Hi all,
I am using C28346 and trying to programme an external SPI flash.
I use the Sdflash source code supplied by spectrum digital which is written to support Atmel AT25F1024A flash.
I have another flash EN25F40, which has the same instructions as AT25F1024. I also tried programming different flash types as well.
The problem is that flash seems not to respond to any SPI command. The sdflash code sends a "write enable" command (06h) first, and then sends a "read status register" command (05h). Using oscilloscope, I see that the CS, SPI Clock and SPI DI signals are fine. However, there is no output on SPI DO line. I mean flash do not send back the status register value.
Hardware WP pin of the flash is high and Vcc is within limits.
Does anyone have any idea?
Thanks in advance,
Kerem