When using an AVR MCU no further configuration is required But when using an ARM MCU the reset pin functionality must be explicitly enabled The required library module is peripherals rstc rstc c an invocation of RSTC_SetUserResetEnable may be used to enable or disable it 10 4 2 Initialize and use IC devices All of the deRFnode gatewa y boards include three environmental sensors which are acces sible via the two wire aka I C Interface TWI To use them you basically have to perform the following steps 1 enable the TWI bus 2 make the MCU the TWI master 3 configure the devices behavior and 4 communicate with the device The first step is only necessary if you use deRFmega128 based radio modules Here you explicitly have to enable the both pull up s on the SDA SCL lines by setting PD6 to Low level DDRD 1 lt lt PD6 make PD6 an output pin PORTD amp 1 lt lt PD6 switch to Low level The second step is quite simple since there already exist ready to use functions On AVR MCUs you may use Peter Fleury s library or its improved version from Manfred Langemann ask your favourite search engine On ARM the AT91Lib provides equiva
45. lent functionality under drivers twi and peripherals twi Independently of the implementation you usually must decide for a interface speed 100 up to 400kHz is a good value TWI libraries may either run interrupt driven or in polling mode The latter case is sufficient for first tests while if using the IC interface excessively interrupt based implementations should be pre ferred Assumed that you use an ARM MCU the initialization might look like define PINS TWI 1 lt lt 10 1 lt lt 11 AT91C BASE PIOA AT91C ID PIOA PIO PERIPH A PIO DEFAULT static Twid twid managing datastructure const Pin pins PINS TWI SDA SCL pins PA10 PA11 PIO Configure pins PIO LISTSIZE pins PMC EnablePeripheral AT91C_ID TWI enable twi peripheral TWI_ConfigureMaster AT91C_ BASE TWI 100000 BOARD MCK 100kHz TWID Initialize amp twid AT91C_ BASE TWI initialize datastructure AIC _ConfigureIT AT91C ID TWI 0 ISR Twi configure and AIC EnableIT AT91C ID TWI enable twi interrupt During the next step the devices are configured This includes activity intervals resolution sensitivity triggers when exceeding falling below given limits etc Usually the sensors power up idle and must be explicitly started Additionally the acceleration sensor includes a configu ration EEPROM in which an overriding startup configuration may be saved Configuration is usually done by writing t
46. my write for initiating SPI read SPDR SPI DUMMY VALUE wait for termination while SPSR amp 1 lt lt SPIF Upload the received byte in the user provided location data i SPDR Stop the SPI transaction by setting CS high PORTE 1 lt lt PE5 check the read Ids must be Ox1F 0x44 0x01 0x00 www dresden elektronik de Page 48 of 56 User Manual Versi Ke deRFnode and deRFgateway As like as in all previous chapters a ready to use library is provided on the CD ROM belong ing to the deRFdevelopment Kit 10 4 6 Initialize and use the Ethernet transceiver Only the deRFgateway boards are equipped with Ethernet circuitry hardware PHY layer transceiver The EMAC must be implemented in software Although it is not impossible to do this with an AVR we focus on using it with an ARM MCU here since as like as in all chapters before the AT91Lib already provides this functionality Transceiver and MCU are connected via RMII Reduced Media Independent Interface To save energy the Ethernet transceiver starts up in power down mode pull down resistor on transceiver pin 7 Alternatively the same port pin may act as an interrupt line Due to a pull down resistor this is not possible in factory state If you intend to use it please remove R13 The Ethernet initialization procedure consists of 1 Setup the EMAC enable the EMAC peripheral configure the PIO pins and the
