標(biāo)題: STM32音樂(lè)盒生日快樂(lè)播放源碼 [打印本頁(yè)]
作者: 45470401    時(shí)間: 2017-11-19 16:55
標(biāo)題: STM32音樂(lè)盒生日快樂(lè)播放源碼
stm32電子工藝實(shí)習(xí)作品

單片機(jī)源程序如下:
  1. /******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
  2. * File Name          : main.c
  3. * Author             : MCD Application Team
  4. * Version            : V1.0
  5. * Date               : 10/08/2007
  6. * Description        : Main program body
  7. ********************************************************************************
  8. * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  9. * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
  10. * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
  11. * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
  12. * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
  13. * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  14. *******************************************************************************/

  16. /* Includes ------------------------------------------------------------------*/
  17. #include "stm32f10x_lib.h"
  18. #include "math.h"
  19. #include "stdio.h"

  21. int fputc(int ch,FILE *f);

  23. /* Private typedef -----------------------------------------------------------*/
  24. /* Private define ------------------------------------------------------------*/
  25. #define ADC1_DR_Address    ((u32)0x4001244C)

  27. //ADC1 4001 2400H
  28. //ADC_DR偏移地址 4CH

  30. volatile u16 ADC_Ch0_Res, ADC_Ch1_Res, ADC_Ch2_Res, ADC_Ch3_Res;
  31. volatile u16 ADC_RegularConvertedValueTab[1];
  32. u32 ADC_Calibration_DR;
  33. u32 shownum=0;




  38. /* Private macro -------------------------------------------------------------*/
  39. /* Private variables ---------------------------------------------------------*/

  41. ADC_InitTypeDef ADC_InitStructure;

  43. DMA_InitTypeDef DMA_InitStructure;

  45. USART_InitTypeDef USART_InitStructure;

  47. USART_ClockInitTypeDef  USART_ClockInitStructure;

  49. TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

  51. TIM_OCInitTypeDef  TIM_OCInitStructure;

  53. ErrorStatus HSEStartUpStatus;



  57. /* Private function prototypes -----------------------------------------------*/

  59. void USART_Configuration(void);
  60. void DMA_Configuration(void);
  61. void ADC_Configuration(void);
  62. void RCC_Configuration(void);
  63. void GPIO_Configuration(void);
  64. void NVIC_Configuration(void);
  65. void TIM1_Configuration(void);
  66. void TIM2_Configuration(void);
  67. void Delay(vu32 nCount);

  69. /* Private functions ---------------------------------------------------------*/

  71. /*******************************************************************************
  72. * Function Name  : main
  73. * Description    : Main program
  74. * Input          : None
  75. * Output         : None
  76. * Return         : None
  77. *******************************************************************************/
  78. int main(void)
  79. {
  80. //        u16 i=0;
  81. //        u32 sum=0;
  82.   #ifdef DEBUG
  83.     debug();
  84.   #endif

  86.   /* System Clocks Configuration */
  87.   RCC_Configuration();

  89.   /* NVIC configuration */
  90.   NVIC_Configuration();

  92.   /* Configure the GPIO ports */
  93.   GPIO_Configuration();

  95.   /* USART1 configuration ------------------------------------------------------*/
  96.   USART_Configuration();

  98.   /* DMA Channel1 Configuration ----------------------------------------------*/
  99.    DMA_Configuration();
  100.   
  101.   
  102.   /* ADC1 configuration ------------------------------------------------------*/
  103.   ADC_Configuration();

  105.   TIM1_Configuration();
  106.   TIM2_Configuration();




  111.   
  112.   while(1)
  113.   {                        
  114.    
  115. }

  117.   
  118. }

  120. void TIM1_Configuration(void)
  121. {
  122. /* ---------------------------------------------------------------
  123.   TIM2 Configuration: Output Compare Inactive Mode:
  124.   TIM2CLK = 36 MHz, Prescaler = 35999, TIM2 counter clock = 1 KHz
  125. --------------------------------------------------------------- */
  126.   /* Time base configuration */
  127.   TIM_TimeBaseStructure.TIM_Period = 300-1;           //定時(shí)周期
  128.   // T = (TIM_Period+1)*(TIM_Prescaler+1)/TIMxCLK
  129.   //   = (499+1)*(35999+1)/36MHz = 0.5s      
  130.   TIM_TimeBaseStructure.TIM_Prescaler = 36000-1;     //預(yù)分頻因子     
  131.   TIM_TimeBaseStructure.TIM_ClockDivision = 0;     //定時(shí)器分頻因子
  132.   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //定時(shí)器計(jì)數(shù)模式
  133.   TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
  134.   
  135.   TIM_ARRPreloadConfig(TIM1, ENABLE);//自動(dòng)裝載寄存器使能

