I need to implement the OTA firmware update via UART and with AT commands.
The FR800X_sdk1.2_43ed3f4 SDK contains an example for AT commands, and evt.event_id = AT_RECV_UPGRADE_DATA is also provided.
The procedure begins with AT+MODE:U
at_ota_init(); --> missing api
chk_ret = check_whole_pkt_in_upgrade_mode(); --> missing api
but the code is not complete.
firmware upgrade process is expected while receiving from uart:
app_at_recv_c
if(gAT_ctrl_env.upgrade_start == true)
gAT_env.upgrade_data_processing == 0
Where can I find the complete code and manual?