stm8s105UART2通信不能进入中断，请各位大侠帮忙！

只看该作者 · 2014-6-8 11:08

本帖最后由 wuwenf 于 2014-6-8 12:24 编辑

#include "STM8S105C_S.h"       /* Registers and memory mapping file. */

unsigned char RxBuffer = 2;
unsigned char ch;
unsigned char ch1;

void UART2_Init(void);
void UART2_Send(unsigned char TxData);

void main(void)
{
unsigned int i;
unsigned char counter;

            _asm("sim");  //关全局中断
/*High speed internal clock prescaler: 1*/
CLK_CKDIVR = 0x00;
            UART2_Init();
_asm("rim");//开全局中断

while(1)
{
   for (i=0;i<1000;i++);
                     UART2_Send(RxBuffer);
}
}

void UART2_Init(void)
{
            UART2_CR2 = 0;          // 禁止UART发送和接收
            UART2_CR1 = 0;          //b5 = 0,允许UART，禁止奇偶校验
                              //一个起始位，8个数据位
            UART2_CR3 = 0;          // 1个停止位
            UART2_BRR2 = 0;
            UART2_BRR1 = 0x0d; //实际的波特率分频系数为00D0 对应的波特率为2000000/208=960
            UART2_CR2 = 0x2C;       //b3 = 1,允许发送 b2 = 1,允许接收
}
////
@far @interrupt void UART2_Recv_Inter(void)
{
            ch = UART2_DR; // 读入接收到的字符

            UART2_SR &= ~0x20;
            return;
}
void UART2_Send(unsigned char TxData)
{
  while((UART2_SR & 0x80) == 0x00);  // 若发送寄存器不空，则等待
  UART2_DR = TxData;                   // 将要发送的字符送到数据寄存器
}

////////////中断
extern @far @interrupt void UART2_Recv_Inter(void);

struct interrupt_vector const _vectab[] = {
      {0x82, (interrupt_handler_t)_stext}, /*RESET reset */
      {0x82, NonHandledInterrupt}, /* TRAP trap  */
      {0x82, NonHandledInterrupt}, /* TLI irq0  */
      {0x82, NonHandledInterrupt}, /* AWU irq1  */
      {0x82, NonHandledInterrupt}, /* CLK irq2  */
      {0x82, NonHandledInterrupt}, /* EXTI0_A irq3  */
      {0x82, NonHandledInterrupt}, /* EXTI1_B irq4  */
      {0x82, NonHandledInterrupt}, /* EXTI2_C irq5  */
      {0x82, NonHandledInterrupt}, /* EXTI3_D irq6  */
      {0x82, NonHandledInterrupt}, /* EXTI4_E irq7  */
      {0x82, NonHandledInterrupt}, /* CAN_RX irq8  */
      {0x82, NonHandledInterrupt}, /* CAN_TX irq9  */
      {0x82, NonHandledInterrupt}, /* SPI_RXTX irq10 */
      {0x82, NonHandledInterrupt}, /* TIM1 irq11 TIM1_irq11*/
      {0x82, NonHandledInterrupt}, /* TIM1_CCP irq12 */
      {0x82, NonHandledInterrupt}, /* TIM2 irq13 */
      {0x82, NonHandledInterrupt}, /* TIM2_CCP irq14 */
      {0x82, NonHandledInterrupt}, /* TIM3  irq15 */
      {0x82, NonHandledInterrupt}, /* TIM3_CCP irq16 */
      {0x82, NonHandledInterrupt}, /* UART1_TX irq17 */
      {0x82, NonHandledInterrupt}, /* UART1_RX irq18 */
      {0x82, NonHandledInterrupt}, /* I2C_RXTX irq19 */
      {0x82, NonHandledInterrupt}, /* UART2_TX irq20 */
      {0x82, UART2_Recv_Inter}, /* UART2_RX irq21 */
      {0x82, NonHandledInterrupt}, /* ADC1  irq22 */
      {0x82, NonHandledInterrupt}, /* TIM4  irq23 */
      {0x82, NonHandledInterrupt}, /* FLASH  irq24 */
      {0x82, NonHandledInterrupt}, /* irq25 */
      {0x82, NonHandledInterrupt}, /* irq26 */
      {0x82, NonHandledInterrupt}, /* irq27 */
      {0x82, NonHandledInterrupt}, /* irq28 */
      {0x82, NonHandledInterrupt}, /* irq29 */
};