![\"\"](\"https:\/\/www.f5uii.net\/wp-content\/uploads\/2016\/08\/img_57b962874b190.gif\")
\nThe MMDVM software is a fabulous development realised\u00a0by Jonathan G4KLX allowing to built a multimode digital\u00a0hamradio repeater. Indeed, it can manage the three digtal modes DSTAR,DMR and C4FM.<\/p>\n
\nThe MMDVM software is a fabulous development realised\u00a0by Jonathan G4KLX allowing to built a multimode digital\u00a0hamradio repeater. Indeed, it can manage the three digtal modes DSTAR,DMR and C4FM.<\/p>\n
MMDVM is composed of two physical parts.<\/p>\n
<\/p>\n
![\"[en:]Synoptic](\"https:\/\/www.f5uii.net\/wp-content\/uploads\/2016\/08\/Synoptique-MMDVM.gif\")
<\/a>Synoptic of Digital Repeater using MultiMode Digital Voice Modem (MMDVM)<\/p><\/div>Aside from being accessible to DIY with computer knowledge… this is low-cost implementation. I suggest you follow step by step the whole implementation. The goal is simple: Have an interconnected digital UHF repeater\u00a0via internet.<\/p>\n
The tutorial is to read through several pages. For easy navigation, use the summary and the proposed navigation section\u00a0at the bottom of each page.<\/p>\n
You buy your Arduino Due board, and the first thing to do is install the Arduino IDE editing software. Download the installation file (86Mo for the 1.6.0 version of the IDE) on page https:\/\/www.arduino.cc\/en\/Main\/Software Several USB driver installation safety questions are asked. Of course, we answer Install<\/em>.<\/p>\n The\u00a0message Completed<\/em>\u00a0is displayed,\u00a0the installation is finieshed, Click\u00a0Close<\/em>.<\/p>\n Connect the Arduino Due card on the programming of USB (external power connector side), the Device Manager of Windows adds a serial COM ports. In my case, a COM11 Port (Port Programming Arduino Die).<\/p>\n From your Star menu, you launch the software Arduino<\/em>.<\/p>\n Choose the serial port corresponding a the Arduino link (here COM11) in the menu Tools \/ Ports.<\/p>\n Then choose Tools \/ Boards Manager<\/em>. The manager downloads the definitions of Arduino cards over internet.<\/p>\n Dans le champs Filter your search<\/em>, type\u00a0due<\/em>. Select the line Arduino SAM Boards (32-bits ARM Cortex-M3), et click\u00a0Install.<\/em><\/p>\n Select now at the bottom of menu Tools \/ Boards\u00a0: “Arduino Due (Programming Port)”<\/p>\n Before programming the Arduino with MMDVM software, we will inject a small test program to check that everything is correctly set.<\/p>\n This test program This test program is just going to blink the LED\u00a0L<\/em>\u00a0existing on the Arduino Due board.<\/p>\n Open then\u00a0existing program in the menu File \/ Examples \/ 01.Basics \/ Blink<\/p>\n Therefore, this program will simply change the output state of Pin 13 on which is connected L lamp of the board.<\/span><\/p>\n To inject the program in the Arduino Due, click on the arrow.<\/p>\n The program is then compiled by the software, then loaded into the Arduino.\u00a0From there, the program flashes the LED, is working independently on the Arduino board and of course does not need anymore the Arduino PC software, which has just been used for compilation and loading.<\/p>\n The lower window software shows the progress of the compilation,\u00a0loading and initialization of the Arduino program. The message ‘Verify successful<\/em>‘\u00a0indicates the successful completion of the compilation.<\/p>\n Here the flashing LED …<\/p>\n We go now to install the software on MMDVM Arduino Due.<\/p>\n In fact, before installing the software MMDVM, we have yet to achieve a small change in the configuration of the Arduino editor.