Maixduino icon indicating copy to clipboard operation
Maixduino copied to clipboard
verified publisher icon sipeed

Something wrong with I2C

Open Kabron287 opened this issue 5 years ago • 2 comments

I'm trying to get working MLX90640 camera with MAIX GO board. I2C pins are 30 - SCL, 31 - SDA. Attached example reads MLX serial number. As could be seen from the attached diagrams, transmit is OK, but received data wrong. So, image and all other datas are corrupted. As ethalon exchange with M5Stack attached. Correct SN is 0608 A233 0185 Normal Bug Test_MLX.zip

Kabron287 avatar Nov 01 '20 09:11 Kabron287

When I change to SlowSoftI2C driver, normal communication RESTORED. It is a definite BUG in I2C driver!

Kabron287 avatar Nov 02 '20 06:11 Kabron287

I have the same problem. The program read the EEPROM data from the sensor, but the data is corrupted.

LFerOrtiz avatar Mar 09 '22 20:03 LFerOrtiz