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6455 McBSP 无法使用的问题

Weike Huang
Prodigy 30 points


GEL初始化PLL，DDR，然后用JTAG载入代码。在main函数入口处观察，PERSTAT0 寄存器对应McBSP0STAT为011 即McBSP0 is in the static powerdown state

即使运行代码执行

PERLOCK = 0x0F0A0B00;

PERCFG0 = (0x00000001<<14);

PERSTAT0寄存器没有改变，且McBSP0配置寄存器对应的区域无法访问