twi_master_with_twis_slave - incorrect EEPROM data

[Arun]

Greetings, I am interfacing AT24C01A(EEPROM) with nRF52 ,SDK11,PCA10040.

For writing to the EEPROM and reading data fromn EEPROM, I am using the following code,

I have attached images of read function and write function.Kindly have a look.

I am not able to write and read data to and from EEPROM device.

Thanks

[Jakub Rzeszutko]

Hi,

If I see in your screens correctly you are using SDK11. Do you have any communication with EEPROM? You can try TWI Scanner example to check if connection is fine. But it is available in newer SDK: SDK12/SDK13/SDK14 (\sdk\nrf5\examples\peripheral\twi_scanner)

[Arun]

Thanks for the response.I have communication with the EEPROM device. But the problem is I cannot read and write.

[Arun]

I also programmed the same EEPROM device with an arduino to write data and tried reading the data with nrf52,but i am reading incorrect data.

[Jakub Rzeszutko]

does "ret" provide any error indication or you have NRF_SUCCESS during read and write operation?

[Arun]

I have NRF_SUCCESS in all transactions. My eprom device memory can hold 256 Byte data.I am looking at simulator eeprom simulated example from the sdk. what changes do i need to make in the file to read data from the eeprom device. Thanks