UCOSIII--407开发板，发送中断只发送一包数据后就再也不产生中断了

yyg222 · 发表于 2016-8-29 13:31:52

void Uasrt2_Timer_Init(void)
{
  Usart2_Timer.Enable=TIMER_DELAY_OFF;
  Usart2_Timer.Delay_Store =12;
  Usart2_Timer.Delay=Usart2_Timer.Delay_Store;
}
//========================================
void Usart2_Timer_Inter(void)
{
OS_ERR err;
if(Usart2_Timer.Enable==TIMER_DELAY_ON)
  {
Usart2_Timer.Delay--;
if(Usart2_Timer.Delay==0)
{
   Usart2_Timer.Enable=TIMER_DELAY_OFF;
   Usart2_Timer.Delay=Usart2_Timer.Delay_Store;
   OSSemPost(&USART2_RX_PACKGE_SEM,OS_OPT_POST_1,&err);//·¢ËÍÐÅºÅÁ¿
   }
}
}
//=========================================
//          ´®¿Ú³õÊ¼»¯³ÌÐò
//=========================================
//  ¸ÃÍ¨Ñ¶¿ÚÎªRS485Í¨Ñ¶¿Ú
//  Éæ¼°£ºTX /RX /DIR Èý¸ùÍ¨Ñ¶¿ØÖÆÏß
//-----------------------------------------
void USART2_Init(u32 bound)
{
  GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

Uasrt2_Timer_Init();    //ÊÕ°ü¶¨Ê±Æ÷³õÊ¼»¯
  Rst_Usart2_TX_Buff(); //Çå¿Õ·¢ËÍ»º³åÇø
  Rst_Usart2_RX_Buff(); //Çå¿Õ½ÓÊÕ»º³åÇø

RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE); //Ê¹ÄÜGPIOAÊ±ÖÓ
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE); //Ê¹ÄÜUSART2Ê±ÖÓ

  //´®¿Ú2Òý½Å¸´ÓÃÓ³Éä
GPIO_PinAFConfig(GPIOA,GPIO_PinSource2,GPIO_AF_USART2); //GPIOA2¸´ÓÃÎªUSART2
GPIO_PinAFConfig(GPIOA,GPIO_PinSource3,GPIO_AF_USART2); //GPIOA3¸´ÓÃÎªUSART2

//USART2
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;  //GPIOA2ÓëGPIOA3
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;          //¸´ÓÃ¹¦ÄÜ
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;    //ËÙ¶È100MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;       //ÍÆÍì¸´ÓÃÊä³ö
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;          //ÉÏÀ
GPIO_Init(GPIOA,&GPIO_InitStructure);                //³õÊ¼»&macr

A2£&not

A3

//PG8ÍÆÍìÊä³ö£¬485Ä£Ê½·½Ïò¿ØÖÆ
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOG,ENABLE); //Ê¹ÄÜGPIOGÊ±ÖÓ
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;             //GPIOG8
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;          //Êä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;    //ËÙ¶È100MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;       //ÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;          //ÉÏÀ
GPIO_Init(GPIOG,&GPIO_InitStructure);                //³õÊ¼»&macr

G8

  //USART2 ³õÊ¼»¯ÉèÖÃ
USART_InitStructure.USART_BaudRate = bound;                   //²¨ÌØÂÊÉèÖÃ
USART_InitStructure.USART_WordLength = USART_WordLength_8b;    //×Ö³¤Îª8Î»Êý¾Ý¸ñÊ½
USART_InitStructure.USART_StopBits = USART_StopBits_1;       //Ò»¸öÍ£Ö¹Î»
USART_InitStructure.USART_Parity = USART_Parity_No;          //ÎÞÆæÅ¼Ð£ÑéÎ»
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎÞÓ²¼þÊý¾ÝÁ÷¿ØÖÆ
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //ÊÕ·¢Ä£Ê½
  USART_Init(USART2, &USART_InitStructure);                      //³õÊ¼»¯´®¿Ú2

  USART_Cmd(USART2, ENABLE);                                     //Ê¹ÄÜ´®¿Ú 2

  NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;             //´®¿Ú1ÖÐ¶ÏÍ¨µÀ
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3;       //ÇÀÕ¼ÓÅÏÈ¼¶3
NVIC_InitStructure.NVIC_IRQChannelSubPriority =2;             //×ÓÓÅÏÈ¼¶2
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;             //IRQÍ¨µÀÊ¹ÄÜ
NVIC_Init(&NVIC_InitStructure);                               //¸ù¾ÝÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯VIC¼Ä´æÆ÷¡¢

