UDPSDR-HF1 User`s Manual - Zephyr Engineering, Inc
Contents
1. Power In Power is supplied to the receiver in one of three ways listed in most to least desirable order USB J3 or J2 The combination SDRstick HF1 requires 5VDC at about 400mA J3 and J2 are equivalent since they are in parallel J3 mates with a 2 35mm x 0 7mm barrel plug CUI part PP 012 Digi Key part CP 012 ND J2 is provided for either a two pin SMT header TE part 3 647166 2 Digi Key part A113590 ND or just pads for soldering wire leads The center pin of J3 is positive J2 pin 1 is positive and is marked with a white dot adjacent to the pad See Figure 3 for details USB 2 0 or USB 3 0 ports can power the SDRstick HF1 Center Pin 5VDC 400mA 2 35mm x 0 70mm GND Pin 2 5VDC Pin 1 Figure 3 Power Connector Detail UDPSDR HF1 User s Manual 2 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc NOTE In order to use the USB port for power the Altera USB Blaster driver must be loaded onto the PC The BeMicroSDK will not even turn on until this driver is properly installed No driver is required to power the receiver from J3 or J2 See the Quick Start Guide WARNING NEVER APPLY EXTERNAL POWER TO J3 or J2 WHILE PLUGGED INTO ANY USB PORT THIS CAN DAMAGE YOUR USB PORT 1 1 1 3 J4 RF Input The receiver RF input is connected to J4 a standard SMA jack J4 may be connected directly to a 50 ohm antenna 1 1 1 4 J5 Phones Out optional Plug headpho2. Connect the BeMicroSDK Ethernet port either directly to a PC network port or to a LAN through a 100Mbps switch Even though the port hardware supports 10Mbps and 100Mbps a 100Mbps connection is required for proper operation Even at the lowest sample rate 10Mbps Ethernet has insufficient bandwidth to support this receiver 3 4 3 QS4d Power Either plug the BeMicroSDK into a USB 2 0 or USB 3 0 port or connect a power supply to The BeMicroSDK and UDPSDR HF1 combination requires about 400mA at 5VDC to operate properly While the best way to supply power is through connector J3 you may also supply power through the USB connector Since the BeMicroSDK negotiates for power over the USB port before it turns on you cannot use a USB charger to power SDRstick HF1 regardless of its current capacity UDPSDR HF1 User s Manual 14 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc Note Clean power is especially important given the high sensitivity of this receiver USB power is not noted for its purity If you experience excessive receiver noise while on USB power especially at lower frequencies consider using a well filtered external power supply instead WARNING NEVER APPLY EXTERNAL POWER TO J3 P1 WHILE PLUGGED INTO ANY USB PORT THIS CAN DAMAGE YOUR USB PORT 3 5 Step QS5 Install and Run GUI Software Tutorials on SDR GUI software are beyond the scope of this manual but here are some quick links and ti
3. directory Extract the files form this gzip archive into a directory of your choice Follow the directions in the extracted Readme txt file to install the GNURadio SDRstickTM sourceblock and an example GRC flowgraph The contents of the Readme txt file are reproduced in Figure 9 for your convenience Uncompress in directory of your choice cd gr sdrstick mkdir build cd build cmake make sudo make install sudo ldconfig Figure 9 GNURadio Sourceblock Installation Readme txt File Start gnuradio companion and open the example flowgraph using lt file gt lt open gt The flowgraph is named sdrstick_am_rx grc and is located in the gr sdrstick apps directory UDPSDR HF1 User s Manual 17 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc 4 Troubleshooting Some of the more common problems and their solutions are outlined in the following sections If you are still stuck after reading through this chapter please log onto the SDRstick Yahoo group and ask for help To subscribe to the group go to http groups yahoo com groups SDRstick 4 1 PATH variable incorrectly set Symptom SDRstick Programmer appears to run but the several windows just momentarily flash up on the screen and the BeMicroSDK does not get programmed Cause SDRstick Programmer cannot find the software components it needs to program the BeMicroSDK files Solution If Quartus II Web Edition is
