1、初始化系统,并打开系统时钟SysCtrlRegs.PCLKCR3.bit.GPIOINENCLK = 1; // GPIO 2、设置GPIO口输入输出方向 GpioCtrlRegs.GPADIR.bit.GPIO0 = 1; 3、设置GPIO的值 GpioDataRegs.GPATOGGLE.bit.GPIO0 = 1; 注GPIO GpioDataRegs口如下: union GPADAT_REG GPADAT; // GPIO Data Register (GPIO0 to 31) union GPADAT_REG GPASET; // GPIO Data Set Register (GPIO0 to 31) union GPADAT_REG GPACLEAR; // GPIO Data Clear Register (GPIO0 to 31) union GPADAT_REG GPATOGGLE; // GPIO Data Toggle Register (GPIO0 to 31) union GPBDAT_REG GPBDAT; // GPIO Data Register (GPIO32 to 38) union GPBDAT_REG GPBSET; // GPIO Data Set Register (GPIO32 to 38) union GPBDAT_REG GPBCLEAR; // GPIO Data Clear Register (GPIO32 to 38) union GPBDAT_REG GPBTOGGLE; // GPIO Data Toggle Register (GPIO32 to 38)
|