47. o device registers and incorporates 1 initiate a TWI start condition www dresden elektronik de Page 43 of 56 User Manual Versi Ke deRFnode and deRFgateway 2 write the configuration register address 3 write the configuration register value 4 send a TWI stop condition So if you i e want to activate the TMP102 temperature sensor measuring temperatures only upon request select the configuration register MSB 0x01 and write in 0x80 to shut down the device Here TWID Write encapsulates all the required steps in one function define BOARD SENS ADDR TEMP 0x48 sensor address lbit shifted unsigned char ucBuf 2 buffer for twi transmissions ucBuf 0 0x01 configuration register MSB ucBuf 1 0x80 shutdown mode TWID Write amp twid BOARD SENS ADDR TEMP 0x00 0x00 ucBuf 0x02 NULL As like as configuration is performed sensor values are read from device registers Depend ing on the device you may either read the current register value directly or must send a start command first and wait a certain time until measurement is available otherwise you would read outdated values To continue with the temperature sensor a code snippet looks like ucBuf 0 0x01 configuration register MSB ucBuf 1 0x81 shutdown mode one shot TWID Write amp twid BOARD SENS ADDR TEMP 0x00 0x00 ucBuf 0x02 NULL wait at least 26 ms depends on selected resolution then
48. rd USB is non functional When incorporating the USB FIFO 12 GPIO 8 data 4 control lines are reserved AND OR gates and an octal driver equalize level differences Besides other applications of the USB interface we focus only on a Communication Device Class CDC device here which simplified is a RS232 port tunneled over USB providing a virtual COM Port on the PC side For native USB with ARM MCUs again the AT91Lib provides ready to use functions which are to be found in usb device core USBD UDP c and usb device cdc serial CDCDSerial Driver c A typical initialization looks like CDCDSerialDriver Initialize initializes the CDC driver www dresden elektronik de Page 44 of 56 User Manual Versi Ke deRFnode and deRFgateway USBD_Connect connects external Pullup to USBDP Afterwards data could be shared with the device driver with CDCDSerialDriver Read and CDCDSerialDriver Write i e in your applications main loop When working with FTDI the chip encapsulates the USB protocol The only interface are the control RD WR RXF TXE and data lines Here the initialization procedure consists of 1 switching RD and WR to output pins internal pull up s enabled 2 set RXF TXE and data lines as input pins 3 optionally empty USB FIFO buffer by performing dummy reads Data bytes available for reading are signalized by RXF being L as long as the buffer is not completely empty A byte can be read by to
49. re 6 Header for radio modules www dresden elektronik de Page 15 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway The next two tables give an overview of the radio module signals Table 9 shows the header pins signal names and MCU ports of the deRFmega128 and deRFmega256 radio module series of dresden elektronik Table 10 for the deRFarm7 radio module series Table 11 for deRFsam3 radio module series and Table 12 only for deRFsam3 23T02 3R and deRFsam3 23T09 3R Table 9 Pin assignment for deRFmega128 series and deRFmega256 series Pin assignment Header Signal uC Port Header Signal uC Port pin name deRFmega128 256 pin name deRFmega128 256 1 VCC 24 VCC 2 GND 25 GND 3 Pin3 AREF 26 Pin26 PEO RXDO PCINT8 4 Pin4 PG1 DI1 27 Pin27 PD2 RXD1 INT2 5 Pin5 RSTN 28 Pin28 PE1 TXDO 6 Pin6 PG2 29 Pin29 PD6 T1 7 Pin7 PDO SCL INTO 30 Pin30 PE2 XCKO AINO 8 Pin8 PG5 OCOB 31 Pin31 PE3 OC3A AIN1 9 Pin9 PD1 SDA INT1 32 Pin32 PD4 ICP1 10 Pin10 PD3 TXD1 INT3 33 Pin33 PE4 OC3B INT4 11 Pin11 PD7 TO 34 Pin34 PFO ADCO 12 Pin12 PD5 XCK1 35 Pin35 PE5 OC3C INT5 13 Pin13 PB1 SCK PCINT1 36 Pin36 PF1 ADC1 14 Pin14 CLKI 37 Pin37 PE6 T3 INT6 15 Pin15 PB2 MOSI PCINT2 PDI 38 Pin38 PF4 ADC4 TCK 16 Pin16 PBO SSN PCINTO 39 Pin39 PE7 ICP3 CLKO INT7 17 Pin17 PB3 MISO PCINT3 PDO 40 Pin40 PF5 ADC5 TMS 18 Pin18 PB6 OC1B PCINT6 41 Pin41
