nios软核编译器_关于Qsys创建的NIOS软核，可以Run as，但是下载出错的问题

Run as可以，但是下载就出错，信息如下

Info: 2012-2-19 15:50:34 - (良好) sof2flash: Starting

Info: Info: *******************************************************************

Info: Info: Running Quartus II Convert_programming_file

Info: Info: Command: quartus_cpf --no_banner --convert --device=EPCS128 --option=……epcs_flash_controller.opt …….sof ……_epcs_flash_controller.pof

Info: Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings

Info:     Info: Peak virtual memory: 152 megabytes

Info:     Info: Processing ended: Sun Feb 19 15:50:36 2012

Info:     Info: Elapsed time: 00:00:02

Info:     Info: Total CPU time (on all processors): 00:00:02

Info: Info: *******************************************************************

Info: Info: Running Quartus II Convert_programming_file

Info: Info: Command: quartus_cpf --no_banner --convert ……_epcs_flash_controller.pof ……_epcs_flash_controller.rpd

Info: Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings

Info:     Info: Peak virtual memory: 147 megabytes

Info:     Info: Processing ended: Sun Feb 19 15:50:39 2012

Info:     Info: Elapsed time: 00:00:03

Info:     Info: Total CPU time (on all processors): 00:00:04

Info: 2012-2-19 15:50:39 - (良好) sof2flash: Done

Info: Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Info: Resetting and pausing target processor: FAILEInfo: Leaving target processor paused

Error: Error code: 4 for command: $SOPC_KIT_NIOS2/bin/nios2-flash-programmer "……_epcs_flash_controller.flash" --base=0x0 --epcs --sidp=0x1890 --id=0x0 --timestamp=1329570479 --device=1 --instance=0 '--cable=USB-Blaster on localhost [USB-0]' --program –verbose

在网上搜索 Resetting and pausing target processor: FAILE

说原因是

1.管脚分配错误

2.nios核心没有工作

3.pll问题

经检查，问题没有解决，于是自己查资料，请教高人

解决方法：

1.重新建立各种新工程，最简系统---失败

2.在Qsys中使用“Create Global Reset Network”分配reset信号(和分配地址和中断在一起)。问题解决

分配完之后多了jtag_debug_module_reset信号的连线

而且后面的epcs和jtag的中断号也需要分配