4. e Receive audio is delivered via the PCs sound system 3 Detailed Operation The sections of this chapter contain or provide links to detailed information on each step necessary to successfully set up the SDRstick HF1 Software Defined Receiver It is beyond the scope of this document to cover operating system specific procedures that are necessary to set up the receiver It is assumed that the user is capable of performing the tasks in the following list Please consult your PC and or operating system documentation or use on line searches to become comfortable with these procedures UDPSDR HF1 User s Manual 8 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc Install applications Check system information and update hardware drivers Enable disable both wired and wireless network ports Change PC IP address and network mask Enable and disable PC DHCP client Use console to check IP address and ping network devices Check set environment variables using the system properties dialog box Navigate PC file system to copy and move files 3 1 Step QS1 Download and Install Programming Software The design and programming software for the BeMicroSDK is available for free download from the Internet Note that this software is different from the SDR GUI software that is used to operate the radio We will cover that in section 3 5 There are four components to this support software Which of the four components you need
5. Run the installer and follow the instructions To un install run the installer again and select the uninstall option 3 2 Step QS2 Install USB Blaster Driver The USB Blaster driver is included in the Quartus Il Web Edition and Quartus II Programmer software Once you have installed one of those two applications plug the BeMicroSDK without the HF1 attached into a USB port Cancel the windows installation of the driver and go to the device manager Find the USB Blaster entry in the table it will have a yellow next to it and update the driver for it Point the updater to the drivers typically in the lt C altera 13 0 quartus drivers gt for version 13 0 The system variable QUARTUS ROOTDIR should contain the path to the directory containing the drivers directory Once the USB Blaster driver is properly installed the power LED should light on the BeMicroSDK UDPSDR HF1 User s Manual 11 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc NOTE The USB Blaster driver is not available as a separate download If you intend to power your SDRstick from the USB port you must download and install either the Quartus II Web Edition or the Quartus Il Programmer software 3 3 Step QS3 Program BeMicroSDK SDRstick Programmer is used for two functions The first function is to create a User Flash Block file The second function is to program FLASH format files into the BeMicroSDK configuration
6. User LEDs 1 2 3 BeMicroSDK Switches There are five switches on the BeMicroSDK three push button switches and two slide switches See Figure 7 for switch locations 1 2 3 1 Push button Switches 8502 S504 The bottom push button switch S502 labeled RECFG is used to force an FPGA reconfiguration When this switch is pressed the FPGA is reloaded from the on board flash memory and restarts in the same manner as a power on reset The middle push button switch S503 labeled Reset is used to reset the FPGA logic and internal soft core CPU Note that this does not cause a reconfiguration it merely restarts the FPGA logic from a known reset state The top push button switch S504 labeled User can be read by the FPGA firmware This switch is not currently used UDPSDR HF1 User s Manual 6 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc 504 not used S503 FPGA Reset 502 Reconfiguration SW1 1 not used Figure 7 BeMicroSDK Switches 1 2 3 2 Slide Switches SW1 1 SW1 2 The two slide switches SW1 1 bottom and SW1 2 top can be read under FPGA firmware control SW1 1 and SW1 2 are not currently used by the FPGA firmware UDPSDR HF1 User s Manual 7 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc 2 Quick Start Guide This quick start guide will lead you through the steps to get your SDRstick HF1 rece
7. click the 1 receiver check box Under the lt General gt lt Options gt tab select HIGH as the UDPSDR HF1 User s Manual 16 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc Process Priority Under the lt Audio gt lt Primary gt tab select 384000 in the Sample Rate box Under the lt Audio gt lt VAC1 gt tab click the Enable VAC 1 check box Close the Setup window and click the Power button and you are on the air If you go back to the Setup window now under the lt General gt lt Hardware Config gt tab you will see your SDRstick IP and MAC addresses displayed in the lower right corner of the window under Hermes Address 3 5 4 GNURadio GNURadio is an open source software development toolkit for Linux and Windows used to implement software defined radios These instructions are for GNURadio version 3 6 5 1 under Ubuntu Linux 12 04LTS Other versions are available the installation procedure may be different 3 5 4 1 GNURadio Installation Point your browser to the GNURadio web page below and follow the instructions in the section Using the build gnuradio script http gnuradio org redmine projects gnuradio wiki InstallingGR Using the build gnuradio script 3 5 4 2 SDRstick Source Block Installation Point your browser to the SDRstick web SVN server here lt http svn sdrstick com gt and download the file gr sdrstick sourceblock tar gz from the lt sdrstick release gnuradio sourceblock gt