50. re that the MCU GPIO pins do not drive current Due to circuit design some GPIO pins are set to GND others have external pull up s or pull downs applied which are required for proper operation but when sleeping they still www dresden elektronik de Page 50 of 56 User Manual Versi Ke deRFnode and deRFgateway drive unnecessary current Regardless of the used MCU this may be achieved by first setting the pins to be outputs internal pull up s enabled Then read back the level on each pin if it differs from the expected state being H due to enabled pull up s disable individual pull up s Be careful to leave out the Pins connected to the transceiver or the USB FIFO as otherwise you would reactivate the devices powered down before see above Wel lt Disable any unnecessary MCU internal device This includes running timers transceivers UART DBGU TWI SPI native USB ADC watchdog On AVR MCUs this may be achieved by writing to the Power Reduction Registers like include lt avr power h gt PRRO 1 lt lt PRTIMO disable Timer 0 or using existing functions from power h such as power timerl disable On ARM MCUs the equivalent function call is PMC_DisablePeripheral id from pe ripheral pmc pmc c where the peripheral Ids are to be found in the At91SAM7X datasheet If you desire to switch off all devices at once PMC DisableAllPeripherals will do that The watchdog is configured sl
51. rocontroller of the radio module Details of operation are described in the datasheet 1 TWI address 1001 000 R W Write R W 0 Read R W 1 IC7 Pin7 Ping Figure 13 Temperature sensor TMP102AIDRLT 8 1 2 Ambient light sensor The assembled ambient light sensor ISL29020IROZ T7 communicates over two wire interface with the microcontroller of the radio module Details of operation are described in the datasheet 2 TWI address 1000 100 R W Write R W 0 Read R W 1 VCC C26 A SDA VDD SCL REXT AO GND Figure 14 Ambient light sensor ISL29020IROZ T7 www dresden elektronik de Page 31 of 56 User Manual Versi Ke deRFnode and deRFgateway 8 1 3 Acceleration sensor The acceleration sensor BMA150 communicates over two wire interface with the microcon troller of the radio module Details of operation are described in the datasheet 3 The interrupt output of BMA150 could be connected with Pin 11 by setting the jumper JP1 pins 2 and 3 TWI address 0111 000 R W Write R W 0 Read R W 1 Figure 15 Acceleration sensor BMA150 8 2 Onboard Dataflash The onboard dataflash communicates over the SPI interface with the microcontroller of the radio module It can be used to persistently store custom data or to buffer firmware images when performing Over the Air Updates Older boards used Atmels AT25DF041 recent ver sions come with Micron M25P40 Details of operation are describ
52. sed dresden elektronik radio modules Full Speed USB and 10 100 Mb s Ethernet interface JTAG interface for AVR or ARM Serial debug interface Onboard Sensors acceleration temperature and luminosity Onboard 4Mbit Serial Flash Power Supply over USB battery and 5V DC Plug possible 2x buttons and 3x LEDs free programmable User interface with all important signals 2x17 pins connector Switchable reset supervisor Triggers on Vcc lt 2 4V deRFnode for AVR respective on Vcc lt 3 0V deRFnode and deRFgateway for ARM CE for deRFnode CE pending for deRFgateway The deRFgateway is intended for laboratory development demonstration or evalua tion purposes only www dresden elektronik de Page 6 of 56 User Manual Version 1 Kee deRFnode and deRFgateway 3 1 Block diagram 2x 3x SW LED GPIO UART SPI REE Full Speed optionally only on deRFnode series with AVR otherwise included in MCU 7 10 100 Mb s on deRF gateway only Figure 1 block diagram deRFnode deRFgateway series 3 2 Hardware selection table From the electrical view all deRF radio modules may be combined with all deRFnode and deRFgateway baseboards However not every peripheral available on the baseboard is us able or accessible by the radio module due to routing constraints respective missing MCU features All supported radio module platforms and variants are listed in Table 1 Table 1 Available board and radio module combinations Type code opt
