Tech Support > Computer Hardware > Microprocessors > reg in dspi development
reg in dspi development
Posted by moonboy on May 11th, 2008


Hi,

I am developing dspi code for mcf54452 board. I am communicating processo
with EEPROM (AT25080A) slave device. Write function is working fine. Bu
the read function is not working.

Write seq:
----------

1. Send WREN command
2. Send write Instruction
3. Send address where to be data written
4. Send data

Note: i checked the write seq by seeing the signals in scope. Every byt
had been sent out (Sout) perfectly.

Read seq:
--------
1. Send read Instruction
2. Send address where from the data to be read.


Note: i checked the read seq by seeing the signals in scope.
1. No SCK signals
2. No DATA (Sin)
3. Chip select in inactive state (high)


I checked with pdfs. i am not getting any solution for this problem.

So can you guide me to solve this problem?

Reply me as soon as possible

Regards,
Karthikeyan.








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