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TMS320F28388D: 关于2838xD的启动问题，运行到CoreM4启动boot的时候偶尔会导致DSP启动失败。

user4486550
Intellectual 586 points
Part Number: TMS320F28388D


如题，我在使用28388d的三个核，先启动CPU2，启动成功后在启动CoreM4,但是发现在脱机运行时偶尔（重复上下电<100次）发现运行到CoreM4的Boot的时候，整个DSP都宕机了一样，我判断宕机是因为我在CPU1初始化配置的GPIO点亮一个灯也会随着宕机而熄灭，也就是DSP的CPU1和CPU2都没有启动成功，如果我只是启动CPU2的话就很正常（重复上下电>500次）,启动的代码我是按照例程写的：

Boot CPU2:

Cpu1toCpu2IpcRegs.CPU!TOCPU2IPCBOOTMODE = 0X5A00C803;

Cpu1toCpu2IpcRegs.CPU1TOCPU2IPCSET = 0X0000001;

EALLOW;

DevCfgRegs.CPU2RESCTL.all = 0xA5A50000;

EDIS;

while(DevCfgRegs.RSTSTAT.all == 0);

Boot CoreM4:

Cpu1toCmIpcRegs.CPU1TOCMIPCBOOTMODE = 0X5A007D03;

EALLOW;

*(volatile unsigned long *)0x5DC00u = 0XA5A50001;

while(((*(volatile unsigned long *)0x5DC00u & 0x2)) == 2);

*(volatile unsigned long *)0x5DC00u = 0XA5A50000;

EDIS;