STM32 控制GSM模块收发信息 F407 discovery

main.c

#include "stm32f4_discovery.h"
#include <stdio.h>
 
#define LED1_ON     GPIO_SetBits(GPIOD,GPIO_Pin_12)
#define LED1_OFF	GPIO_ResetBits(GPIOD,GPIO_Pin_12)

#define LED2_ON     GPIO_SetBits(GPIOD,GPIO_Pin_13)
#define LED2_OFF	GPIO_ResetBits(GPIOD,GPIO_Pin_13)

extern uint8_t NbrOfDataToTransfer;
extern uint8_t NbrOfDataToRead;
extern __IO uint8_t TxCounter; 
extern __IO uint16_t RxCounter; 


extern volatile unsigned char MsgAddEnd;
extern volatile unsigned char MsgAdd[5];
extern volatile unsigned char MsgContentEnd;
extern volatile unsigned char MsgContent[240];

void NVIC_Config(void);
void GPIO_Configuration(void);
void STM_EVAL_COMInit(void);
void USART_Configuration(int BaudRate);
void LED_Config(void);
void Delay(__IO uint32_t nCount);

void SendMSG2GF(void);
void MsgRemindInit(void);
void ReadMSG(void);
void JudgeFromMsg(void);
 
int main(void)
{
  /* Configure the system clocks */
  NVIC_Config();                /* NVIC Configuration */
 
//GPIO_Configuration();         /* Configure the GPIOs */
  STM_EVAL_COMInit();  
  
  USART_Configuration(115200);        /* Configure the USART1 's mode */
                                /* Enable the EVAL_COM1 Transmit interrupt: this interrupt is generated when the 
                                   EVAL_COM1 transmit data register is empty */  
  LED_Config();
  
  //SendMSG2GF();
  MsgRemindInit();
  
  USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
  
  while (1)
  {
      Delay(0xFFFF);     
      ReadMSG();
      JudgeFromMsg();
  }
}
void MsgRemindInit()
{
    int i;
    /*AT+CNMI=2,1    短信提示*/
    unsigned char CMD1[13] = {0x41 ,0x54 ,0x2B ,0x43 ,0x4E ,0x4D ,0x49 ,0x3D ,0x32 ,0x2C ,0x31 ,0x0D ,0x0A};
    /*AT+CMGF=1     英文方式发送*/
    unsigned char CMD2[11] = {0x41 ,0x54 ,0x2B ,0x43 ,0x4D ,0x47 ,0x46 ,0x3D ,0x31 ,0x0D ,0x0A};
    
    for(i = 0; i < 13; ++i)
    {
        USART_SendData(USART1, CMD1[i]);
        Delay(0xFFF);
    }
    Delay(0xFFFFFF);
    for(i = 0; i < 11; ++i)
    {
        USART_SendData(USART1, CMD2[i]);
        Delay(0xFFF);
    }
    Delay(0xFFFFFF);
}

void ReadMSG()
{
    int i;
    
    unsigned char CMD1[8] = {0x41 , 0x54 , 0x2B , 0x43 , 0x4D , 0x47 , 0x52 , 0x3D};
    
    unsigned char CMD2[5] = {0xff, 0xff, 0xff, 0xff, 0xff}; // 改回000
    
    unsigned char CMD3[2] = {0x0D, 0x0A};

    while(MsgAddEnd == 0) Delay(1);

    for(i = 0; i < 5; ++i)
    {
        CMD2[i] = MsgAdd[i];
        if(MsgAdd[i] == 0xff) break;
    }
    
    
    MsgAddEnd = 0;
    for(i = 0; i < 5; ++i) MsgAdd[i] = 0xff;
    
    /*tx*/
    
    for(i = 0; i < 8; ++i)
    {
        USART_SendData(USART1, CMD1[i]);
        Delay(0xFFF);
    }
    
    for(i = 0; i < 5; ++i)
    {
        if(CMD2[i] != 0xff)
        {
            if(CMD2[i] == 0x00) break;
            USART_SendData(USART1, CMD2[i]);
            Delay(0xFFF);
        }
        else break;
    }
    
    for(i = 0; i < 2; ++i)
    {
         USART_SendData(USART1, CMD3[i]);
         Delay(0xFFF);
    }
    LED1_ON;
    /*waiting for msg content*/
    while(MsgContentEnd == 0) Delay(1);
    Delay(0xff);
    LED1_OFF;
    MsgContentEnd = 0;
}