8. is unreachable by the PC Make sure that all MAC and IP addresses on the entire network are unique and that all IP address bits with a 1 in the network mask are the same For example if your PC is set to IP address 192 169 1 10 witha net mask of 255 255 255 0 then you can set your SDRstick IP address to 192 168 1 xx where xx a number from 1 to 254 excluding 10 which is already used by your PC 4 5 ExtlO dll not in correct directory Symptom HDSDR and or SDR start right up but no SDRstick is found Cause ExtllO SDRSTICK dll has not been copied into the run directory Solution The ExtlO SDRSTICK dll file is required for HDSDR and SDR to work with SDRstick Place a copy in the same directory as the executable file is located 5 Theory of Operation The next two sections describe the design of the UDPSDR HF1 in very basic terms 5 1 UDPSDR HF1 Front End Hardware The UDPSDR HF1 PCB block diagram is shown in Figure 10 The signal flow is straightforward with the RF signal passing through the LPF anti alias filter and ADC driver before being sampled by the ADC The ADC can be clocked either by the on board 80MHz clock oscillator or a CLK IN signal from the FPGA on the BeMicroSDK The audio DAC and headphone driver are not used by the current firmware as receive audio is sent to the PC sound system UDPSDR HF1 User s Manual 19 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc L
9. not installed you must install it If Quartus Il Web Edition is already installed you need to add a string to your PATH variable that points to the installed directory typically C Xaltera 3 0 quartus bin where 13 0 is replaced by whatever version number you have installed 4 2 Java not installed Symptom SDRstick Programmer does not create a FLASH file when you click the Generate button Cause Java is not installed Solution Install a current version of Java 4 3 Network cable not plugged in Symptom SDRstick discovery fails Cause Ethernet cable not connected between SDRstick and PC or network switch Solution Make sure that there is an Ethernet connection between the SDRstick and the PC Verify the connection by Pinging the SDRstick from the PC Remember that the data flows through the Ethernet port not the USB port 4 4 Incorrect network address assignments Symptom SDRstick discovery may or may not succeed but communication fails and the receiver is unresponsive Cause The PC and the SDRstick are on different subnets Solution Either reprogram the SDRstick to an IP address within the same subnet as the PC or change the IP address of the PC so that it is within the same subnet as the UDPSDR HF1 User s Manual 18 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc SDRstick Since SDRstick discovery is a broadcast it may succeed even though it is on a subnet that
10. 1 User s Manual 12 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc 3 3 2 QS3a Creating a User Flash Block File When SDRstick Programmer is opened the Create UFB pane contains a default MAC address of 00 07 ed fc fd fe a default IP address of 192 168 1 26 and the DHCP client turned off Note that these are only the defaults that may be used to create a UFB FLASH file and do not reflect the current BeMicroSDK network settings Enter the desired MAC address and either enter an IP address or check the Use DHCP box to enable the SDRstick DHCP client to request an IP address from a DHCP server Note You must specify a unique MAC address on your network for each device including SDRstick radios even if you use DHCP to obtain an IP address Once you have set the network parameters click Generate You will be prompted for a path and a file name for the UFB FLASH file For the network parameters to take effect you must program this file into the BeMicroSDK configuration flash ROM using the Program Flash pane Note A Java script generates the FLASH file If file generation appears to complete normally but no FLASH file is created check to make sure an up to date version of Java is installed on the PC 3 3 3 QS3b Programming the BeMicroSDK Configuration Flash ROM Use the Program Flash pane to program FPGA firmware FLASH files and UFB FLASH file into the BeMicroSDK configuration flash ROM Clic