  137.   /* TIM IT enable */
  138.   TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE);

  140.   /* TIM2 enable counter */
  141.   TIM_Cmd(TIM1, ENABLE);  //計(jì)數(shù)器控制寄存器TIMx->CR1中的計(jì)數(shù)器使能位（CEN）  

  143. }

  145. void TIM2_Configuration(void)
  146. {
  147. /* ---------------------------------------------------------------
  148.   TIM2 Configuration: Output Compare Inactive Mode:
  149.   TIM2CLK = 36 MHz, Prescaler = 35999, TIM2 counter clock = 1 KHz
  150. --------------------------------------------------------------- */
  151.   /* Time base configuration */
  152.   TIM_TimeBaseStructure.TIM_Period = 2;           //定時(shí)周期
  153.   // T = (TIM_Period+1)*(TIM_Prescaler+1)/TIMxCLK
  154.   //   = (499+1)*(35999+1)/36MHz = 0.5s      
  155.   TIM_TimeBaseStructure.TIM_Prescaler = 36000-1;     //預(yù)分頻因子     
  156.   TIM_TimeBaseStructure.TIM_ClockDivision = 0;     //定時(shí)器分頻因子
  157.   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //定時(shí)器計(jì)數(shù)模式
  158.   TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
  159.   
  160.   TIM_ARRPreloadConfig(TIM2, ENABLE);//自動(dòng)裝載寄存器使能

  162.   /* TIM IT enable */
  163.   TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);

  165.   /* TIM2 enable counter */
  166.   TIM_Cmd(TIM2, ENABLE);  //計(jì)數(shù)器控制寄存器TIMx->CR1中的計(jì)數(shù)器使能位（CEN）  

  168. }


  171. void USART_Configuration(void)
  172. {
  173.   /* USART1 configured as follow:
  174.         - BaudRate = 38400 baud
  175.         - Word Length = 8 Bits
  176.         - One Stop Bit
  177.         - No parity
  178.         - Hardware flow control disabled (RTS and CTS signals)
  179.         - Receive and transmit enabled
  180.         - USART Clock disabled
  181.         - USART CPOL: Clock is active low
  182.         - USART CPHA: Data is captured on the second edge
  183.         - USART LastBit: The clock pulse of the last data bit is not output to
  184.                          the SCLK pin
  185.   */
  186.   USART_InitStructure.USART_BaudRate = 38400;//設(shè)置波特率為38400
  187.   USART_InitStructure.USART_WordLength = USART_WordLength_8b;// 8位傳輸
  188.   USART_InitStructure.USART_StopBits = USART_StopBits_1; //1個(gè)停止位
  189.   USART_InitStructure.USART_Parity = USART_Parity_No;    //無(wú)校驗(yàn)位
  190.   USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
  191.   USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
  192.   USART_Init(USART1, &USART_InitStructure);
  193.   // 禁止硬件流控制，禁止RTS和CTS信號(hào)
  194.   // 允許接收、發(fā)送
  195.   /*
  196.   USART_InitStructure.USART_Clock = USART_Clock_Disable;//串口時(shí)鐘禁止
  197.   USART_InitStructure.USART_CPOL = USART_CPOL_Low;
  198.   USART_InitStructure.USART_CPHA = USART_CPHA_1Edge;
  199.   USART_InitStructure.USART_LastBit = USART_LastBit_Disable;  */
  200.   
  201.     /* Configure the USART1  配置串口的波特率，校驗(yàn)位，停止位和時(shí)鐘等*/  


  204.     USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;
  205.     USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
  206.     USART_ClockInitStructure.USART_CPHA = USART_CPHA_1Edge;
  207.     USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
  208.     USART_ClockInit(USART1 , &USART_ClockInitStructure);

  210.   /* Enable USART1  使能串口1*/
  211.   USART_Cmd(USART1, ENABLE);
  212.   
  213. }


  216. void DMA_Configuration(void)
  217. {
  218.   DMA_DeInit(DMA1_Channel1);//復(fù)位開(kāi)啟DMA1的第一通道
  219.   //DMA對(duì)應(yīng)的外設(shè)基地址
  220.   DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
  221.   
  222.   //序列1轉(zhuǎn)換結(jié)果放在ADC_RegularConvertedValueTab[0],序列2……
  223.   DMA_InitStructure.DMA_MemoryBaseAddr = (u32)ADC_RegularConvertedValueTab;  
  224.   //DMA的轉(zhuǎn)換模式：SRC模式，從外設(shè)向內(nèi)存中傳送數(shù)據(jù)
  225.   DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
  226.   DMA_InitStructure.DMA_BufferSize = 1;
  227.   //BufferSize = 4，ADC轉(zhuǎn)換序列有4個(gè)通道
  228.   
  229.   //接收一次數(shù)據(jù)后，設(shè)備地址是否后移
  230.   DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
  231.   //接收一次數(shù)據(jù)后，目標(biāo)內(nèi)存地址自動(dòng)后移，用來(lái)采集多個(gè)數(shù)據(jù)
  232.   DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;

  234.   //轉(zhuǎn)換結(jié)果的數(shù)據(jù)大小  
  235.   DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
  236.   DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
  237.   
  238. //轉(zhuǎn)換模式：常用循環(huán)緩存模式。Buffer寫(xiě)滿后，自動(dòng)回到初始地址開(kāi)始傳輸
  239.   //另外一種Normal模式：不循環(huán)，僅一次DMA
  240.   DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
  241.   DMA_InitStructure.DMA_Priority = DMA_Priority_High;//DMA優(yōu)先級(jí)，高
  242.   DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;//內(nèi)存到內(nèi)存模式禁止
  243.   DMA_Init(DMA1_Channel1, &DMA_InitStructure);

  245.   /* Enable DMA channel1 */
  246.   DMA_Cmd(DMA1_Channel1, ENABLE);
  247. }

  249. void ADC_Configuration(void)
  250. {
  251.   /* ADC1 configuration ------------------------------------------------------*/
  252.   ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;//每個(gè)ADC獨(dú)立工作
  253.   //ADC掃描所有規(guī)則轉(zhuǎn)換通道ADC_SQRx和注入轉(zhuǎn)換通道ADC_JSQR
  254.   ADC_InitStructure.ADC_ScanConvMode = ENABLE;
  255.   ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;//連續(xù)轉(zhuǎn)換模式開(kāi)啟
  256.   
  257.   /*關(guān)閉ADC外部觸發(fā)，即禁止由外部觸發(fā)模數(shù)轉(zhuǎn)換*/
  258.   ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
  259.   ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;//轉(zhuǎn)換數(shù)據(jù)右對(duì)齊
  260.   ADC_InitStructure.ADC_NbrOfChannel = 1;   //開(kāi)啟4個(gè)通道
  261.   ADC_Init(ADC1, &ADC_InitStructure);      //調(diào)用固件庫(kù)函數(shù)完成初始化

  263.   /* ADC1 regular channel configuration */ //采樣周期為239.5個(gè)周期
  264.   ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_239Cycles5);

  266.   //轉(zhuǎn)換周期不能太短，否則CPU基本一直處于ADC中斷狀態(tài)

  268.   /* Enable ADC1 DMA */
  269.   ADC_DMACmd(ADC1, ENABLE);/*  使能ADC1  DMA*/

  271.   /* Enable ADC1 ECO*/ //ADC轉(zhuǎn)換完成中斷使能
  272. // ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);
  273.   
  274.   /* Enable ADC1 */
  275.   ADC_Cmd(ADC1, ENABLE);

  277.     /* Enable ADC1 reset calibaration register */
  278.   ADC_ResetCalibration(ADC1);// ADC1 復(fù)位校準(zhǔn)
  279.   
  280.   /* Check the end of ADC1 reset calibration register */
  281.   while(ADC_GetResetCalibrationStatus(ADC1)); //等待校準(zhǔn)寄存器初始化

  283.   /* Start ADC1 calibaration */
  284.   ADC_StartCalibration(ADC1);//開(kāi)始校準(zhǔn)
  285.   
  286.   /* Check the end of ADC1 calibration */
  287.   while(ADC_GetCalibrationStatus(ADC1));//等到校準(zhǔn)完成

  289.   ADC_Calibration_DR = ADC1->DR;//保存校準(zhǔn)碼

  291.   /* Start ADC1 Software Conversion */
  292.   ADC_SoftwareStartConvCmd(ADC1, ENABLE);//軟件啟動(dòng)ADC1進(jìn)行連續(xù)轉(zhuǎn)換

  294.   //ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);
  295. }


  298. /*******************************************************************************
  299. * Function Name  : RCC_Configuration
  300. * Description    : Configures the different system clocks.
  301. * Input          : None
  302. * Output         : None
  303. * Return         : None
  304. *******************************************************************************/
  305. void RCC_Configuration(void)
  306. {                                                                                                                               
  307.   /* RCC system reset(for debug purpose) */
  308.   RCC_DeInit();

