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TMS320F28335: 程序经常出现low-power mode错误

Part Number: TMS320F28335


硬件:电压3.3V供电正常,内核电压1.9到2V之间;XRS高电平;仿真器XDS100V2;

现象:通过DSP28335去并行读取AD7606传输的数据,debug运行到

Uint16 *ExSRAM_TEST = (Uint16 *)0x00004000;

cc = *ExSRAM_TEST;

就会出现low-power mode,然后就自动退出debug;

而且如果取消读地址:即//cc = *ExSRAM_TEST;程序就可以完美执行

想请教:该如何解决?

不是电源功率的问题,因为我并联了电压,功率肯定够。有时候不会提示low power,程序涉及到读地址就会跑飞。

自己绘制的电路图,并且程序在测试上可以跑通。

AD原理图如下: