1. 基于标准外设库的软件开发2. 基于固件库实现串口输出(发送)程序3. 红外接收实验

1. 用户应用层2. 操作系统及中间件接口层3. CMSIS层: CMSIS层起着承上启下的作用    1) 一方面该层对硬件寄存器层进行统一实现，屏蔽了不同厂商对Cortex-M系列微处理器核内外设寄存器的不同定义    2) 另一方面又向上层的操作系统及中间件接口层和应用层提供接口，简化了应用程序开发难度，使开发人员能够在完全透明的情况下进行应用程序开发。也正是如此，CMSIS层的实现相对复杂4. 硬件寄存器层

1. 使用外设驱动: 这时应用程序开发基于外设驱动的API(应用编程接口)。用户只需要配置文件"stm32f10x_conf.h"，并使用相应的文件例如"stm32f10x_ppp.h/.c"即可2. 不使用外设驱动: 这时应用程序开发基于外设的寄存器结构和位定义文件(需要了解单片机的大量硬件、引脚细节)

STM32F10x_LD：STM32小容量产品STM32F10x_MD：STM32中容量产品STM32F10x_HD：STM32大容量产品

1. 文件"stm3210f.h"中的中断IRQ定义 2. 启动文件中的向量表，小容量，中容量，大容量产品各有一个启动文件3. 外设存储器映像和寄存器物理地址4. 产品设置: 外部晶振(HSE)的值等5. 系统配置函数

http://baike.baidu.com/link?url=X3kL65ER2yug2m-_XhgXTggAd7uH7VCnyhdaJ2ddxYt-Nj8oqB46tWDhNngqyrPnuAzzs8wJe56NzIJi-6zWWahttp://www.cnblogs.com/emouse/archive/2011/11/29/2268441.html

void USART_SendData(USART_TypeDef* USARTx, uint16_t Data)发送函数，它告诉我们很重要的一点，那就是串口是以"位"来传输的FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG)用它来得知串口的状态 

#include <stdio.h>#include <stdarg.h>/************************************************** Function Name  : USART1_printf* Description    : * Input          : * Output         : NONE* Return         : NONE*************************************************/void USART1_printf (char *fmt, ...) {   char buffer[CMD_BUFFER_LEN+1];    u8 i = 0;     va_list arg_ptr;   va_start(arg_ptr, fmt);     vsnprintf(buffer, CMD_BUFFER_LEN+1, fmt, arg_ptr);   while ((i < CMD_BUFFER_LEN) && buffer[i])   {     USART_SendData(USART1, (u8) buffer[i++]);     while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);    }   va_end(arg_ptr); }/************************************************** Function Name  : USART1_SendData* Description    : 串口1发送* Input          : char *Buffer* Output         : NONE* Return         : NONE*************************************************/void USART1_SendData(char *Buffer){  u8 Counter = 0;  while( (Counter == 0) || (Buffer[Counter] != 0) ) //条件...  {    USART_SendData(USART1, Buffer[Counter++]);    while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);            }}

/*---------------------------------------------------------------------------- * Name:    Hello.c * Purpose: Hello World Example * Note(s): *---------------------------------------------------------------------------- * This file is part of the uVision/ARM development tools. * This software may only be used under the terms of a valid, current, * end user licence from KEIL for a compatible version of KEIL software * development tools. Nothing else gives you the right to use this software. * * This software is supplied "AS IS" without warranties of any kind. * * Copyright (c) 2012 Keil - An ARM Company. All rights reserved. *----------------------------------------------------------------------------*/#include <stdio.h>               /* prototype declarations for I/O functions  */#include <stm32f10x.h>           /* STM32F10x definitions                     */#include <stm32f10x_usart.h> #include <stdarg.h>#include <string.h>#define CMD_BUFFER_LEN 64u static void delayms(int cnt){    int i;     while(cnt--)        for (i=0; i<7333; i++);}void USART2_printf (char *fmt, ...){    char buffer[CMD_BUFFER_LEN+1] = {0};      u8 i = 0;     int len = 0;    va_list arg_ptr;        memset(buffer, ‘\x00‘, CMD_BUFFER_LEN+1);        len = strlen(fmt) + 1;    va_start(arg_ptr, fmt);     vsnprintf(buffer, len, fmt, arg_ptr);    while ((i < len) && buffer[i] != ‘\x00‘) {        USART_SendData(USART1, (u8) buffer[i++]);        while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)            ;     }    va_end(arg_ptr);}extern void SER_Init(void);                                   /* see Serial.c *//*----------------------------------------------------------------------------  main program *----------------------------------------------------------------------------*/int main (void)  {               /* execution starts here                     */  SER_Init ();                   /* initialize the serial interface           */  USART2_printf ("Hello World\n");      /* the ‘printf‘ function call                */  while (1) {                    /* An embedded program does not stop and     */    USART2_printf ("Hello World\n");  /* ... */                 /* never returns. We use an endless loop.    */        delayms(3000);  }                              /* Replace the dots (...) with your own code.*/}

static void delayms(int cnt){    int i;     while(cnt--)        for (i=0; i<7333; i++);}

http://www.cnblogs.com/mocet/p/stm32f10x_usart_InputOutout_Function_Design_1.html

