SPI FLASH INTERFACING

You opened a new thread again, please reply to your original post.

   while(!(SPIM_ReadStatus() & SPIM_STS_TX_FIFO_EMPTY));

   SPIM_WriteTxData(transmitdata);

   CS_Write(1u); // This will remove CS before transmission is complete

Better use

   SPIM_WriteTxData(transmitdata);

   while(!(SPIM_ReadStatus() & SPIM_STS_TX_FIFO_EMPTY));

   SPIM_WriteTxData(transmitdata);    CS_Write(1u); // Transmission complete, remove CS

Bob

Post your corrected project.

Bob

My fault, something got scewed up in this editor.

Your code (excerpt):

SPIM_WriteTxData(transmitdata); // Write a command byte

   while(!(SPIM_ReadStatus() & SPIM_STS_SPI_DONE)); // Wait until data transmitted *** Try using the DONE flag

   SPIM_WriteTxData(transmitdata);    // *** This is a superfluid write. Deloete that

CS_Write(1u); // Transmission complete, remove CS. *** Look into eeprom datasheet for CS remaining low or not for complete transaction

CyDelay(5);

CS_Write(0u); // Taking CS low for next write

transmitdata=data;

SPIM_WriteTxData(transmitdata);// Write data byte

   while(!(SPIM_ReadStatus() & SPIM_STS_SPI_DONE)); // Wait until data transmitted

SPIM_WriteTxData(transmitdata);  // UNUSED EXTRA WRITE

setAddress(address); // Setting the address after sending command and data. Is this correct?

CS_Write(1u); // Transmission is still in progress. Wait for transmission done!

Change the other parts of your program accordingly.

Bob

What is the part number of the eeprom you use? Link to datasheet, please.

What hardware do you use, self-made? Cypress Kit?? Which one (Part number)

Bob

Try this concept...

Bob