diff options
| author | JF <jf@codingfield.com> | 2020-03-03 20:51:42 +0100 |
|---|---|---|
| committer | JF <jf@codingfield.com> | 2020-03-03 20:51:42 +0100 |
| commit | fd45746b8cdb13dc7b0bfc175b5d5829bcdd8a07 (patch) | |
| tree | 6cde83829a16ae275c2a3abab101ea967a89f51a /README.md | |
| parent | 545636940f68108a361dda85e0e48a240909cf29 (diff) | |
Add doc in README.md : how to flash using gdb
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 54 |
1 files changed, 51 insertions, 3 deletions
@@ -102,6 +102,7 @@ $ make -j pinetime-app ``` ## How to program +### Using make * Erase @@ -128,9 +129,56 @@ $ make FLASH_MERGED_pinetime-app $ make help ``` - - - +### Using GDB and a Black Magic Probe (BMP) +You can use this procedure if you want to flash the firmware (from a release, for example) without having to build the project locally. + +Enter the following command into GDB: + +``` +target extended-remote /dev/ttyACM0 +monitor swdp_scan +attach 1 +file ./pinetime-app-full.hex +load +run +``` + +*Note* : Sometimes, I need to run this procedure 2 times : the first time, the screen stays blank, and the second time, it works. This is something I'll need to debug... + +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. +``` ## RTT |