11. 9 5 THEORY OF OPERATION 19 5 1 UDPSDR HF1 FRONT END HARDWARE 19 5 2 UPDSDR HF1 FPGA CODE 20 6 SPECIFICATIONS 21 UDPSDR HF1 User s Manual i Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc 1 Hardware Description The following sections will help familiarize you with the setup and connections to your SDRstick HF1 SDR receiver 1 4 UDPSDR HF1 Connectors See Figure 1 for UDPSDR HF1 connector locations J4 RF Input ac J2 OPT Power In J5 Phones Out J3 OPT Power In J1 BeMicro SDK 227 s eli J5 a ADE Figure 1 UDPSDR HF1 Connectors 1 1 1 UDPSDR HF1 Connectors 1 1 1 1 J1 BeMicroSDK connector The J1 80 pin dual sided MEC style edge connector plugs onto the gold finger edge connector on the end of the BeMicroSDK J1 connects digital data and power between the HF1 and the BeMicroSDK Note that the HF1 uses the BeMicroSDK pin assignments not the MEC connector pin assignments from the Samtec data sheet Pin 1 is marked on HF1 by a white dot The pin 1 end of J1 is closest to capacitor C1 The BeMicroSDK pin 1 is clearly marked with a 1 The correct HF 1 to BeMicroSDK pairing is shown in Figure 2 UDPSDR HF1 User s Manual 1 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc BeMicroSDK Pin 1 J1 Pin 1 Figure 2 The correct HF1 BeMicroSDK pairing 1 1 1 2 J3 and J2
12. J3 P1 WHILE PLUGGED INTO ANY USB PORT THIS CAN DAMAGE YOUR USB PORT Note In order to get the SDRstick HF1 to power up from a Windows PC USB port the Altera Byte Blaster driver must be installed A Byte Blaster driver is not needed for PCs running Linux in order to power up the SDRstick HF1 1 2 1 2 Ethernet Connector X602 The Ethernet connector X602 is a standard RJ 45 connector The BeMicroSDK supports 10 100Mbps Ethernet but 100Mbps is required for SDRstick HF1 This connection is used for the receive data stream to a host PC or network switch 1 2 1 3 MEC Edge connector X701 The 80 contact MEC style edge connector plugs into the UDPSDR HF1 front end board All of the digital signals between the HF1 and the BeMicroSDK use this connector Pin 1 is clearly marked on both the BeMicroSDK and the HF1 board Note The pin numbering is different than that shown on the Samtec connector data sheet Be sure to only plug the boards together in the orientation shown in Figure 2 1 2 2 BeMicroSDK LEDs There are two groups of LEDs on the BeMicroSDK a group of 3 status LEDs below the RJ 45 connector and a group of 8 user LEDs alongside the MEC connector 1 2 2 1 Status LEDs V701 V703 V704 The leftmost status LED V701 is the green power indicator LED The middle status LED V703 is yellow and is lit when the FPGA CONF DONE pin goes high The rightmost status LED V704 is red and lights when pin 4 of the MEC connector is pu
13. OW PASS ANTI ALIAS ADC 14b 80MSPS FILTER FILTER DRIVER ADC EXTERNAL ANTENNA dB CLK OUT SEL OSC BeMicro SDK 80 pins UDPSDR HF1 14 bits 80 MSPS PHONES 14b 50KSPS RECONSTRUCTION HEAD PHONE SERIAL DAC FILTER DRIVER l Figure 10 UDPSDR HF1 Hardware Block Diagram 5 2 UPDSDR HF1 FPGA Code The UDPSDR HF1 simplified FPGA block diagram is shown in Figure 11 This very basic flow shows the Numerically Controlled Oscillator and the two multipliers that serve as a down converter followed by two decimating filters The 1 0 data is buffered by a FIFO and sent to the Ethernet MAC for transmission as UDP packets on the network EP4CE22 FPGA 10 100 PHY 1 25 MHz RF Bandwidth UDPSDR HF1 14 bits 80 MSPS 32Mx16 MDDR DRAM Figure 11 UDPSDR HF1 Simplified FPGA Firmware Block Diagram UDPSDR HF1 User s Manual 20 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc An internal NIOS soft core CPU controls all of the processes and the data flow The NIOS CPU also controls the boot loader functions and external flash memory programming operations not shown 6 Specifications Frequency Range 100kHz to 30MHz Digital Direct Sampling DDS Input impedance 50 ohms RF input clipping level typical 7dBm Maximum Display Bandwidth 1 25MHz Sampling Width and Rate 14bits 80Msps MDS 118dBm 14MHz 500Hz BW for 3dB noise flo
14. Sa sucr UDPSDR HF1 Receiver Front end D RG i Nui e ams dili User s Manual Version 1 1 16 September 2013 Zephyr Engineering Inc Copyright 2013 Zephyr Engineering Inc Copyright 2013 Zephyr Engineering Inc 1 HARDWARE DESCRIPTION 11 UDPSDR HF1 CONNECTORS 1 1 1 1 UDPSDR HF1 CONNECTORS 1 1 2 BEMICROSDK CONNECTORS SWITCHES AND LEDS 3 1 2 1 BEMICROSDK CONNECTORS 3 122 BEMICROSDK LEDs 4 1 2 3 BEMICROSDK SWITCHES 6 2 QUICK START GUIDE 8 3 DETAILED OPERATION 8 3 1 STEP QS1 DOWNLOAD AND INSTALL PROGRAMMING SOFTWARE 9 3 1 1 How TO DETERMINE WHAT PROGRAMMING SOFTWARE YOU NEED 9 3 1 2 DOWNLOAD AND INSTALL SOFTWARE 10 3 2 STEP QS2 INSTALL USB BLASTER DRIVER 11 3 3 STEP QS3 PROGRAM BEMICROSDK 12 3 3 1 SIDEBAR BEMICROSDK CONFIGURATION FLASH ROM AND THE UFB 12 3 32 QS3A CREATING A USER FLASH BLOCK FILE 13 3 3 3 QS3B PROGRAMMING THE BEMICROSDK CONFIGURATION FLASH ROM 13 3 3 4 SIDEBAR HOW THE BEMICROSDK GETs ITS MAC AND IP ADDRESSES 13 3 4 STEP QS4 MAKE EXTERNAL CONNECTIONS 14 3 4 1 QS4B ANTENNA 14 342 QS4c ETHERNET DATA CONNECTION 14 3 4 3 QS4D POWER 14 3 5 STEP QS5 INSTALL AND RUN GUI SOFTWARE 15 3 5 1 HDSDR 15 3 5 2 SDR 16 353 POWERSDR 16 3 5 4 GNURADIO 17 4 TROUBLESHOOTING 18 41 PATH VARIABLE INCORRECTLY SET 18 4 2 JAVA NOT INSTALLED 18 4 3 NETWORK CABLE NOT PLUGGED IN 18 4 4 INCORRECT NETWORK ADDRESS ASSIGNMENTS 18 4 5 EXTIO DLL NOT IN CORRECT DIRECTORY 1
