使用de1的sdram遇到问题: 在nios2 ide 的system library properties 中,将memory的任何一项改成sdram,在build 时没问题,但在board上运行时出现下列错误信息: Using cable "USB-Blaster [USB-0]", device 1, instance 0x00 Processor is already paused Initializing CPU cache (if present) OK Downloading 00400000 ( 0%) Downloading 00800020 (94%) Downloaded 61KB in 0.8s (76.2KB/s) Verifying 00400000 ( 0%) Verifying 00800020 (94%) Verify failed between address 0x800020 and 0x800DEB Leaving target processor paused
sdram address 是0x800000,offset 0x20是exception address。没弄懂是为什么。 已经添加了pll,相移-60.75degree 请各位大侠指教!谢了先 |