<\/p>\n A specified in the file\u00a0Built.txt<\/a>, changes are needed on the definition of an Arduino software configuration file.<\/p>\n Open the directory\u00a0C:\\Users\\User<\/span>\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\sam\\1.6.9<\/em><\/p>\n For other platforms, reported directly to the instruction file Built.txt<\/a>.<\/p>\n Make a backup copy of the file platform.txt<\/p>\n Edit the file with a platform.txt programming editor (for\u00a0example Notepad +<\/a> ou SublimeText<\/a>)<\/p>\n The following line must be changed (in my case, line is 80th)<\/p>\n This is equivalent to practically added at the end of the line the following\u00a0part<\/p>\n Indeed, if one does not realize the change described in\u00a0Built.txt<\/a>, a following compile error may appear: :<\/p>\n After installing the software for charging via USB Arduino Due and making this modification platform.txt<\/em> file, we can now take care of the load Jonathan G4KLX software on the Arduino Due. This is done in three stages.<\/p>\n Open then file MMDVM\/MMDVM.ino<\/em> (by double\u00a0click on the file from a windows explorer, the Arduino Editor will directly start)<\/p>\n Click on “Config.h<\/em>” tab.<\/p>\n Edit the following for the operation matches the platinum MMDVM I realized (PCB printed\u00a0“PCB designed by F5UII 07.2016”) . Save the file\u00a0Config.h (Ctrl-S or File\/Save)<\/em><\/p>\n Pressing the reset button, the L LED of the Arduino start blinking. The MMDVM firmware is now ready .<\/p>\n The following consists of installing on a second MMDVMHost software on a Raspberry Pi. This will be detailed by a second article, which will also present the adjustments to do\u00a0on the MMDVM shield low-frequency filters installed on the Arduino.<\/p>\n Feel free to post your questions or comments\u00a0by intermediaries comment field at the bottom of article.<\/li>\n<\/ol>\n <\/p>","protected":false},"excerpt":{"rendered":" This tutorial explains you the first step of making a digital Hamradio repeater : how to install the firmware MMDVM on Arduino Due, step by step. Lire plus …<\/a><\/p>\n","protected":false},"author":1,"featured_media":1275,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[30,25,29],"class_list":["post-1187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mmdvm","tag-arduino","tag-mmdvm","tag-shield"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t
\nInstall the software. All the checkbox are checked especially\u00a0Install USB Driver<\/em>.<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\nTest program of the Arduino Due<\/h2>\n
<\/p>\n\/*\r\n Blink\r\n Turns on an LED on for one second, then off for one second, repeatedly.\r\n\r\n Most Arduinos have an on-board LED you can control. On the Uno and\r\n Leonardo, it is attached to digital pin 13. If you're unsure what\r\n pin the on-board LED is connected to on your Arduino model, check\r\n the documentation at http:\/\/www.arduino.cc\r\n\r\n This example code is in the public domain.\r\n\r\n modified 8 May 2014\r\n by Scott Fitzgerald\r\n *\/\r\n\r\n\r\n\/\/ the setup function runs once when you press reset or power the board\r\nvoid setup() {\r\n \/\/ initialize digital pin 13 as an output.\r\n pinMode(13, OUTPUT);\r\n}\r\n\r\n\/\/ the loop function runs over and over again forever\r\nvoid loop() {\r\n digitalWrite(13, HIGH); \/\/ turn the LED on (HIGH is the voltage level)\r\n delay(1000); \/\/ wait for a second\r\n digitalWrite(13, LOW); \/\/ turn the LED off by making the voltage LOW\r\n delay(1000); \/\/ wait for a second\r\n}<\/pre>\n<\/p>\nLe croquis utilise 22 124 octets (4%) de l'espace de stockage de programmes. Le maximum est de 524 288 octets.