15. and 2 5 of the lab walk you through the Quartus II Web Edition and USB Blaster driver installation 3 1 2 1 Quartus II Web Edition This is an extremely large download about 4 4GB Unless you have a fast connection to the Internet it will take a long time to download You may be able to save some download time by downloading individual files rather that the entire Quartus 11 Web Edition package Click on the Individual Files tab to select individual components You will need two components Quartus II Software includes Nios Il EDS and Cyclone Il Cyclone Ill Cyclone IV device support The combined size of these two components is only a bit over 2GB After the download finishes click on the file to install the software 3 1 2 2 Quartus Il Programmer To load the Quartus Il Programmer you must go to the Individual Files tab and select Quartus II Programmer and SignalTap Il The size is about 140MB After the download finishes click on the file to install the software 3 1 2 3 USB Blaster Driver No download of the USB Blaster driver is required as it is included with both the Quartus II Web Edition and Quartus Il Programmer 3 1 2 4 SDRstickTM Programmer SDRstick Programmer is a Windows application that you can download from lt svn sdrstick com gt Look in the lt sdrstick release gt directory under sdrstick programmer The SDRstick Programmer from svn sdrstick com is an executable windows installer file
16. are determined by how you are going to use your HF1 receiver See Table 2 for a quick summary of the support software components Support Software Size Source Used To Quartus 11 Web Edition 4 4GB Altera com Write modify compile and program Design Software FPGA firmware into FPGA configuration SRAM Quartus II 140MB Altera com Program FPGA firmware into FPGA Programmer configuration SRAM USB Blaster Driver Included in Quartus 11 Enable BeMicroSDK USB power Web Edition and Quartus Windows required to program FPGA Il Programmer configuration SRAM or BeMicroSDK configuration flash memory SDRstick 750KB svn SDRstick com Program BeMicroSDK configuration Programmer flash memory create SDRstick User Block FLASH files Table 2 Support Software Components 3 1 1 How to Determine What Programming Software You Need To help you to determine what software to load first we will explain a bit about how the FPGA works and then show you what each software program does 3 1 1 1 SideBar FPGA Configuration Technical Details The FPGA stores its configuration firmware in internal static memory cells SRAM This internal FPGA memory is aptly called configuration SRAM Since configuration SRAM is volatile it must be initialized every time the FPGA is powered on This can be done in two ways from the USB port or from the BeMicroSDK on board flash programmable ROM When power is first applied dedicated ci
17. do not need to install any support software If at some point you want to upgrade the firmware you will need to install the necessary components from Table 3 You can do this at any time as you need them To Do This You Need This Support Software Power HF1 from external power none Power HF1 from USB power Linux none Power HF1 from USB power Windows USB Blaster Driver Program or update FPGA firmware into BeMicroSDK Quartus II Web Edition USB Blaster configuration flash memory Driver SDRstick Programmer Program FPGA firmware into FPGA configuration SRAM for Quartus II Web Edition or Quartus Il debugging this is not common Programmer USB Blaster Driver Write custom FPGA firmware and program into FPGA Quartus II Web Edition USB Blaster configuration SRAM Driver Write custom FPGA firmware and program into BeMicroSDK Quartus Il Web Edition USB Blaster configuration flash memory Driver SDRstick Programmer Table 3 Support Software Requirements 3 1 2 Download and Install Software After you have determined what support software you need go to altera com and or lt svn sdrstick com gt and download the installation files If you need more detailed installation information please download the beradio lab from the lt beradio gt section of UDPSDR HF1 User s Manual 10 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc lt svn sdrstick com gt Sections 2 4