  310.   /* Enable HSE */

  312. // RCC_HSICmd(ENABLE);
  313.   RCC_HSEConfig(RCC_HSE_ON);
  314. // RCC_LSEConfig(RCC_LSE_OFF);

  316.   while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
  317.   /* Wait till HSE is ready */
  318.   HSEStartUpStatus = RCC_WaitForHSEStartUp();

  320.   if(HSEStartUpStatus == SUCCESS)
  321.   {
  322.     /* Enable Prefetch Buffer */
  323.     FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

  325.     /* Flash 2 wait state */
  326.     FLASH_SetLatency(FLASH_Latency_2);

  328.     /* HCLK = SYSCLK */
  329.     RCC_HCLKConfig(RCC_SYSCLK_Div1);

  331.     /* PCLK2 = HCLK */
  332.     RCC_PCLK2Config(RCC_HCLK_Div1);

  334.     /* PCLK1 = HCLK/2 */
  335.     RCC_PCLK1Config(RCC_HCLK_Div2);

  337.     /* PLLCLK = 8MHz * 9 = 72 MHz */
  338.     RCC_PLLConfig(RCC_PLLSource_HSI_Div2, RCC_PLLMul_9);

  340.     /* Enable PLL */
  341.     RCC_PLLCmd(ENABLE);

  343.     /* Wait till PLL is ready */
  344.     while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
  345.     {
  346.     }

  348.     /* Select PLL as system clock source */
  349.     RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

  351.     /* Wait till PLL is used as system clock source */
  352.     while(RCC_GetSYSCLKSource() != 0x08)
  353.     {
  354.     }
  355. }

  357.   /* Enable DMA clock */
  358.   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);


  361.   /* Enable GPIOA  GPIOB USART1 GPIOC and ADC1 clocks */
  362.   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1
  363.                          | RCC_APB2Periph_GPIOC | RCC_APB2Periph_ADC1
  364.                          | RCC_APB2Periph_GPIOB| RCC_APB2Periph_GPIOD
  365.                                                  | RCC_APB2Periph_TIM1, ENABLE);
  366.         RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
  367.   
  368.   RCC_ADCCLKConfig(RCC_PCLK2_Div6);
  369. }

  371. /*******************************************************************************
  372. * Function Name  : GPIO_Configuration
  373. * Description    : Configures the different GPIO ports.
  374. * Input          : None
  375. * Output         : None
  376. * Return         : None
  377. *******************************************************************************/
  378. void GPIO_Configuration(void)
  379. {
  380.   GPIO_InitTypeDef GPIO_InitStructure;

  382.   /* Configure USART1 Tx (PA.09) as alternate function push-pull */
  383.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  384.   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  385.   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  386.   GPIO_Init(GPIOA, &GPIO_InitStructure);

  388.   /* Configure USART1 Rx (PA.10) as input floating */
  389.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  390.   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  391.   GPIO_Init(GPIOA, &GPIO_InitStructure);


  394.   /* Configure PA4 PA5 PA6 and PA7
  395.   (ADC Channel4 Channel5 Channel6 and Channel7) as analog input */
  396.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  397.   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
  398.   GPIO_Init(GPIOA, &GPIO_InitStructure);
  399.   

  401.   
  402.   /* GPIOA Configuration: Pin8 in Output */
  403.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  404.   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  405.   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  406.   GPIO_Init(GPIOB, &GPIO_InitStructure);  
  407.   
  408.    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
  409.   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  410.   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  411.   GPIO_Init(GPIOC, &GPIO_InitStructure);         
  412.   


  415. }

  417. /*******************************************************************************
  418. * Function Name  : NVIC_Configuration
  419. * Description    : Configures the nested vectored interrupt controller.
  420. * Input          : None
  421. * Output         : None
  422. * Return         : None
  423. *******************************************************************************/
  424. void NVIC_Configuration(void)
  425. {
  426.   NVIC_InitTypeDef NVIC_InitStructure;

  428. #ifdef  VECT_TAB_RAM
  429.   /* Set the Vector Table base location at 0x20000000 */
  430.   NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
  431. #else  /* VECT_TAB_FLASH  */
  432.   /* Set the Vector Table base location at 0x08000000 */
  433.   NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
  434. #endif

  436.     // Enable ADC IRQChannel
  437.   NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_IRQChannel;
  438.   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  439.   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  440.   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  441.   NVIC_Init(&NVIC_InitStructure);

  443.   NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQChannel;
  444.   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  445. ……………………

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作者: 真真真豬    時(shí)間: 2018-10-31 16:11
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