void JudgeFromMsg()
{
    int i = 0;
    if(MsgContent[0] == '1')
    {
        LED1_ON ;
        LED2_ON ;
    }
    if(MsgContent[0] == '0')
    {
        LED1_OFF;
        LED2_OFF; 
    }
    for(i = 0; i < 240; ++i) MsgContent[i] = 0xff;
}
void SendMSG2GF()
{
    int i;
    // Step1 : AT+CMGF=1
    unsigned char CMD1[11] = {0x41 ,0x54 ,0x2B ,0x43 ,0x4D ,0x47 ,0x46 ,0x3D ,0x31 ,0x0D ,0x0A};  
    // Step2 : AT+CMGS="18362970179"
    unsigned char CMD2[23] = {0x41 ,0x54 ,0x2B ,0x43 ,0x4D ,0x47 ,0x53 ,0x3D ,0x22 ,0x31 ,0x35 ,0x30 ,0x30 ,0x35 ,0x31 ,0x38 ,0x33 ,0x32 ,0x37 ,0x34 ,0x22 ,0x0D ,0x0A};
    // Step3 : STM32
    unsigned char content[5] = {0x53 ,0x54 ,0x4D ,0x33 ,0x32};
    // Step4 : 0x1A
    unsigned char CMD3 = 0x1A;
    
    for(i = 0; i < 11; ++i)
    {
        USART_SendData(USART1, CMD1[i]);
        Delay(0xFFF);
    }
    Delay(0xFFFFFF);
    for(i = 0; i < 23; ++i) 
    {
        USART_SendData(USART1, CMD2[i]);
        Delay(0xFFF);
    }
    Delay(0xFFFFFF);
    for(i = 0; i < 5; ++i)
    {
        USART_SendData(USART1, content[i]);
        Delay(0xFFF);
    }    
    Delay(0xFFFFFF);
    USART_SendData(USART1, CMD3);
}
void Delay(__IO uint32_t nCount)
{
  while(nCount--)
  {
  }
}


/*******************************************************************************
* Function Name  : GPIO_Configuration
* Description    : Configures the different GPIO ports.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Configure USART1 Tx (PA.09) as alternate function push-pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
    
  /* Configure USART1 Rx (PA.10) as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
}



/**
  * @brief  Configures COM port.
  * @param  COM: Specifies the COM port to be configured.
  *   This parameter can be one of following parameters:    
  *     @arg COM1
  *     @arg COM2  
  * @param  USART_InitStruct: pointer to a USART_InitTypeDef structure that
  *   contains the configuration information for the specified USART peripheral.
  * @retval None
  */
void STM_EVAL_COMInit(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Enable GPIO clock */
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
  /* Enable UART clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
 
  /* Connect PXx to USARTx_Tx*/
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1);
  /* Connect PXx to USARTx_Rx*/
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_USART1);

  /* Configure USART Tx as alternate function  */
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  /* Configure USART Rx as alternate function  */
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
}




/*******************************************************************************
* Function Name  : USART_Configuration
* Description    : Configures the USART1.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USART_Configuration(int BaudRate)
{
    USART_InitTypeDef USART_InitStructure;

    USART_InitStructure.USART_BaudRate = BaudRate;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No ;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART1, &USART_InitStructure); /* Configure USART1 basic and asynchronous paramters */
    USART_Cmd(USART1, ENABLE);   /* Enable USART1 */
}



void LED_Config(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;
	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD , ENABLE);
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 ;
  	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  	GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_UP;
  	GPIO_Init(GPIOD, &GPIO_InitStructure);
}


void NVIC_Config(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;

  /* Enable the USARTx Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}




#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d
", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif




/*******************************************************************************
* Function Name  : fputc
* Description    : Retargets the C library printf function to the USART.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int fputc(int ch, FILE *f)
{
  /* Place your implementation of fputc here */
  /* e.g. write a character to the USART */
  USART_SendData(USART1, (u8) ch);

  /* Loop until the end of transmission */
  while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)
  {
  }

  return ch;
}

中断函数 

#include "stm32f4xx_it.h"

#define LED1_ON     GPIO_SetBits(GPIOD,GPIO_Pin_12)
#define LED1_OFF	GPIO_ResetBits(GPIOD,GPIO_Pin_12)

#define LED2_ON     GPIO_SetBits(GPIOD,GPIO_Pin_13)
#define LED2_OFF	GPIO_ResetBits(GPIOD,GPIO_Pin_13)

#define USARTx_IRQHANDLER   USART1_IRQHandler

#define TXBUFFERSIZE   (countof(TxBuffer) - 1)
#define RXBUFFERSIZE   0x20

#define countof(a)   (sizeof(a) / sizeof(*(a)))


/* Private variables ---------------------------------------------------------*/
uint8_t TxBuffer[] = "

