OK6410 led+蜂鸣器 裸机程序

/** ** 工程名称：led ** 功能描述流水灯+蜂鸣器 ** 硬件平台：研究生ARM11实验平台 ** 编译环境：RVDS ** 版本信息：v0.0 ** 编写时间：2012.4.11 ** 附加说明：原理图上的管脚对应关系如下： ** GPK0(LED8) GPK1(LED7) ** GPK2(LED6) GPK3(LED5) ** GPK4(LED4) GPK5(LED3) ** GPK6(LED2) GPK7(LED1) ** GPM3(NLED4) GPF15(PWM_TOUT1) ** 通过控制GPF15端的高低电平，来控制蜂鸣器的鸣叫；通过控制GPK端的高低电平，来控制LED灯的亮灭。 ** 修改记录：无 **/ /*寄存器地址宏定义*/ #define rGPKCON0 (*(volatile unsigned *)(0x7F008800)) #define rGPKDAT (*(volatile unsigned *)(0x7F008808)) #define rGPKPUD (*(volatile unsigned *)(0x7F00880C)) #define rGPMCON (*(volatile unsigned *)(0x7F008820)) #define rGPMDAT (*(volatile unsigned *)(0x7F008824)) #define rGPMPUD (*(volatile unsigned *)(0x7F008828)) #define rGPFCON (*(volatile unsigned*)(0x7F0080A0)) #define rGPFDAT (*(volatile unsigned*)(0x7F0080A4)) #define rGPFPUD (*(volatile unsigned*)(0x7F0080A8)) /*函数声明*/ void msDelay(int time); void GPIO_Init(void); void switch_on(void); void LedTest(void); void BeepOn(); void Beepoff(); /*主函数部分*/ void Main(void) { GPIO_Init(); LedTest(); } /*延时子函数*/ void msDelay(int time) { volatile unsigned int i,j; for(i=0;i<20000;i++) for(j=0;j<time;j++); } /*GPIO端口初始化*/ void GPIO_Init(void) { rGPKCON0 = 0x11111111; //output GPK0~GPK7 rGPKPUD = 0x00000000; //禁止上下拉 rGPKDAT = 0x00FF; //初始化灯全灭 rGPMCON = 0x111111; //output GPM0~GPM7 rGPMPUD = 0x000; //禁止上下拉 rGPMDAT = 0x08; //GPM3为高电平 rGPFCON =0x40000000; //令GPF15（PWM TOUT[1]）为output模式 rGPFPUD =0x00000000; //禁止上下拉 rGPFDAT =0x0000; //初始值为0 } /*锁存器上升沿*/ void switch_on(void) { rGPMDAT = 0x00; rGPMDAT = 0x08; //NLED4上升沿有效 } /*蜂鸣器打开*/ void BeepOn(void) { rGPFDAT =rGPFDAT|0x8000; } /*蜂鸣器关闭*/ void BeepOff(void) { rGPFDAT =0x0000; } /*led灯测试*/ void LedTest(void) { unsigned int k; rGPMDAT = 0x1F; msDelay(5); while(1) { for(k = 0; k < 9;k++) { rGPKDAT = ~(0x1<<k); switch_on(); msDelay(50); } for(k = 0; k < 8;k++) { rGPKDAT = ~(0x0080>>k); switch_on(); msDelay(50); } for(k = 0; k < 3;k++) { rGPKDAT=0x00FF; switch_on(); msDelay(50); rGPKDAT=0x0000; switch_on(); msDelay(50); BeepOn(); msDelay(50); BeepOff(); } } }