How to flash the Motion Controller with the modified firmware:
WARNING: This is modified firmware is not supported by anyone. Update at your own risk.
$ brew update openocd
Debug Port Pinout
Flashing the Printer
Terminal 1: Start OpenOCD Server
$ cd [working directory] $ openocd -f /usr/local/share/openocd/scripts/interface/stlink-v2.cfg -f /usr/local/share/openocd/scripts/target/stm32f0x.cfg adapter speed: 1000 kHz adapter_nsrst_delay: 100 none separate Info : Unable to match requested speed 1000 kHz, using 950 kHz Info : Unable to match requested speed 1000 kHz, using 950 kHz Info : clock speed 950 kHz Info : STLINK v2 JTAG v17 API v2 SWIM v4 VID 0x0483 PID 0x3748 Info : using stlink api v2 Info : Target voltage: 3.126620 Info : stm32f0x.cpu: hardware has 4 breakpoints, 2 watchpoints
Terminal 2: Connect to OpenOCD Server
$ telnet localhost 4444 Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Open On-Chip Debugger > reset halt > stm32f0x unlock 0 [power cycle the board] > stm32f0x mass_erase 0 > flash write_bank 0 hacked_v41.bin 0
That's all folks!