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int main()
{
/*ÅäÖô®¿Ú1*/
GPIOA_SetBits(GPIO_Pin_9);
GPIOA_ModeCfg(GPIO_Pin_8, GPIO_ModeIN_PU); // RXD-ÅäÖÃÉÏÀÊäÈë
GPIOA_ModeCfg(GPIO_Pin_9, GPIO_ModeOut_PP_5mA);// TXD-ÅäÖÃÍÆÍìÊä³ö£¬×¢ÒâÏÈÈÃIO¿ÚÊä³ö¸ßµçƽ
UART1_DefInit();
/*ʹÄܽÓÊÕÖжÏ,½ÓÊÕ´íÎóÖжÏ*/
UART1_INTCfg( ENABLE, RB_IER_RECV_RDY|RB_IER_LINE_STAT );
// NVIC_SetPriority(TMR0_IRQn,18);//ÉèÖÃÖжÏÓÅÏȼ¶(Ò²¿ÉÒÔ²»ÉèÖÃ,ĬÈÏ14)
NVIC_EnableIRQ( UART1_IRQn );
while(1)
{
}
}
/*´®¿ÚÖжÏ*/
void UART1_IRQHandler(void)
{
char data;
switch( UART1_GetITFlag() )
{
case UART_II_LINE_STAT: // Ïß·״̬´íÎó
UART1_GetLinSTA();
break;
case UART_II_RECV_RDY: // Êý¾Ý´ïµ½ÉèÖô¥·¢µã
data = UART1_RecvByte();
UART1_SendByte(data);
break;
case UART_II_RECV_TOUT: // ½ÓÊÕ³¬Ê±£¬ÔÝʱһ֡Êý¾Ý½ÓÊÕÍê³É
data = UART1_RecvByte();
UART1_SendByte(data);
UART1_SendByte('b');//´òÓ¡Ò»¸ö×Ö·û,˵Ã÷½øÈëÁ˴˺¯Êý
break;
case UART_II_THR_EMPTY: // ·¢ËÍ»º´æÇø¿Õ£¬¿É¼ÌÐø·¢ËÍ
break;
case UART_II_MODEM_CHG: // Ö»Ö§³Ö´®¿Ú0
break;
default:
break;
}
}
char send_len = 0;
char send_buff[11]="987654321\n\r";
int main()
{
/*ÅäÖô®¿Ú1*/
GPIOA_SetBits(GPIO_Pin_9);
GPIOA_ModeCfg(GPIO_Pin_8, GPIO_ModeIN_PU); // RXD-ÅäÖÃÉÏÀÊäÈë
GPIOA_ModeCfg(GPIO_Pin_9, GPIO_ModeOut_PP_5mA);// TXD-ÅäÖÃÍÆÍìÊä³ö£¬×¢ÒâÏÈÈÃIO¿ÚÊä³ö¸ßµçƽ
UART1_DefInit();
/*ʹÄܽÓÊÕÖжÏ,½ÓÊÕ´íÎóÖжÏ*/
UART1_INTCfg( ENABLE, RB_IER_RECV_RDY|RB_IER_LINE_STAT );
// NVIC_SetPriority(TMR0_IRQn,18);//ÉèÖÃÖжÏÓÅÏȼ¶(Ò²¿ÉÒÔ²»ÉèÖÃ,ĬÈÏ14)
NVIC_EnableIRQ( UART1_IRQn );
while(1)
{
send_len = 11;
UART1_INTCfg( ENABLE,RB_IER_THR_EMPTY );//ʹÄÜÖжϷ¢ËÍ
DelayMs(1000);
}
}
/*´®¿ÚÖжÏ*/
void UART1_IRQHandler(void)
{
char data;
switch( UART1_GetITFlag() )
{
case UART_II_LINE_STAT: // Ïß·״̬´íÎó
UART1_GetLinSTA();
break;
case UART_II_RECV_RDY: // Êý¾Ý´ïµ½ÉèÖô¥·¢µã
data = UART1_RecvByte();
break;
case UART_II_RECV_TOUT: // ½ÓÊÕ³¬Ê±£¬ÔÝʱһ֡Êý¾Ý½ÓÊÕÍê³É
data = UART1_RecvByte();
break;
case UART_II_THR_EMPTY: // ·¢ËÍ»º´æÇø¿Õ£¬¿É¼ÌÐø·¢ËÍ
if(send_len>0)
{
send_len--;
UART1_SendByte(send_buff[send_len]);
}
else
{
UART1_INTCfg( DISABLE,RB_IER_THR_EMPTY );//¹Ø±ÕÖжϷ¢ËÍ
}
break;
case UART_II_MODEM_CHG: // Ö»Ö§³Ö´®¿Ú0
break;
default:
break;
}
}