Help me! Where can I find the bx3105 spi communication guide?

[jyijyi]

see if this helps you:

BX100 AT Command for SPI Error

@dargaj, I am assuming you are talking about the BX3100? I suspect that your firmware is not 2.5+ ati BX310x OK at+cmgr BX310x.2.5.0-2 OK at OK at+srspi? +SRSPI: 0,0 OK at+srspi=1,1 OK Couple of other things as they are not well documented. SPI Frame: command 2 bytes payload_length 2 bytes more 1 byte reserved 3 bytes payload 256 bytes <command> 0x0001: AT command 0x0002: AT response 0x0003: data (data mode) 0xffff: dummy data <payload_length>: Length of the significan…