SPI FLASH INTERFACING

[Anonymous]

Hi Bob,

  Yesterday I was unable to send complete project today i make minimal project so please help me out.

[Bob_Marlowe]

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

[Anonymous]

Thanks But i use    SPIM_WriteTxData(transmitdata); in read and write so i have to replace all ??

[Anonymous]

I change it but still nothing is happened not showing  an array

[Bob_Marlowe]

Post your corrected project.

Bob

[Anonymous]

Hi Bob,

Here is my Corrected Project so please check it out

[Bob_Marlowe]

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

[Anonymous]

Still it is not working check it sir i change it according to you

[Bob_Marlowe]

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

[Bob_Marlowe]

Try this concept...

Bob

[Anonymous]

Hi Bob,

  As per instruction i run partially spi flash but still i am not getting proper array.

[Anonymous]

HIII, Shall i get code for SCB mode SPI