DE0 with uClinux

Thanks you sir, there is a pin assignments problem,now i rectified, but it showed another error

Using cable USB-Blaster [7-1] , device, instance 0x00

pausing target processor ok

Initializing CPU cache (if present)

ok

Downloaded 1350kb in 267s(505kb/s)

verified 000000(0%)

verify failed between add 0xD00000 & 0xD02AA5

leaving target processor paused.

Where is the mistake?

Thanks ,

alex.

This is probably something wrong with the SDRAM interface. Either bad pin assignments or bad timing.

If you FPGA is big enough you could design a system with some on-chip RAM and then run a memory test application from there to test the SDRAM. For that you will need to create a new BSP that uses the on-chip RAM for all sections (text, bss, data), compile with "optimize for space" and the small C library, and select the memory test template when you create your application.