开发环境

软件：ccs11.1.0
硬件：LAUNCHXL-F28379D
日期：2022.8.8

原理图

代码

在官方例程上删改

void delay(void)
 { Uint16 i; Uint32 j;
  for(i=0;i<32;i++) 
  	for (j = 0; j < 100000; j++); 
  }

void Gpio_setup(void)
{
   EALLOW;
      GpioCtrlRegs.GPAPUD.bit.GPIO31 = 0;   // Enable pullup on GPIO34
      GpioCtrlRegs.GPAMUX2.bit.GPIO31 = 0;  // GPIO34 = GPIO34
      GpioDataRegs.GPASET.bit.GPIO31 = 1;
      //GpioDataRegs.GPACLEAR.bit.GPIO31 = 1;
      GpioCtrlRegs.GPADIR.bit.GPIO31 = 1;   // GPIO34 = input

      GpioCtrlRegs.GPBPUD.bit.GPIO34 = 0;   // Enable pullup on GPIO34
      GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0;  // GPIO34 = GPIO34
      GpioDataRegs.GPBSET.bit.GPIO34 = 1;
      //GpioDataRegs.GPBCLEAR.bit.GPIO34 = 1;
      GpioCtrlRegs.GPBDIR.bit.GPIO34 = 1;   // GPIO34 = input
   EDIS;
}


void main(void)
{
   InitSysCtrl();
   DINT;
   InitPieCtrl();
   IER = 0x0000;
   IFR = 0x0000;
   InitPieVectTable();
   Gpio_setup();
   while(1)
        {
        GpioDataRegs.GPATOGGLE.bit.GPIO31=1;
        GpioDataRegs.GPBTOGGLE.bit.GPIO34=1;
        delay();
        }
}
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