28335在150MHz时，端口连续赋值在程序运行时赋值出错

借用回复:

有的芯片对IO口的操作有些需要注意的地方，例如对TMS320x2833x, 2823x的某一个GPIO进行置1清零操作，不建议直接对其DAT数据寄存器进行赋值，而是建议使用SET、CLEAR或TOGGLE来完成。

这在其相关文档中有说明：

When using the GPxDAT register to change the level of an output pin, you should be cautious not to
accidentally change the level of another pin. For example, if you mean to change the output latch level
of GPIOA0 by writing to the GPADAT register bit 0, using a read-modify-write instruction. The problem
can occur if another I/O port A signal changes level between the read and the write stage of the
instruction. You can also change the state of that output latch. You can avoid this scenario by using
the GPxSET, GPxCLEAR, and GPxTOGGLE registers to load the output latch instead.

如果你是要置1,

GpioDataRegs.GPASET.bit.GPIO24=1；

GpioDataRegs.GPASET.bit.GPIO26=1；

如果你是要置0,

GpioDataRegs.GPACLEAR.bit.GPIO24=1；

GpioDataRegs.GPACLEAR.bit.GPIO26=1；