T2080RDB Rev-C machine
In uboot, the NAND FLASH can be access using : nand dump 0 ... can printf some information
I run vxWorks OS in this RDB board, CPLD and NOR FLASH can work good, but NAND FLASH can not work good.
1、VxWorks OS version: 6.9
2、Initial IFC timing, and set the LAW values
3、NOR ---> CS0
CPLD ----> CS2
NAND ----> CS1
when i port the nand flash initial code to vxWorks, access the CS1 LAWs address space, i can not detect the CS1 singnal. and i found that when i just modify the NAND TIMING to work GPCM mode, CS1 falling edge singnal is present. why???? anybody can help me?