Hello, I want to use at the nRF52832 a temperature sensor TMP108 and an EEPROM via TWI bus which are connected to Pin 5 (SDA) and Pin 6 (SCL). I made a lot of time until understanding that at the declaration of the sensor using nrf_drv_twi_config_t 'Pin' is written but 'port' (0.03 / 0.04) are needed... Finally I have now the typical signals for SCL and SDA (at my own board as well as at the PCA10040). Only the Acknowledge doesn't appear which is clear for the PCA10040. At my own board I tried separately the sensor (at address 0x90/0x91) by reading and writing; the EEPROM at address 0x10 doesn't give any Acknowledge neither. I had before 4k7 Pull-Ups which I soldered out using only the internal pull-ups - at 100kHz this seems still working and at the oscilloscope looks fine. The high-levels are at about 2.5V and the low-level at about 0.3V - could this be a problem? Is there any possibility to check if the configuration is ok when the acknowledge should appear? Do I need the twi-master-functions for this (in the first step I only need the temperature sensor) or are the twi functions sufficient? Thanks in advance.
