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DM6437 boot后EMIF工作不正常



用DM6437的CE2和CE3空间对FPGA进行读写操作,CCS在线仿真没问题,数据都正确,示波器也可以抓到WE,RD信号。

但是当把调试好的程序烧进Flash后,重启,数据交互不正常了。

去掉gel,load symbols,单步调试,发现DM6437读取FPGA数据正常,但是DM6437不能向FPGA写数据,也抓不到WE信号。

什么原因呢?