USART Hyperterminal Interrupts Example: USART-Hyperterminal
 communication using Interrupt

";
uint8_t RxBuffer[RXBUFFERSIZE];
uint8_t NbrOfDataToTransfer = TXBUFFERSIZE;
uint8_t NbrOfDataToRead = RXBUFFERSIZE;
__IO uint8_t TxCounter = 0; 
__IO uint8_t RxData; 
__IO uint16_t RxCounter = 0; 


volatile unsigned char MsgAddBegin = 0;
volatile unsigned char MsgAddEnd = 0;
volatile unsigned char MsgAddSvCur = 0;
volatile unsigned char MsgAdd[5];
volatile unsigned char MsgContentSvCur = 0;
volatile unsigned char MsgContentBegin = 0;
volatile unsigned char MsgContentEnd = 0;
volatile unsigned char MsgContent[240];

volatile unsigned char HeadCur = 0;
#define HeadCnt 3
volatile unsigned char Head[HeadCnt + 1] = {0x2B , 0x43 , 0x4D, 0xff};  // +CM
volatile unsigned char AddHeadCur = 0;
#define AddHeadCnt 9
volatile unsigned char AddHead[AddHeadCnt + 1] = {0x54 ,0x49 ,0x3A ,0x20 ,0x22 ,0x53 ,0x4D ,0x22 ,0x2C, 0xff}; //TI: "SM",
volatile unsigned char AddTailCur = 0;
#define AddTailCnt 2
volatile unsigned char AddTail[AddTailCnt] = {0x0D, 0x0A};
volatile unsigned char ContentHeadCur = 0;
#define ContentHeadCnt 2
volatile unsigned char ContentHead[ContentHeadCnt + 1] = {0x47 ,0x52 ,0xff}; //GR:  0x47 ,0x52 ,0x3A ,0x20, 0xff
volatile unsigned char QuotationMarkCnt = 0; //  8

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief   This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void)
{
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval None
  */
void HardFault_Handler(void)
{
  /* Go to infinite loop when Hard Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void)
{
  /* Go to infinite loop when Memory Manage exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void)
{
  /* Go to infinite loop when Bus Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void)
{
  /* Go to infinite loop when Usage Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_Handler(void)
{
}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void)
{
}

/**
  * @brief  This function handles PendSVC exception.
  * @param  None
  * @retval None
  */
void PendSV_Handler(void)
{
}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
void SysTick_Handler(void)
{
}

/******************************************************************************/
/*            STM32F4xx Peripherals Interrupt Handlers                        */
/******************************************************************************/

/**
  * @brief  This function handles USARTx global interrupt request.
  * @param  None
  * @retval None
  */
void USARTx_IRQHANDLER(void)
{
    if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
    {
        RxData = USART_ReceiveData(USART1);
        //USART_SendData(USART1, RxData);
        if(MsgAddBegin == 1)
        {
            if(RxData == 0x0D)
            {
                MsgAddEnd = 1;
                MsgAddBegin = 0;
                HeadCur = 0;
                AddHeadCur = 0;
                MsgAddSvCur = 0;
                return;
            }
            MsgAdd[MsgAddSvCur] = RxData;
            MsgAddSvCur++;
            return;
        }
        if(MsgContentBegin == 1)
        {
            if(RxData == 0x0D)
            {
                MsgContentEnd = 1;
                MsgContentBegin = 0;
                HeadCur = 0;
                ContentHeadCur = 0;
                MsgContentSvCur = 0;
                QuotationMarkCnt = 0;
                return;
            }
            MsgContent[MsgContentSvCur] = RxData;
            MsgContentSvCur++;
            return;            
        }
        
        if(RxData == Head[HeadCur]) HeadCur++;
        else
        {
            if(HeadCur == HeadCnt)
            {   
                if(RxData == AddHead[AddHeadCur]) AddHeadCur++;
                if(RxData == ContentHead[ContentHeadCur]) ContentHeadCur++; 
                
                if(ContentHeadCur == ContentHeadCnt)
                {                 
                    if(RxData == 0x22) QuotationMarkCnt++ ;
                    if(QuotationMarkCnt == 8)
                    { 
                        if(RxData == 0x0A)
                        {
                            MsgContentBegin = 1;
                            MsgContentSvCur = 0;
                        }
                    }
                    return;
                }               
                else if(AddHeadCur == AddHeadCnt)
                {
                    MsgAddBegin = 1;
                    MsgAddSvCur = 0;
                    return ;
                }
            }
            else HeadCur = 0;
        }
        
    }
}
/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f4xx.s).                                               */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/

/**
  * @}
  */ 


/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/