USART_ClearITPendingBit(USART2,USART_IT_TC);                   //Çå³ý·¢ËÍÖÐ¶Ï±êÖ¾
  USART_ClearITPendingBit(USART2,USART_IT_RXNE);                //Çå³ý½ÓÊÕÖÐ¶Ï±êÖ¾
  Usart2TxdIntDis();                                           //½ûÖ¹´®¿Ú2·¢ËÍÊý¾ÝÍê³ÉÖÐ¶Ï
  Usart2RxdIntDis();                                           //½ûÖ¹´®¿Ú2½ÓÊÕÊý¾ÝÍê³ÉÖÐ¶Ï
USART2_DIR_RX();
}
//============================================
void  Rst_Usart2_TX_Buff(void) //Çå¿Õ·¢ËÍ»º³åÇø
{
Usart2_Data.Tx.Rd=0;
Usart2_Data.Tx.Wr=0;
}
void  Rst_Usart2_RX_Buff(void) //Çå¿Õ½ÓÊÕ»º³åÇø
{
Usart2_Data.Rx.Rd=0;
Usart2_Data.Rx.Wr=0;
}
//***************************************************
//          ·¢ËÍÊý¾Ý×¼±¸¼°Æô¶¯
//***************************************************
void  USART2_Send_Start(unsigned char *sbuff,unsigned short int sLength)
{
  unsigned short int i;
  if(sLength==0) return;
  for(i=0;i<sLength;i++)
  {
Usart2_Data.Tx.Buff[Usart2_Data.Tx.Wr]=*(sbuff+i);
Usart2_Data.Tx.Wr++;
if(Usart2_Data.Tx.Wr==UART_BUFF_LENGTH) Usart2_Data.Tx.Wr=0;
if(Usart2_Data.Tx.Wr==Usart2_Data.Tx.Rd)
{
Usart2_Data.Tx.Rd++;
if(Usart2_Data.Tx.Rd==UART_BUFF_LENGTH) Usart2_Data.Tx.Rd=0;
}
  }
  USART2_DIR_TX();
  Usart2TxdIntEn();
}
//--------------------------------------
void  Usart2_Send_Data(void)       //´®¿Ú·¢ËÍÊý¾Ý
{
  if(Usart2_Data.Tx.Rd!=Usart2_Data.Tx.Wr)
{
USART_SendData(USART2,Usart2_Data.Tx.Buff[Usart2_Data.Tx.Rd]);
Usart2_Data.Tx.Rd++;
if(Usart2_Data.Tx.Rd>=UART_BUFF_LENGTH)  Usart2_Data.Tx.Rd=0;
}
else
{
  Usart2TxdIntDis();
USART2_DIR_RX();
}
//OSSemPost(&USART2_TX_END_SEM,OS_OPT_POST_1,&err);//·¢ËÍÐÅºÅÁ¿
}
//*******************************************************
void  Usart2_Receive_Data(void)    //´®¿Ú½ÓÊÕÊý¾Ý
{
Usart2_Data.Rx.Buff[Usart2_Data.Rx.Wr]=USART_ReceiveData(USART2);
Usart2_Data.Rx.Wr++;
if(Usart2_Data.Rx.Wr==UART_BUFF_LENGTH) Usart2_Data.Rx.Wr=0;

if(Usart2_Data.Rx.Wr==Usart2_Data.Rx.Rd)  Usart2_Data.Rx.Rd++;
if(Usart2_Data.Rx.Rd==UART_BUFF_LENGTH) Usart2_Data.Rx.Rd=0;
}
//------------------------------------------------------
unsigned short int Usart2_Take_Data(unsigned char *sbuff)
{
  unsigned short int sLength=0;
  if(Usart2_Data.Rx.Rd==Usart2_Data.Rx.Wr) return sLength;
for(;Usart2_Data.Rx.Rd!=Usart2_Data.Rx.Wr;)
  {
*(sbuff+sLength)=Usart2_Data.Rx.Buff[Usart2_Data.Rx.Rd];
Usart2_Data.Rx.Rd++;
   if(Usart2_Data.Rx.Rd==UART_BUFF_LENGTH) Usart2_Data.Rx.Rd=0;
sLength++;
}
  return sLength;
}
//*********************************************
//             ´®¿ÚÖÐ¶Ï·þÎñ³ÌÐò
//*********************************************
void USART2_IRQHandler(void)  //´®¿Ú2ÖÐ¶Ï·þÎñ³ÌÐò
{
#if SYSTEM_SUPPORT_OS    //Ê¹ÓÃUCOS²Ù×÷ÏµÍ³
OSIntEnter();
  #endif
  //-----------------------------------
  if(USART_GetITStatus(USART2,USART_IT_TC)==SET)    // ·¢ËÍÊý¾ÝÖÐ¶Ï
{
Usart2_Send_Data();                               //´®¿Ú·¢ËÍÊý¾Ý
USART_ClearITPendingBit(USART2,USART_IT_TC);    //Çå³ýÖÐ¶Ï´ý´¦ÀíÎ»
}
  if(USART_GetITStatus(USART2,USART_IT_RXNE) != RESET) //½ÓÊÕÊý¾ÝÖÐ¶Ï
{
Usart2_Receive_Data();                            //´®¿Ú½ÓÊÕÊý¾Ý
   USART_ClearITPendingBit(USART2,USART_IT_RXNE);    //Çå³ýÖÐ¶Ï´ý´¦ÀíÎ»
Usart2_Timer_Enable();                            //Æô¶¯×îºóÒ»¸ö×Ö½ÚÅÐ¶Ï
}
//-----------------------------------
#if SYSTEM_SUPPORT_OS
OSIntExit();             //ÍË³öÖÐ¶Ï
  #endif
}
//====================================================

//*****************************************
//          ´®¿Ú2Í¨Ñ¶½âÎö´¦Àí
//*****************************************
unsigned char  Temp_Buff[1000];
void task2_task(void *p_arg)
{
unsigned short int sLength;
OS_ERR err;
p_arg = p_arg;
Usart2RxdIntEn();
USART2_DIR_RX();
while(1)
{
  OSSemPend(&USART2_RX_PACKGE_SEM,0,OS_OPT_PEND_BLOCKING,0,&err); //ÇëÇóÐÅºÅÁ¿
  sLength= Usart2_Take_Data(&Temp_Buff[0]);
  if(sLength!=0) USART2_Send_Start(&Temp_Buff[0],sLength);
}
}
//******************************************