[SOLVED] Interface with I2C-bus controlled synthesizer (TSA5511)

Thanks again, bartjenniskens
I will read again about the flags for sure as i have all the datasheet in pdf.
Correct me if i am wrong but i realise that you agree with this troubleshooting that the problem is within PIC and not the TSA5511?
Last question, if i manage to read the existing PIC memory can i come back to you for advice?
Thanks in advance for your help.
Brgds
Dimis

Indeed, I would be suspicious about the PIC than I would be about the TSA5511.

Sure, but assembly is not my strongest point.

Many thanks i will keep you posted
Brgds
Dimi

Hi again, here is my latest actions.
please be informed that programming is neither my strongest point, i have purchase PICkit 3 that i have connect and using the MPLAB software after few corrective attempts i manage to read the PIC16F628A. Within i am able to see all memory partitions like Program memory, Configuration bits, EE data memory, User ID memory and Device ID memory.
It seams all are there as i found my name that was entered during previous normal operation. After read I try a Verify action and it comes with the following message.
Reading…

The following memory area(s) will be read:
program memory: start address = 0x0, end address = 0x7ff
configuration memory
EEData memory
User Id Memory
Read complete

Verifying…

The following memory areas(s) will be verified:
program memory: start address = 0x0, end address = 0x7ff
configuration memory
EEData memory
User Id Memory

Verification successful.

To my opinion it seams to be OK what do you believe?
I remain.
Dimis