\r\nAtmel SMART device 0x285e0a60 found\r\nErase flash\r\ndone in 0.035 seconds\r\n\r\nWrite 24392 bytes to flash (96 pages)\r\n\r\n[ ] 0% (0\/96 pages)\r\n[== ] 9% (9\/96 pages)\r\n[===== ] 18% (18\/96 pages)\r\n[======== ] 28% (27\/96 pages)\r\n[=========== ] 37% (36\/96 pages)\r\n[============== ] 46% (45\/96 pages)\r\n[================ ] 56% (54\/96 pages)\r\n[=================== ] 65% (63\/96 pages)\r\n[====================== ] 75% (72\/96 pages)\r\n[========================= ] 84% (81\/96 pages)\r\n[============================ ] 93% (90\/96 pages)\r\n[==============================] 100% (96\/96 pages)\r\ndone in 5.126 seconds\r\n\r\nVerify 24392 bytes of flash\r\n\r\n[ ] 0% (0\/96 pages)\r\n[== ] 9% (9\/96 pages)\r\n[===== ] 18% (18\/96 pages)\r\n[======== ] 28% (27\/96 pages)\r\n[=========== ] 37% (36\/96 pages)\r\n[============== ] 46% (45\/96 pages)\r\n[================ ] 56% (54\/96 pages)\r\n[=================== ] 65% (63\/96 pages)\r\n[====================== ] 75% (72\/96 pages)\r\n[========================= ] 84% (81\/96 pages)\r\n[============================ ] 93% (90\/96 pages)\r\n[==============================] 100% (96\/96 pages)\r\nVerify successful\r\ndone in 5.175 seconds\r\nSet boot flash true\r\nCPU reset.<\/pre>\n
<\/a><\/p>\n<\/p>\nInstallation of MMDVM on the Arduino Due<\/h2>\n
Amendement of IDE configuration<\/h2>\n
<\/p>\n## Combine gc-sections, archives, and objects\r\nrecipe.c.combine.pattern=\"{compiler.path}{compiler.c.elf.cmd}\" -mcpu={build.mcu} -mthumb {compiler.c.elf.flags} \"-T{build.variant.path}\/{build.ldscript}\" \"-Wl,-Map,{build.path}\/{build.project_name}.map\" {compiler.c.elf.extra_flags} -o \"{build.path}\/{build.project_name}.elf\" \"-L{build.path}\" -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--entry=Reset_Handler -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--start-group {compiler.combine.flags} {object_files} \"{build.variant.path}\/{build.variant_system_lib}\" \"{build.path}\/{archive_file}\" -Wl,--end-group -lm -gcc<\/pre>\n## Combine gc-sections, archives, and objects\r\nrecipe.c.combine.pattern=\"{compiler.path}{compiler.c.elf.cmd}\" -mcpu={build.mcu} -mthumb {compiler.c.elf.flags} \"-T{build.variant.path}\/{build.ldscript}\" \"-Wl,-Map,{build.path}\/{build.project_name}.map\" {compiler.c.elf.extra_flags} -o \"{build.path}\/{build.project_name}.elf\" \"-L{build.path}\" -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--entry=Reset_Handler -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--start-group {compiler.combine.flags} {object_files} \"{build.variant.path}\/{build.variant_system_lib}\" \"{build.system.path}\/CMSIS\/CMSIS\/Lib\/ARM\/arm_cortexM3l_math.lib\" \"{build.path}\/{archive_file}\" -Wl,--end-group -lm -gcc\r\n<\/pre>\n\"{build.system.path}\/CMSIS\/CMSIS\/Lib\/ARM\/arm_cortexM3l_math.lib\"<\/pre>\nsketch\\DMRTX.cpp.o: In function `CDMRTX::writeByte(unsigned char, unsigned char)':\r\n\r\nsketch\/DMRTX.cpp:299: undefined reference to `arm_fir_fast_q15'\r\n\r\nsketch\\DStarTX.cpp.o: In function `CDStarTX::writeByte(unsigned char)':\r\n\r\nsketch\/DStarTX.cpp:453: undefined reference to `arm_fir_fast_q15'\r\n\r\nsketch\\IO.cpp.o: In function `CIO::process()':\r\n\r\nsketch\/IO.cpp:344: undefined reference to `arm_fir_fast_q15'\r\n\r\nsketch\/IO.cpp:351: undefined reference to `arm_fir_fast_q15'\r\n\r\nsketch\/IO.cpp:362: undefined reference to `arm_fir_fast_q15'\r\n\r\nsketch\\IO.cpp.o:sketch\/IO.cpp:369: more undefined references to `arm_fir_fast_q15' follow\r\n\r\ncollect2.exe: error: ld returned 1 exit status\r\n\r\nexit status 1\r\nErreur de compilation pour la carte Arduino Due (Programming Port)<\/pre>\n
