IOWR, IOWR_32DIRECT, alt_flash_read... need help to get the bits

--- Quote Start ---

Thanks for your reply BillA. I already tried that, but did not matched the addresses right I think.

Does alt_read_flash read Bytes or Bits? So dataSize*8=Bit or dataSize=Bit?

--- Quote End ---

Bytes. I don't know if there is optimization to write 32-bits at a time to SDRAM but the call is bytes (like C's fread) and the EPCS contents are placed byte for byte in order.

--- Quote Start ---

I have got a EPCS64 Serial Device and my SDRAM Master Width is 32Bit wide. How would you count?

--- Quote End ---

Use the following to read 32 bytes at a time. But there's no reason to do this - one call will suffice - dataSize is the bytes to copy. Look at alt_read_flash as if it were memcpy:

while(dataSize>32)
  {
  ret_code = alt_read_flash(my_epcs, epcsAddr,  sdramAddr, 32);
  epcsAddr+=32, sdramAddr+=32;
  dataSize-=32;
  }
if(dataSize>0)
  ret_code = alt_read_flash(my_epcs, epcsAddr,  sdramAddr, dataSize);

Bill