53. select temperature register MSB and read 2 bytes from it ucBuf 0 0x00 TWID Write stwid BOARD SENS ADDR TEMP 0x00 0x00 ucBuf 0x01 NULL TWID Read amp twid BOARD SENS ADDR TEMP 0x00 0x00 ucBuf 0x02 NULL convert value to a human readable format Besides the TC communication lines the acceleration sensor includes an interrupt line which may trigger under certain circumstances i e acceleration increases above decreases be low changes relatively to a configured threshold These features might be used to detect the device falling or its motion at all For all these cases the sensor might drive its INT line high as long as the condition is met For detailed information please refer to the BMA150 datasheet Using this feature requires JP1 to shortcut pins 2 3 and configuration of an inter rupt trigger on the MCU side If you own a dresden elektronik deRFdevelopment Kit the included kit CD provides a com plete FC library as well as out of the box working application examples for AVR and ARM which may be easily modified according to your needs 10 4 3 Using the USB interface The onboard USB interface is realized either native on deRFnode gateway for ARM or based on a FTDI USB to parallel FIFO on deRFnode gateway for AVR In USB speech native means the MCU is able to talk directly to the USB DM DP lines which is true for ARM MCUs but not for AVRs So if using an AVR MCU on a ARM baseboa
54. teway e Header Signal Function deRF deRF deRF pin name deRFsam3 gateway node 1TNP2 node 1TNP2 2TNP2 17 Pin36 PA19 RK PWMLO AD2 USB voltage monitoring 18 Pin12 NC NC 19 Pin37 NC NC 20 Pin4 PB10 DDM Native USB 21 Pin39 NC NC 22 Pin32 PB11 DDP Native USB 23 Pin41 PA20 RF PWML1 AD3 Free 24 Pin11 NC NC 8 3 25 Pin10 PB3 UTXD1 PCK2 AD7 E Free E 26 Pin9 PB4 TDI TWD1 PWMH2 z Acceleration temperature and z S luminosity sensor E O O 2 2 27 _ Pin8 NC 8 INC 5 28 Pin7 PB5 TDO TWCK1 PWMLO Acceleration temperature and luminosity sensor 29 Pin6 PA7 RTSO PWMH3 XIN32 Free 30 Pin5 RSTN Reset 31 Pin20 PAO PWMHO0 TIOAO Free 32 Pin3 ADVREF Analog reference voltage 33 VCC 34 GND www dresden elektronik de Page 28 of 56 User Manual Versi Ke deRFnode and deRFgateway 7 6 Jumper configuration The following table shows the possible jumper configurations Table 20 Jumper configuration Pin assignment JP Function 1 GPIO Input diversity SW2 if pins 1 2 closed acceleration sensor interrupt output pin if pins 2 3 closed free usable pin on user interface connector if left open Power Supply Selection Battery or DC USB VBAT Monitor closed enabled Reset Supervisor closed enabled Current measurement of radio module AA WN Button 1 routing depending on radio module ARM or AVR JP5 JP 6 JP3 JP 1 JP 4
55. www dresden elektronik de Page 11 of 56 User Manual Versi Kee deRFnode and deRFgateway Table 7 HW Setup 2 Hardware setup Condition Vuss 5VDC Working Sleep Idle Typ Max deRFgateway 1 TNP2 00N00 deRFarm7 24mA 97mMA 166mA lt 200mA deRFnode 1TNP2 00NO0 deRFarm7 250A 37mA 41mA lt 85mA deRFnode 2TNP2 00N00 deRFarm7 14mA 45mA 49mA lt 85mA deRFnode 2TNP2 00NO0 deRFmega128 12mA 20mA 30mA lt 50mA peripherals and MCU put to sleep as far as possible all peripheral initialized but not accessed typical application scenario sensors accessed once each second Transceiver off theoretical value every onboard peripheral accessed Ethernet cable not plugged 8 Ethernet cable plugged 100Mbps Link established www dresden elektronik de Page 12 of 56 User Manual Version 1 3 2014 04 10 deRFnode and deRFgateway e 6 Overview of platforms O O SC CECH ON EED PEET e x ba 8 U U U UR U U U UE HH U LL pr X LOOC VOCO I OVO OOO K 6 X L RRC NR PU UT L T Figure 2 Overlay of deRFnode and deRFgateway Table 8 Overview headers Header Name Description X1 Radio module interface 2x23 Pin Radio module header only available for plugga x2 ble platform variant X3 3 Pin Button extension only available for case variant

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