Downloading MMDVM\u00a0software<\/h2>\n
\n
\nhttps:\/\/github.com\/g4klx\/MMDVM<\/a><\/li>\n
\n<\/li>\nConfigure the MMDVM software<\/h2>\n
<\/p>\n\n
\/*\r\n * Copyright (C) 2015,2016 by Jonathan Naylor G4KLX\r\n *\r\n * This program is free software; you can redistribute it and\/or modify\r\n * it under the terms of the GNU General Public License as published by\r\n * the Free Software Foundation; either version 2 of the License, or\r\n * (at your option) any later version.\r\n *\r\n * This program is distributed in the hope that it will be useful,\r\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\r\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r\n * GNU General Public License for more details.\r\n *\r\n * You should have received a copy of the GNU General Public License\r\n * along with this program; if not, write to the Free Software\r\n * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\r\n *\/\r\n\r\n#if !defined(CONFIG_H)\r\n#define CONFIG_H\r\n\r\n\/\/ Allow for the use of high quality external clock oscillators\r\n\/\/ The number is the frequency of the oscillator in Hertz.\r\n\/\/ For 12 MHz\r\n#define EXTERNAL_OSC 12000000\r\n\/\/ For 14.4 MHz\r\n\/\/ #define EXTERNAL_OSC 14400000\r\n\/\/ For 19.2 MHz\r\n\/\/ #define EXTERNAL_OSC 19200000\r\n\r\n\/\/ Allow the use of the COS line to lockout the modem\r\n\/\/ #define USE_COS_AS_LOCKOUT\r\n\r\n\/\/ Use pins to output the current mode\r\n\/\/ #define ARDUINO_MODE_PINS\r\n\r\n\/\/ For the original Arduino Due pin layout\r\n\/\/ #define ARDUINO_DUE_PAPA\r\n\r\n\/\/ For the ZUM Board V1.0 pin layout\r\n\/\/ #define ARDUINO_DUE_ZUM_V10\r\n\r\n\/\/ For the SP8NTH board\r\n#define ARDUINO_DUE_NTH\r\n\r\n\/\/ To use wider C4FSK filters for DMR and System Fusion on transmit\r\n\/\/ #define WIDE_C4FSK_FILTERS_TX\r\n\/\/ To use wider C4FSK filters for DMR and System Fusion on receive\r\n\/\/ #define WIDE_C4FSK_FILTERS_RX\r\n\r\n#endif<\/pre>\n<\/li>\n<\/ol>\n
<\/h2>\n
Compile and load MMDVM on the Arduino Due<\/h2>\n
\n
<\/li>\n\nLe croquis utilise 53\u00a0304 octets (10%) de l'espace de stockage de programmes. Le maximum est de 524\u00a0288 octets.\r\nAtmel SMART device 0x285e0a60 found\r\nErase flash\r\ndone in 0.036 seconds\r\n\r\nWrite 55924 bytes to flash (219 pages)\r\n\r\n[ ] 0% (0\/219 pages)\r\n[== ] 9% (21\/219 pages)\r\n[===== ] 19% (42\/219 pages)\r\n[======== ] 28% (63\/219 pages)\r\n[=========== ] 38% (84\/219 pages)\r\n[============== ] 47% (105\/219 pages)\r\n[================= ] 57% (126\/219 pages)\r\n[==================== ] 67% (147\/219 pages)\r\n[======================= ] 76% (168\/219 pages)\r\n[========================= ] 86% (189\/219 pages)\r\n[============================ ] 95% (210\/219 pages)\r\n[==============================] 100% (219\/219 pages)\r\ndone in 11.677 seconds\r\n\r\nVerify 55924 bytes of flash\r\n\r\n[ ] 0% (0\/219 pages)\r\n[== ] 9% (21\/219 pages)\r\n[===== ] 19% (42\/219 pages)\r\n[======== ] 28% (63\/219 pages)\r\n[=========== ] 38% (84\/219 pages)\r\n[============== ] 47% (105\/219 pages)\r\n[================= ] 57% (126\/219 pages)\r\n[==================== ] 67% (147\/219 pages)\r\n[======================= ] 76% (168\/219 pages)\r\n[========================= ] 86% (189\/219 pages)\r\n[============================ ] 95% (210\/219 pages)\r\n[==============================] 100% (219\/219 pages)\r\nVerify successful\r\ndone in 11.246 seconds\r\nSet boot flash true\r\nCPU reset.<\/pre>\n
After that<\/h2>\n