GTM900与STM32F103

#include "stm32f10x.h"#include "stm32f10x_usart.h"#include <stdio.h>#include <stdarg.h>extern u8 flag;extern unsigned char kaiguan[];extern char data[];extern long i;unsigned char output[];unsigned char num[]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};unsigned char at_[]={0x41,0x54,0x0D,0x0A}; //AT回车phone_num1[15]={0x22,0x31,0x35,0x38,0x35,0x32,0x39,0x30,0x34,0x33,0x34,0x32,0x22,0x0d, 0x0a};u8 a;void delay(int x){int y,i;for(i=0;i<20000;i++){for(y=0;y<x;y++) {}}}void GPIO_Config(){GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC |RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |RCC_APB2Periph_AFIO, ENABLE);RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2 ,ENABLE);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;GPIO_Init(GPIOA, &GPIO_InitStructure);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;GPIO_Init(GPIOA, &GPIO_InitStructure);}void USART1_Config(void){USART_InitTypeDef USART_InitStructure;USART_ART_BaudRate = 115200;USART_ART_WordLength = USART_WordLength_8b;USART_ART_StopBits = USART_StopBits_1;USART_ART_Parity = USART_Parity_No;USART_ART_HardwareFlowControl = USART_HardwareFlowControl_None;USART_ART_Mode = USART_Mode_Rx | USART_Mode_Tx;USART_Init(USART1, &USART_InitStructure);USART_Cmd(USART1, ENABLE);// USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);}void NVIC_Config(void){NVIC_InitTypeDef NVIC_InitStructure;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //配置2位高优先级（抢占优先级），2位子优先级（响应优先级）NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn; //USART2中断通道NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;//io引脚中断抢占优先等级为第二级。

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //io引脚中断子优先等级为第二级。

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_Init(&NVIC_InitStructure);}void USART1_Send_Byte(unsigned char SendData) //串口发送一个字节{USART_SendData(USART1, SendData);while( USART_GetFlagStatus(USART1,USART_FLAG_TXE)== RESET);}//发送字符串函数应用指针方法void UART1_Send_Str(unsigned char *s){unsigned char i=0;while(s[i]!='\0'){USART_SendData(USART1,s[i]);while( USART_GetFlagStatus(USART1,USART_FLAG_TXE)== RESET);//delay(2);i++;}}void readnum(){data1[15]=data[i];data1[14]=data[i-1];data1[13]=data[i-2];data1[12]=data[i-3];data1[11]=data[i-4];data1[10]=data[i-5];data1[9]=data[i-6];data1[8]=data[i-7];data1[7]=data[i-8];data1[6]=data[i-9];data1[5]=data[i-10];data1[4]=data[i-11];data1[3]=data[i-12];data1[2]=data[i-13];data1[1]=data[i-14];data1[0]=data[i-15];}void readsms(){//data2[0]=data1[3];// data2[1]=data1[4];UART2_Send_Str("AT+CMGR=");USART2_Send_Byte(data1[11]);USART2_Send_Byte(data1[12]);UART2_Send_Str("\r\n");}int main(void){ int k=0,l=0;GPIO_Config();NVIC_Config();USART1_Config();delay(50);UART1_Send_Str("AT\r\n");delay(100);UART1_Send_Str("ATI\r\n");delay(100);UART1_Send_Str("AT+CNMI=2,1\r\n"); //开启短信服务delay(100);UART1_Send_Str("AT+CMGF=1\r\n"); //英文模式delay(100);while(1){//UART2_Send_Str("A T+CMGD=50\r\n");delay(20);readnum();if(data1[6]==0x22 || data1[7]==0x22){delay(200);readsms();delay(200);readnum();UART1_Send_Str("所接收到数据为：");USART1_Send_Byte(data1[2]);USART1_Send_Byte(data1[3]);USART1_Send_Byte(data1[4]);USART1_Send_Byte(data1[5]);USART1_Send_Byte(data1[6]);}else{UART1_Send_Str(data[i]);delay(200);}}}#include "stm32f10x_lib.h" // 包含系统定义头文件，使用库文件必须要加入此头文件void Delay(void) //延时函数{unsigned long ik;for(ik=0;ik<0xffff8;ik++) ；}int main(void) //main函数{RCC_Configuration(); //配置系统时钟，设置系统时钟为72MNVIC_Configuration(); //配置中断RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD , ENABLE); //打开外设D的时钟//配置LED所在外设的7脚为输出GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7；GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //I/O口的方向GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //I/O口的最高输出速度GPIO_Init(GPIOD, &GPIO_InitStructure); //初始化外设D的7端口while (1){GPIO_SetBits(GPIOD, GPIO_Pin_7); //置位PD7，灭LED8灯Delay(); //延时GPIO_ResetBits(GPIOD, GPIO_Pin_7); //清PD7位，点亮LED8灯Delay(); //延时}}LED灯闪烁软件的实现比较简单，只需要轮流置低、置高控制LED8的I/O口线即可。

先来看看例程中的main.c文件中是如何来配置和启动CPU芯片的。

例程中的配置语句如下#include "stm32f10x_lib.h" // 包含系统定义头文件，使用库文件必须要加入此头文件int main(void) //main函数{RCC_Configuration(); //配置系统时钟，设置系统时钟为72MNVIC_Configuration(); //配置中断//使能ABCDE外设时钟。

如果要用到哪个外设，必须打开其外设时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD |RCC_APB2Periph_GPIOE, ENABLE);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All; //选中所有的管脚0--15GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //配置成模拟输入GPIO_Init(GPIOA, &GPIO_InitStructure); //把A端口所有脚配置成模拟输入GPIO_Init(GPIOB, &GPIO_InitStructure); //把B端口所有脚配置成模拟输入GPIO_Init(GPIOC, &GPIO_InitStructure); //把C端口所有脚配置成模拟输入GPIO_Init(GPIOD, &GPIO_InitStructure); //把D端口所有脚配置成模拟输入GPIO_Init(GPIOE, &GPIO_InitStructure); //把E端口所有脚配置成模拟输入//失能ABCDE外设时钟。