18. e lt http sdrsharp com gt The SDR download is a zip archive rather than an executable installer for Windows Simply download it to a directory on your local drive and unzip the files After you have unzipped the files you must place a copy of ExtlO SDRSTICK adll in the same directory The latest version of this file can be found on the web at lt svn sdrstick com gt in the lt sdrstick release software gt directory If you have followed the above steps when you run SDR an SDRstick network discovery dialog box will pop up showing the IP address of the SDRstick receiver that SDR found on the network Click OK and the SDR main screen appears Simply click the Play button and you are on the air 3 5 3 PowerSDR PowerSDR is fully featured SDR software for Windows and is available for download from the openHPSDR downloads page here lt http openhpsdr org download php gt Scroll down to near the bottom under the Windows section and look for PowerSDR mRX v3 1 5 0 Setup or a similar revision The PowerSDR download is an executable installer for Windows Simply download it to a directory on your local drive and run it to install the software PowerSDR does not require ExtlO SDRSTICK dll After you launch PowerSDR and before you click the Power button for the first time you must click on the Setup tab and configure your hardware Under the lt General gt lt Hardware Config tab select HERMES as your Radio Model and
19. er of blue buttons above the date display HDSDR saves the setting of Mute from run to run so if you had the receiver muted when you shut HDSDR down it will still muted when you launch HDSDR again 3 5 1 1 2 Bandwidth Selection The SDRstick firmware gives you two options for input sampling rate 1 25Msps and 384Ksps To change the input sampling rate click the Bandwidth F6 button At the UDPSDR HF1 User s Manual 15 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc bottom of the left column you will see a dialog box Click on the small down arrow and you will be presented with two selections 384000 384Ksps and 1250000 1 25Msps There are two reasons that you might want to select the lower sampling rate The lower sampling rate requires less CPU resources so you might want to choose a lower rate if you PC is slower or older Another reason to choose a lower sampling rate is to reduce the network load The 1 25Msps sample rate will consume about 50 of the entire 100Mbps network bandwidth or about 50Mbps This will not work over most WiFi connections unless you reduce the sample rate At 384Ksps the data rate is about 15Mbps which may be transportable over most 802 119 or 802 11n WiFi networks but not over 802 11b networks 3 5 2 SDR SDR read SDR Sharp is a high performance SDR application for Windows written in C It is a fully featured SDR and is available for download her
20. flash ROM The SDRstick Programmer GUI is shown in Figure 8 The left pane is used to create a User Flash Block and the right pane is used to program FLASH format files into the configuration flash ROM on the BeMicroSDK 3 3 1 SideBar BeMicroSDK Configuration flash ROM and the UFB The BeMicroSDK flash ROM is divided up into three sections FPGA fabric NIOS soft core CPU program code and the User Flash Block UFB Each of these sections is programmed from a FLASH format file Two of these files provide the functionality of the FPGA and are supplied by the factory The third file defines the contents of the UFB Each FLASH file contains a starting address and a length and corresponds to one of the three sections of the ROM Thus the FLASH files may be specified in any order and one two or three at a time The UFB contains the user defined MAC and IP addresses and a flag bit that when set causes the BeMicroSDK to request an IP address from a DHCP server The UFB can be expanded to include other user defined parameters in the future ES SDRSTICK Flash Programmer V1 0 12Dec2012 Software Revision Create UFB Pane Program Flash Pane User Network Parameters SDRSTICK FLASH PROGRAMMER O007edfctdte MAC Address Files to program Add Remove 192 168 1 26 Static IP Address Use DHCP Generate Create User Flash Block File Figure 8 SDRstick Programmer Window UDPSDR HF
