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TMS320F2812复位

Other Parts Discussed in Thread: TMS320F2812

看门狗没有使能,检测电源3.3V也没有变低过程,但在对地址线进行操作时,如下代码:

p = (int*)0x00080203;
i = *p;

当执行第一条语句时,发现2812的XRS引脚有一个25ms的低电平,导致TMS320F2812复位,不知道是什么原因导致的,望能解答,谢谢