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diff --git a/doc/gdb.md b/doc/gdb.md new file mode 100644 index 00000000..eb9b73f1 --- /dev/null +++ b/doc/gdb.md @@ -0,0 +1,48 @@ +# Flashing the firmware with GDB and Black Magic Probe (BMP) + +Enter the following command into GDB: + +``` +target extended-remote /dev/ttyACM0 +monitor swdp_scan +attach 1 +file ./pinetime-app-full.hex +load +run +``` + +Example : +``` +$ /home/jf/nrf52/gcc-arm-none-eabi-8-2019-q3-update/bin/arm-none-eabi-gdb + +(gdb) target extended-remote /dev/ttyACM0 +Remote debugging using /dev/ttyACM0 +(gdb) monitor swdp_scan +Target voltage: ABSENT! +Available Targets: +No. Att Driver + 1 Nordic nRF52 M3/M4 + 2 Nordic nRF52 Access Port + +(gdb) attach 1 +Attaching to Remote target +warning: No executable has been specified and target does not support +determining executable automatically. Try using the "file" command. +0xfffffffe in ?? () +(gdb) file ./pinetime-app-full.hex +A program is being debugged already. +Are you sure you want to change the file? (y or n) y +Reading symbols from ./pinetime-app-full.hex... +(No debugging symbols found in ./pinetime-app-full.hex) +(gdb) load +Loading section .sec1, size 0xb00 lma 0x0 +Loading section .sec2, size 0xf000 lma 0x1000 +Loading section .sec3, size 0x10000 lma 0x10000 +Loading section .sec4, size 0x5150 lma 0x20000 +Loading section .sec5, size 0xa000 lma 0x26000 +Loading section .sec6, size 0x10000 lma 0x30000 +Loading section .sec7, size 0xdf08 lma 0x40000 +Start address 0x0, load size 314200 +Transfer rate: 45 KB/sec, 969 bytes/write. +``` + |