Hi, I am developing dspi code for mcf54452 board. I am communicating processor with EEPROM (AT25080A) slave device. Write function is working fine. But 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 byte 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.
reg in dspi development
Started by ●May 11, 2008