/**********************************************************************************************************************************************************************/#include "stm32f10x.h"#include "stm32f10x_exti.h"//#include "stm8s_beep.h"#include "stm32f10x_systick.h"  #define    LED1_0      GPIOD->BRR  = 0x00000100#define    LED2_0      GPIOD->BRR  = 0x00000200#define    LED3_0      GPIOD->BRR  = 0x00000400#define    LED4_0      GPIOD->BRR  = 0x00000800#define    LED1_1      GPIOD->BSRR = 0x00000100#define    LED2_1      GPIOD->BSRR = 0x00000200#define    LED3_1      GPIOD->BSRR = 0x00000400#define    LED4_1      GPIOD->BSRR = 0x00000800  #define    IR_Hongwai_0         GPIOE->BRR  = 0x00000004   //???????#define    IR_Hongwai_1         GPIOE->BSRR = 0x00000004   //???????#define    IR_Hongwai_x   GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_2)  //????????unsigned int TimeByte;volatile unsigned int IR_Tireafg[4] = {0, 0, 0, 0};//unsigned int IR_xidwrit[8] = {0, 0, 0, 0, 0, 0 ,0, 0};/**   GPIO???????*/void GPIO_InitStructReadtempCmd(void){GPIO_InitTypeDef GPIO_InitStruct;GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2;     //??GPIO??GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;    //?????????GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;   //??????50MHZGPIO_Init(GPIOE, &GPIO_InitStruct);      //???????GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5;GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;   //??????????  GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStruct);GPIO_InitStruct.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOD, &GPIO_InitStruct);}  /**   ?????????*/void RCC_APB2PeriphReadtempyCmd(void){RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);  //??GPIOB????RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);  //??GPIOE????RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);  //??GPIOD????RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);  //??AFIO????????}/** ?????????Count1 * 10us */unsigned int IR_HongwaiRead_LSB_Cmd(){unsigned int Count1 = 0;     //??????IR_Hongwai_0;        //???????do           //?????  {   Count1++;       //?????1   Delay_10us(1);      //??10us  }  while(IR_Hongwai_x == 0);  //???????????????????????     return(Count1);        //????????}/** ?????????Count2 * 10us */unsigned int IR_HongwaiRead_MSB_Cmd(){unsigned int Count2 = 0;     //??????IR_Hongwai_1;        //???????do           //?????  {             Count2++;       //?????1   Delay_10us(1);      //??10us  }  while(IR_Hongwai_x == 1);  //??????????????????????? return(Count2);   }/**   ????*/int main(void){SystemInit();        //?????????72M??SYSTICK_InitStructReadTCmd();    //???SysTick??????RCC_APB2PeriphReadtempyCmd();    //????????????GPIO_InitStructReadtempCmd();    //???GPIO???????EXTI_InitStructReadtempCmd();    //???EXTI???????NVIC_InitStructReadtempCmd();    //???NVIC???????while(1){  }       }/**   EXTI?????????*/ void EXTI2_IRQHandler(void){unsigned char i = 0; unsigned int Countline2 = 0;IR_Hongwai_1;Countline2 = IR_HongwaiRead_LSB_Cmd();   //?????? 9ms??if((Countline2 < 286) || (Countline2 > 305)) //??8694us ??9272us ????????{  return;         }Countline2 = IR_HongwaiRead_MSB_Cmd();   //?????? 4.5ms??if((Countline2 < 138) || (Countline2 > 155)) //??4195us ??4712us ????????{  return;}TimeByte = 0;for(i = 1; i < 14; i++){  TimeByte = TimeByte >> 1;  Countline2 = IR_HongwaiRead_LSB_Cmd();    //?????0.56 ??  if((Countline2 < 14) || (Countline2 > 22)) //??425us ??851us ????????  {   return;  }    Countline2 = IR_HongwaiRead_MSB_Cmd();    //?????0.56??  if((Countline2 < 14) || (Countline2 > 65)) //??425us ??1793us ????????  {   return;  }  if( Countline2 > 50)    //???????1300us?1???0  {   TimeByte |= 0x80;    //?1  }}   IR_Tireafg[0] = TimeByte;  TimeByte = 0; for(i = 14; i < 27; i++){  TimeByte = TimeByte >> 1;  Countline2 = IR_HongwaiRead_LSB_Cmd();  if((Countline2 < 14) || (Countline2 > 22))  {   return;  }    Countline2 = IR_HongwaiRead_MSB_Cmd();  if((Countline2 < 14) || (Countline2 > 65))  {   return;  }  if( Countline2 > 50)  {   TimeByte |= 0x80;   }}   IR_Tireafg[1] = TimeByte;  TimeByte = 0;for(i = 27; i < 35; i++){  TimeByte = TimeByte >> 1;  Countline2 = IR_HongwaiRead_LSB_Cmd();  if((Countline2 < 14) || (Countline2 > 22))  {   return;  }    Countline2 = IR_HongwaiRead_MSB_Cmd();  if((Countline2 < 14) && (Countline2 > 65))  {   return;  }  if( Countline2 > 50)  {   TimeByte |= 0x80;   }}  IR_Tireafg[2] = TimeByte;     TimeByte = 0;for(i = 35; i < 43; i++){  TimeByte = TimeByte >> 1;  Countline2 = IR_HongwaiRead_LSB_Cmd();  if((Countline2 < 14) || (Countline2 > 22))  {   return;  }    Countline2 = IR_HongwaiRead_MSB_Cmd();  if((Countline2 < 14) || (Countline2 > 65))  {   return;  }  if( Countline2 > 52)  {   TimeByte |= 0x80;   }}  IR_Tireafg[3] = TimeByte;//************************?????????***************************************//         /* if(IR_Tireafg[0]!= 0x11A)      {        return;    }   */                //************************?????????***************************************///*  do    {     if(IR_Tireafg[2] == ~IR_Tireafg[3])      {      flag = 0;      }    } while(flag == 1);    *//*   if(IR_Tireafg[2] != ~IR_Tireafg[3])     {     flag = 0;     }    */     //************************??????LED??**************************************//     switch  (IR_Tireafg[2])    {     case         0x00:   //?? 0         LED1_1; LED2_0; LED3_0; LED4_0;         break;               case         0x01:    //?? 1         LED1_0; LED2_1; LED3_0; LED4_0;         break;               case         0x02:   //?? 2         LED1_0; LED2_0; LED3_1; LED4_0;         break;               case         0x03:   //?? 3         LED1_0; LED2_0; LED3_0; LED4_1;         break;      case         0x04:   //?? 4         LED1_0; LED2_0; LED3_1; LED4_0;         break;      case         0x05:   //?? 5         LED1_0; LED2_1; LED3_0; LED4_0;         break;      case         0x06:   //?? 6         LED1_1; LED2_0; LED3_0; LED4_0;         break;      case         0x07:   //?? 7         LED1_1; LED2_0; LED3_1; LED4_0;         break;      case         0x08:   //?? 8         LED1_1; LED2_0; LED3_0; LED4_1;         break;              case         0x09:   //?? 9         LED1_0; LED2_1; LED3_0; LED4_1;         break;       case         0x15:   //???         LED1_0; LED2_1; LED3_1; LED4_0;         break;      case         0x1C:   //???         LED1_0; LED2_0; LED3_0; LED4_0;         break;              case         0x14:   //OSD?         LED1_1; LED2_1; LED3_0; LED4_0;         break;               case         0x0E:   //RECALL?         LED1_0; LED2_0; LED3_1; LED4_1;         break;               case         0x19:   //SLEEP?         LED1_1; LED2_1; LED3_1; LED4_0;         break;               case         0x0A:   //A/C?         LED1_0; LED2_1; LED3_1; LED4_1;         break;               case         0x0F:   //TV/AV?         LED1_1; LED2_1; LED3_1; LED4_1;         break;               case         0x13:   //PP?         LED1_1; LED2_0; LED3_1; LED4_0;         break;               case         0x0C:   //GAME?         LED1_0; LED2_1; LED3_1; LED4_1;         break;               case         0x1E:   //V-?         LED1_1; LED2_1; LED3_1; LED4_0;         break;               case         0x1F:   //V+?         LED1_0; LED2_0; LED3_1; LED4_0;         break;                case         0x1B:   //P+?         LED1_0; LED2_0; LED3_0; LED4_1;         break;                case         0x1A:   //P-?         LED1_1; LED2_0; LED3_0; LED4_0;         break;                case         0x10:   //MENU?         LED1_0; LED2_1; LED3_0; LED4_0;         break;                  default  :     break;           }       // Beep_lookCmd();          //??????  EXTI_ClearITPendingBit(EXTI_Line2);  //??EXTI2???????}  

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