21. is is in the Altera block of IP addresses with the last three octets set to 0x012345 Note In order to use multiple SDRstick radios on the same network you MUST set unique MAC addresses for each radio that are different from any other MAC address on the same network To determine its IP address the SDRstick first looks to see if there is a valid UFB If there is a valid UFB the SDRstick then looks to see if the DHCP client is enabled If itis then a DHCP request is broadcast If an IP address is received from the DHCP server that IP address is used If the DHCP request is unsuccessful for example a timeout occurs or the DHCP client is not enabled the SDRstick uses the IP address from the UFB instead If there is no valid UFB the SDRstick broadcasts a DHCP request If an IP address is received from the DHCP server that IP address is used If the DHCP request is unsuccessful for example a timeout occurs the SDRstick uses the default IP address of 192 168 1 25 3 4 Step QS4 Make External Connections The SDRstick requires three external connections to function antenna Ethernet data connection and power input 3 4 1 QS4b Antenna Connect an antenna to the J4 SMA connector Note that there is no bandpass filtering at the receiver front end Excessive voltage at the antenna jack can damage the receiver Any voltage above about 3V p p may damage the input circuitry 3 4 2 QS4c Ethernet Data Connection
22. iver operating Please refer to Section 3 for in depth information on each of these steps If your BeMicroSDK came pre programmed from the factory you can skip steps QS1 and QS3 051 Download and install programming software a Download and install Altera Quartus Il Web Edition b Download and install SDRstick Programmer QS2 Install Altera USB Blaster hardware driver only needed for Windows a Plug in BeMicroSDK and point to driver b Verify that power LED V701 lights on BeMicroSDK QS3 Program BeMicroSDK a Use SDRstick Programmer to create User Flash Block FLASH file make sure to choose an IP address on the same subnet as the PC or use DHCP with a server that issues IP addresses on the same subnet b Use SDRstick Programmer to program three FLASH files two firmware and one user block into BeMicroSDK flash memory QS4 Make external connections a Remove BeMicroSDK from computer b Install HF1 onto BeMicroSDK and connect antenna to J4 c Connect Ethernet cable to host PC or network d Connect power and observe two flashing heartbeat LEDs on BeMicroSDK QS5 Install and Run GUI software on computer a One or more of GNURadio HDSDR SDR PowerSDR are options b ExtlO SDRSTICK dll must be placed into the same directory as the executable files a separate copy is required for each GUI c For HDSDR and SDRi observe that SDRstick discovery was successful d For PowerSDR configure for Hermes 1 RX and 384K data rate
23. k the Add button to add files to the Files to Program window Files can be added in any order A section of the ROM will only be programmed if the corresponding FLASH file appears in this window otherwise that section will be unaffected You can update the UFB without updating the firmware and vice versa Click the Program button to program the files into the configuration flash on the BeMicroSDK Note Components of Quartus 11 Web Edition are used by SDRstick Programmer to program the BeMicroSDK configuration flash ROM You should see several command windows containing scrolling text up and then close The windows should appear long enough for you to read a few lines on each one If nothing appears to happen it is likely that your PATH variable is incorrectly set Refer to PATH variable incorrectly set in section 4 1 for a solution 3 3 4 SideBar How the BeMicroSDK Gets Its MAC and IP Addresses When the SDRstick is first powered on it goes through a multi step process to determine what MAC and IP address to use on the network To determine its MAC address the SDRstick first looks to see if there is a valid UFB If a valid UFB exists the MAC address is obtained from the UFB If no valid UFB exists UDPSDR HF1 User s Manual 13 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc it was not programmed into the configuration flash ROM then the MAC address is set to 00 07 ed 01 23 45 Th
24. lled low PWREN asserted Since HF1 never drives this pin low this LED should never be lit See Figure 5 for the status LED locations UDPSDR HF1 User s Manual 4 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc V701 Power V703 CONF DONE V704 PWREN2 Figure 5 BeMicroSDK Status LEDs 1 2 2 2 User LEDs LED1 LED8 The eight user LEDs LED1 LED8 are under FPGA firmware control Since the function of these LEDs is defined by the FPGA firmware they can have any desired meaning Some of the user LEDs are used to indicate some common conditions by the SDRstick firmware shown in Table 1 See Figure 6 for user LED locations LED Function LED8 top lit on A D converter overload condition LED7 lit on FIFO overflow internal error condition LED6 off LED5 off LED4 off LED3 off LED2 Heartbeat flashes 1Hz from HF1 80MHz clock LED1 bottom Heartbeat flashes 1Hz from BeMicroSDK 50MHz clock Table 1 UDPSDR HF1 Firmware User LED Indicators UDPSDR HF1 User s Manual 5 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc LED8 ADC Overload LED7 Internal FIFO Overflow LED6 not used LED5 not used LED4 not used LED3 not used LED2 UDPSDR HF1 Clock Heartbeat LED1 BeMicroSDK Clock Heartbeat Figure 6 BeMicroSDK
