Příspěvky

Zobrazují se příspěvky z květen, 2021

Reprogramming "old" Sennheiser SKM 3072-U - Part 2 - I2C

Obrázek
 Understanding what is going on I2C In the previous step I hooked up my logic analyzer on the I2C to see how the communication inside the mic actually looks like. Partially because I want to understand better how to reprogram the microphones EEPROM but also because I'm just curious and want to see what is really going on. After powering up the microphone this is the output from I2C. write to 0x3E ack data: 0xE0 0xC8 0xF0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  write to 0x3E ack data: 0xE0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  write to 0x50 ack data: 0x10  read to 0x50 ack data: 0x11 write to 0x51 ack data: 0x1A  read to 0x50 ack data: 0xA9 write to 0x51 ack data: 0xB3  read to 0x50 ack data: 0x1F write to 0x51 ack data: 0xAE  read to 0x50 ack data: 0x03 write to 0x51 ack data: 0xAF  read to 0x50 ack data: 0x20 write to 0x51 ack data: 0xAC  read to 0x50 ack data: 0xFC write to 0x51 ack data: 0xAD  read to 0x50 ack data: 0x5D write to 0x51 ack data: 0xC4  read