关于stm8s105c6 tim1外部时钟源模式2 对外部脉冲计数问题

08动静提问时间：2013-7-3 16:48 /

#include "stm8s.h"
#include "stm8s_tim1.h"
#include "stm8s_gpio.h"
#include "stm8s_flash.h"

void TIM1_Init(void)
{
  u8  status;
  TIM1_DeInit();
      GPIO_Init(GPIOB, GPIO_PIN_ALL  , GPIO_MODE_IN_FL_NO_IT );
  FLASH_Unlock(FLASH_MEMTYPE_DATA);
  FLASH_ProgramOptionByte(0x4803,0x20);
  status = FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  if (status == FLASH_STATUS_SUCCESSFUL_OPERATION)
  {
   }
  FLASH_Lock(FLASH_MEMTYPE_DATA);
  TIM1_ETRClockMode2Config(TIM1_EXTTRGPSC_DIV2, TIM1_EXTTRGPOLARITY_INVERTED, 0x00);
  TIM1_Cmd(ENABLE);
}
u8 COUN1=0;
int main(void)
{
while(1)
{
COUN1=TIM1->CNTRH;
}
}
调用库函数，这个程序能实现这个功能吗？