|
|
源程序如下:
- #include "DSP2833x_Device.h" // DSP2833x Headerfile Include File
- #include "DSP2833x_Examples.h" // DSP2833x Examples Include File
- #define LED1 GpioDataRegs.GPADAT.bit.GPIO0
- #define LED2 GpioDataRegs.GPADAT.bit.GPIO1
- #define LED3 GpioDataRegs.GPADAT.bit.GPIO2
- #define LED4 GpioDataRegs.GPADAT.bit.GPIO3
- #define LED5 GpioDataRegs.GPADAT.bit.GPIO4
- void configtestled(void);
- void main(void)
- {
- // Step 1. Initialize System Control:
- // PLL, WatchDog, enable Peripheral Clocks
- // This example function is found in the DSP2833x_SysCtrl.c file.
- InitSysCtrl();
- // Step 2. Initalize GPIO:
- // This example function is found in the DSP2833x_Gpio.c file and
- // illustrates how to set the GPIO to it's default state.
- // InitGpio(); // Skipped for this example
- InitXintf16Gpio(); //zq
- // Step 3. Clear all interrupts and initialize PIE vector table:
- // Disable CPU interrupts
- DINT;
- // Initialize the PIE control registers to their default state.
- // The default state is all PIE interrupts disabled and flags
- // are cleared.
- // This function is found in the DSP2833x_PieCtrl.c file.
- InitPieCtrl();
- // Disable CPU interrupts and clear all CPU interrupt flags:
- IER = 0x0000;
- IFR = 0x0000;
- // Initialize the PIE vector table with pointers to the shell Interrupt
- // Service Routines (ISR).
- // This will populate the entire table, even if the interrupt
- // is not used in this example. This is useful for debug purposes.
- // The shell ISR routines are found in DSP2833x_DefaultIsr.c.
- // This function is found in DSP2833x_PieVect.c.
- InitPieVectTable();
- configtestled();
-
- // LED1=1;
- // DELAY_US(10);
- // LED2=1;
- // DELAY_US(10);
- LED1=0;
- DELAY_US(10);
- LED2=0;
- DELAY_US(10);
- LED3=0;
- DELAY_US(10);
- LED4=0;
- DELAY_US(10);
- LED5=0;
- DELAY_US(10);
-
- while(1){
- LED1=~LED1;
- DELAY_US(100000);
- LED2=~LED2;
- DELAY_US(100000);
- LED3=~LED3;
- DELAY_US(100000);
- LED4=~LED4;
- DELAY_US(100000);
- LED5=~LED5;
- DELAY_US(100000);
- }
- }
- void configtestled(void)
- {
- EALLOW;
- GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 0; // GPIO0復(fù)用為GPIO功能
- GpioCtrlRegs.GPADIR.bit.GPIO0 = 1; // GPIO0設(shè)置為輸出
- GpioCtrlRegs.GPAMUX1.bit.GPIO1 = 0; // GPIO1 = GPIO1
- ……………………
- …………限于本文篇幅 余下代碼請(qǐng)從51黑下載附件…………
所有資料51hei提供下載:
lab1-GPIO_output_LED.rar
(412.62 KB, 下載次數(shù): 26)
2017-12-25 20:09 上傳
點(diǎn)擊文件名下載附件
|
|
