When the MCU is started with OTA1 image and you try to update the firmware, the OTA process fails:
[D][ota:320]: OTA in progress: 48.8%
[D][ota:320]: OTA in progress: 65.1%
[D][ota:320]: OTA in progress: 81.5%
E [ 57890.676] OTA: Error: MD5 Check Failed
E [ 57890.680] OTA: - written: 1380864 of 1380864
E [ 57890.688] OTA: - buf: size=2199023255552, left=1153652920625948496
E [ 57890.691] OTA: - ctx: seq=4294967295, part=(null)
E [ 57890.699] OTA: - buf: seq=2696/2697, addr=689920, len=252
[W][ota:336]: Error ending OTA!, error_code: 132
Turns out that lt_ota_write() modifies the data ("binpatch" to update memory addresses for OTA2) and therefore MD5Update has to be called before writing the data.
When the MCU is started with OTA1 image and you try to update the firmware, the OTA process fails:
Turns out that
lt_ota_write()modifies the data ("binpatch" to update memory addresses for OTA2) and therefore MD5Update has to be called before writing the data.