This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
板子上有四片c6678,其中有两片如果调试时使用system reset复位,会导致ddr3控制寄存器出问题,0x21000000这部分寄存器全部变成0,也无法再写,最终初始化ddr3失败。另外两片dsp是好的,如果不去使用system reset的话,都可以正常初始化。请问是什么原因?通过jtag复位dsp属于软复位吗?可能什么原因导致ddr3控制寄存器无效?