BME68X API with BME688 - No New Data Found

[Value_Judgement · Accepted solution]

Issue resolved. The I2C writes needed two bytes at a time, address and data value, instead of sequential writes with one byte at a time, alternating between register address and value. Stated in the datasheet but I just took the wrong implementation with the Nordic SDK I2C write function. 

[BSTRobin]

Hello Value_Judgement,

Good news.

Yes, I2C write and read had different time sequence.

[Rosso9]

Hi, I've got the same problme. Please, could you share the commn.c file where you have written the read write i2c functions?

I'm sorry to ask, but I cannot resolve the problem.

Thanks

[Value_Judgement]

Your common.c should be something similar to the API example but the problem is likely in your I2C write/read functions. Make sure you're actually writing and reading the right data to and from the right registers in the right format (page 46 in the datasheet).  

[Rosso9]

Yeah, I have looked at pag 46 of the datasheet and I think I respect what they ask, but still not working.

Could you let me see your bme68x_i2c_write and bme68x_i2c_read functions, please? I do not know how to make them in a different way