25. nes into J5 a 3 5mm stereo jack which connects to the on board audio DAC headphone amplifier Note The current FPGA code implementations send receive audio to the PC sound system rather than to J5 It is available as an option for the user 1 2 BeMicroSDK Connectors Switches and LEDs See Figure 4 for BeMicroSDK connector switch and LED locations X201 USB X602 Ethernet 5502 5504 User Buttons LED1 8 User LEDs ak LBeMicro SDK V701 V703 V704 Status LEDs SW1 User Switches X701 MEC Connector Figure 4 BeMicroSDK Connectors Switches and LEDs 1 2 1 BeMicroSDK Connectors There are three connectors on the BeMicroSDK one USB type A one Ethernet RJ 45 and one 80 contact MEC edge connector UDPSDR HF1 User s Manual 3 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc 1 2 1 1 USB Connector X201 The USB connector is used to program both the FPGA configuration RAM and the BeMicroSDK configuration flash memory The BeMicroSDK appears to the host PC as an Altera Byte Blaster The USB connector can also be used to power the SDRstick HF1 when it is connected to a port that can supply sufficient power USB 2 0 ports USB 3 0 ports and powered hubs can power this 400mA load A 5V well regulated power supply on J3 or J2 can be used instead of the BeMicroSDK USB connector WARNING NEVER APPLY EXTERNAL POWER TO
26. or increase Antenna connection standard SMA Power consumption 5VDC 400mA including BeMicroSDK Dimensions UDPSDR HF 1 31mm x 65mm 1 2 W x 2 6 L Dimensions including BeMicroSDK 33mm x 185mm 1 3 W x 7 3 L UDPSDR HF1 User s Manual 21 Version 1 1 16 September 2013
27. ps for setting up four common but powerful programs that will work with your SDRstick HF1 receiver 3 5 1 HDSDR High Definition Software Defined Radio or HDSDR is a freeware SDR program for Windows 2000 through Windows 8 HDSDR is written by Mario Taeubel DGOJBJ and is an advanced version of Winrad This is an excellent SDR GUI and may be downloaded from the HDSDR web site http www hdsdr de gt The HDSDR download is an executable installer for Windows Simply download it to a directory on your local drive and run it to install the software After you have installed HDSDR you must place copy of ExtlO SDRSTICK adll in the directory that HDSDR runs The latest version of this file can be found on the web at lt svn sdrstick com gt in the lt sdrstick release software gt directory If you have followed all of the above steps when you run HDSDR an SDRstick network discovery dialog box will pop up showing the IP address of the SDRstick receiver that HDSDR found on the network Click OK and the HDSDR main screen appears Simply click the Start button and you are on the air 3 5 1 1 HDSDR Tips Here are a few tips for using HDSDR with SDRstick HF1 3 5 1 1 1 Soundcard Selection If you are having receiver audio issues click on the Soundcard F5 button You can then select one of several options in case your PC has more than one audio output device Also note that there is a Mute button in the left center of the clust
28. rcuitry inside the FPGA automatically loads the configuration SRAM from this configuration flash ROM if it contains FPGA firmware Note that even if the ROM does contain a valid firmware load UDPSDR HF1 User s Manual 9 Version 1 1 16 September 2013 Copyright 2013 Zephyr Engineering Inc the FPGA configuration SRAM can be overwritten with a new firmware load from the USB port at any time For the SDRstick HF1 receiver to work immediately on power up the BeMicroSDK configuration flash ROM must be programmed with the FPGA firmware load The Quartus Il Web Edition software and the Quartus Il Programmer software are both capable of writing directly to the FPGA configuration SRAM but not to the BeMicroSDK configuration flash ROM The SDRstick Programmer software was developed to write FPGA firmware loads to the BeMicroSDK configuration flash ROM allowing the receiver to run immediately after power is applied The SDRstick Programmer uses components from the Quartus Il Web Edition as well as the USB Blaster Driver Therefore the USB Blaster Driver and the Quartus Il Web Edition software must be installed in order to use SDRstick Programmer 3 1 1 2 Determine Software Components See table Table 3 to determine what software you will need to install depending on how you want to configure your SDRstick HF1 receiver If your BeMicroSDK came pre loaded from the factory and you are powering it from external power you
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