1 ) Duplex hotSPOT by BI7JTA VR2VYEOriginal from
The lastest Version is 1.4.4 when update this guide,the newest you can find in github.
There are 3 ways to upgrade,
Make sure you has choose Radio/Modem Type "STM32-DVM/ MMDVM_HS-Raspberry Pi Hat(GPIO)"
How to enter ssh mode:
1) Use inner upgrade tools in Pi-Star OS
Use official version, build by G4KLX
sudo pistar-mmdvmhshatflash hs_dual_hat
Use VR2VYE build version
#take ver 1.4.8 for example, the newest version visit github
sudo pistar-mmdvmhshatflash-custom mmdvm_duplex_fw.bin
2) Manual execute upgrade, this way support downgrade version.
Use BI7JTA & VR2VYE build version
Use Andy CA6JAU Version
#1) login ssh mode:
Copy all follow text ,then Ctrl+V, and press ENTER
#2) Change system to Read and Write
#3) Download flash script , take version 1.4.4 for example
#View the last version available here
curl -OL https://github.com/VR2VYE/MMDVM_HS_firmware/releases/download/v1.4.4/install_fw_duplex.sh
#4) make runable
sudo chmod +x install_fw_duplex.sh
#5) Stop MMDVMHost serice
sudo pistar-watchdog.service stop; sudo systemctl stop mmdvmhost.timer; sudo systemctl stop mmdvmhost.service
#6) Flash to lastest version
#7) Startup MMDVMHost service
sudo pistar-watchdog.service start; sudo systemctl start mmdvmhost.timer; sudo systemctl start mmdvmhost.service
2 ) Nano hotSPOT (Bluebox)sudo pistar-nanohsflash nano_hs
If not successful,some old nano HAT need do more operation,connect the upgrade GPIO jumper.
3)for RPi_Simplex_hotspot && hotSPOT in LCD make by jTAsudo pistar-mmdvmhshatflash hs_hat
4)for MMDVM repeater board make by jTA
Update: This firmware is compiled by BI7JTA, use source code from G4KLX 20180822, synchronize with duplex hotspot Ver 1.4.7
New feature: Support POCSAG mode.
Flash use USB
Suggest this way,enter flash mode easy then GPIO
1）Use USB mode
1.1 Disconnect STM32-DVM from the RPi host, GPIO and USB all disconnect,
1.2 Insert JP jumper, short BOOT and VCC near P25 LED,
1.3 Connect STM32-DVM to the RPi host use USB wire, then will endter flash mode automatic. PWR, ACT and DMR will bright, not flashing (Very important,if not as I description, disconnect USB and connect again) .
1.4 Flash use USB (replace your .hex path, and download stm32flash,see Require libs )
sudo stm32flash -w /usr/src/MMDVM/bin/mmdvm.hex -v /dev/ttyUSB0
Video Playlist :
Flash use ST-LINK
Buy a ST-Link ,then connect to the board ST-LINK interface, then open STM32 ST-LINK Utility, choose mmdvm.hex,then flash.
About MMDVM Repeater board by BI7JTA
G4KLX source code