Hi, The images in your e-mail are missing, at least on my side - could you please resend them or, even better, upload them somewhere and provide links? Also if you can share target settings and possibly some code snippet where you access I2C it could help here as well.
Best, Andrzej On Wed, Apr 3, 2019 at 5:17 AM GE Bingjing (BST/ESA4) < [email protected]> wrote: > Hi sir: > > Nice to meet you, We are from Bosch Sensortec, now we are using > Mynewt Core 1.5.0 on Nordic nRF52840, we have question about the I2C > communication. > > As you can see from the picture below, the overall result of I2C > communication is successful, but there are a lot of NAK before a ACK read. > this is due to the abnormal behavior of SCL. > > Do you have any suggestion on this? Do we need to change some > configuration/Mynewt Core code to fix this? > > > > > > > > The anolog waveform of I2C communication is also not so good(shown as > below), can we change some configuration/Mynewt Core code to improve it? > > > > Best regards, > > > > *Bingjing GE BST/ESA3.2 * > Tel. +86 21 2218-1915 > >
