I hope someone can help me on this issue:
I got a problem with reading the CDC_RESULT_S*, there are sometimes wrong results read back from the sensor.
The PCB includes 3 AD7147-1, in summary i use 36 capacitive electrodes to measure a binary code (cupper lines on the other side)
to reduce the noice and interference i enable only one sensor at one time (POWER_MODE = full power mode OR full shutdown mode)
then i wait (continous read register) for one of the Bits in STAGE_COMPLETE_INT_STATUS to become 1, if that happend i read the corresponding CDC_RESULT_S* which result in a wrong value ( for example 0xFFFF instead of about 37000 )
i attached some pictures to illustrate two failure reads during read of 200 x 12 x 3 values (while nothing changed in the HW-settings)
And second a communication capture (bit-bang I2C) on a wrong Result Read, maybe someone can give me a hint on this issue.
Thanks for your help