Hi Team,
Currently we are performing the communication between the GPMC and NoR flash kind of slave and we're dooing 16 bit access non multipluxed asynchrounous read, The GPMC config values we're using are dumped in the below snippet
We configured the CS0 to base address 0x0100 0000, But when we're performing read operation the NOR device is not responding. When we tried to do read operation for the register GPMC_NAND_COMMAND (0x5000 007C) the NOR device is responding and CS0,OE, WAIT,ADD[15:0],Data[15:0] signals are coming properly like we expected. By using logic analyzer we're seeing the signals are coming like we expect that same thing is shown in below snippet
GPMC read operation is not happening when we're performing read access to the actual chip select mapped region(i.e.,0x0100 0000 to 0x00FF FFFF), But unexpectedly GPMC read access is triggered when we're perform read to the location (0x5000 007C). Please help us in understanding the behaviour and slove our issue.
Regards,
Sarath