flashprogrammer

Hi ,

I used m25p64 to store SOF & Software .

I found :

1>when I connect the SDRAM DQM[1:0] to NIOS , the FPGA and uClinux can work after power up from m25p64 !

2>when I fix initial the SDRAM DQM[1:0] to 2'b00 , the FPGA can work after power up from m25p64 ,but the uClinux can not work! but,it can work when used:

nios2-configure-sof $SOPC_KIT_NIOS2/examples/test.sof

nios2-download -g zImage

nios2-terminal

I do not understand why ?

I want reduce the SDRAM's DQM[1:0] and CKE!

thanks

arens