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TMS320C6678: C6678通过spi cs1加载程序问题

Part Number: TMS320C6678

你好:

       自研c6678板卡(YB20 xxxxxx)通过spi cs1启动,通过配置bootmode7和8为01b,即通过spi cs1启动,发现:

1、上电后,cs1电平一直为high,是不是芯片不支持cs1启动?

2、bootmode7和8配置为10,即cs0启动,发现cs0电平一直为high;只有bootmode7和8为00时,cs0的电平测量,能正常拉低,

是不是spi启动,只支持cs0启动?

cs0启动的话,bootmode7和8是不是只能配成00?

谢谢