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Something wrong with I2C #97

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Kabron287 opened this issue Nov 1, 2020 · 2 comments
Open

Something wrong with I2C #97

Kabron287 opened this issue Nov 1, 2020 · 2 comments

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@Kabron287
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Kabron287 commented Nov 1, 2020 •
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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
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When I change to SlowSoftI2C driver, normal communication RESTORED.
It is a definite BUG in I2C driver!

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

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@Kabron287 @LFerOrtiz