注:运用普中科技开发板测验时,需求拔掉Boot1插口
参考手册、电路图等拜见STM32单片机学习(1) 总记 学习材料+参考手册+LED灯
静态数码管试验
/** * 软件功用: 静态数码管试验（软件延时方法）* */#include "stm32f10x.h"#include "delay.h"void RCC_Configuration(void);void GPIO_Configuration(void);u8 Count=0;// 此表为 LED 的字模 0-f,"." unsigned char LED7Code[] = {~0x3F,~0x06,~0x5B,~0x4F,~0x66,~0x6D,~0x7D,~0x07,~0x7F,~0x6F,~0x77,~0x7C,~0x39,~0x5E,~0x79,~0x71,~0x80};/*函数: int main(void)功用: main主函数参数: 无回来: 无/int main(void){RCC_Configuration();GPIO_Configuration();delay_init(72);while(1){GPIO_Write(GPIOB,LED7Code[Count%17]<<8); //将Count数据送到GPIOB高八位Count++;delay_ms(500);//延时} }/*函数: void RCC_Configuration(void)功用: 复位和时钟操控 装备参数: 无回来: 无/void RCC_Configuration(void){ErrorStatus HSEStartUpStatus; //界说外部高速晶体发动状况枚举变量RCC_DeInit(); //复位RCC外部设备寄存器到默认值RCC_HSEConfig(RCC_HSE_ON); //翻开外部高速晶振HSEStartUpStatus = RCC_WaitForHSEStartUp(); //等候外部高速时钟准备好if(HSEStartUpStatus == SUCCESS) //外部高速时钟现已准别好{FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //舱位FLASH预读缓冲功用，加快FLASH的读取。一切程序中有必要的用法.方位：RCC初始化子函数晒干，时钟起振之后FLASH_SetLatency(FLASH_Latency_2); //flash操作的延时RCC_HCLKConfig(RCC_SYSCLK_Div1); //装备AHB(HCLK)时钟等于==SYSCLKRCC_PCLK2Config(RCC_HCLK_Div1); //装备APB2(PCLK2)钟==AHB时钟RCC_PCLK1Config(RCC_HCLK_Div2); //装备APB1(PCLK1)钟==AHB1/2时钟RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //装备PLL时钟 == 外部高速晶体时钟 * 9 = 72MHzRCC_PLLCmd(ENABLE); //使能PLL时钟while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) //等候PLL时钟安排妥当{}RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //装备体系时钟 = PLL时钟while(RCC_GetSYSCLKSource() != 0x08) //查看PLL时钟是否作为体系时钟{}}RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE); //答应 GPIOB、AFIO时钟}/*函数: void GPIO_Configuration(void）功用: GPIO装备参数: 无回来: 无/void GPIO_Configuration(void){GPIO_InitTypeDef GPIO_InitStructure; //界说GPIO初始化结构体GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOB, &GPIO_InitStructure); //PB用于输出操控LED灯}
动态数码管试验(74LS138译码器)
/** * 软件功用: 动态数码管试验（软件延时方法）* */#include "stm32f10x.h"#include "delay.h"/硬件接口界说*/#define LS138A GPIO_Pin_0 //=P2^7; //138译码器管脚界说#define LS138B GPIO_Pin_1 //=P2^6;#define LS138C GPIO_Pin_2 //=P2^5; /宏界说*/#define LS138a(x) x ? GPIO_SetBits(GPIOB, LS138A): GPIO_ResetBits(GPIOB, LS138A)#define LS138b(x) x ? GPIO_SetBits(GPIOB, LS138B): GPIO_ResetBits(GPIOB, LS138B)#define LS138c(x) x ? GPIO_SetBits(GPIOB, LS138C): GPIO_ResetBits(GPIOB, LS138C)u8 i=0,j;//此表为 LED 的字模, 共阴数码管 0-9 小数点 不显现 "0." 0x3F|0x80unsigned char Digit[] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x80,0x00};void RCC_Configuration(void);void GPIO_Configuration(void);/*函数: int main(void)功用: main主函数参数: 无回来: 无/int main(void){RCC_Configuration();GPIO_Configuration();delay_init(72);while(1){for(i=0; i<8; i++) { switch(i) { //138译码case 0: //0 0 0 LS138a(0); LS138b(0); LS138c(0);GPIO_Write(GPIOA,0x00);break; case 1: //1 0 0 CBA 001LS138a(1); LS138b(0); LS138c(0);GPIO_Write(GPIOA,Digit[i]);break; case 2: //0 1 0LS138a(0); LS138b(1); LS138c(0);GPIO_Write(GPIOA,Digit[10]); //小数点 break; case 3: //1 1 0 //留意是倒过来的 CBA 011LS138a(1); LS138b(1); LS138c(0);GPIO_Write(GPIOA,Digit[i]);break;case 4: //0 0 1LS138a(0); LS138b(0); LS138c(1); GPIO_Write(GPIOA,Digit[i]);break; case 5: //1 0 1LS138a(1); LS138b(0); LS138c(1);GPIO_Write(GPIOA,Digit[i]);break; case 6: //0 1 1LS138a(0); LS138b(1); LS138c(1);GPIO_Write(GPIOA,Digit[i]);break;case 7: //1 1 1LS138a(1); LS138b(1); LS138c(1);GPIO_Write(GPIOA,Digit[i]|0x80); //数字顺便小数点break; }delay_us(10); GPIO_Write(GPIOA,0x00); //不显现} } }/*函数: void RCC_Configuration(void)功用: 复位和时钟操控 装备参数: 无回来: 无/void RCC_Configuration(void){ErrorStatus HSEStartUpStatus; //界说外部高速晶体发动状况枚举变量RCC_DeInit(); //复位RCC外部设备寄存器到默认值RCC_HSEConfig(RCC_HSE_ON); //翻开外部高速晶振HSEStartUpStatus = RCC_WaitForHSEStartUp(); //等候外部高速时钟准备好if(HSEStartUpStatus == SUCCESS) //外部高速时钟现已准别好{FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //舱位FLASH预读缓冲功用，加快FLASH的读取。一切程序中有必要的用法.方位：RCC初始化子函数晒干，时钟起振之后FLASH_SetLatency(FLASH_Latency_2); //flash操作的延时RCC_HCLKConfig(RCC_SYSCLK_Div1); //装备AHB(HCLK)时钟等于==SYSCLKRCC_PCLK2Config(RCC_HCLK_Div1); //装备APB2(PCLK2)钟==AHB时钟RCC_PCLK1Config(RCC_HCLK_Div2); //装备APB1(PCLK1)钟==AHB1/2时钟RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //装备PLL时钟 == 外部高速晶体时钟 * 9 = 72MHzRCC_PLLCmd(ENABLE); //使能PLL时钟while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) //等候PLL时钟安排妥当{}RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //装备体系时钟 = PLL时钟while(RCC_GetSYSCLKSource() != 0x08) //查看PLL时钟是否作为体系时钟{}}RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE); //答应 GPIOA GPIOB、AFIO时钟}/*函数: void GPIO_Configuration(void）功用: GPIO装备参数: 无回来: 无/void GPIO_Configuration(void){GPIO_InitTypeDef GPIO_InitStructure; //界说GPIO初始化结构体GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); //PA用于输出操控数码管GPIO_Init(GPIOB, &GPIO_InitStructure); //PB用于输出操控138译码器}
