中断STM8S003F3P6和TIM2无法更改更新中断标志

STVD 4.3.10
宇宙V4.3.7
eBay el cheapo STM8S003F3P6（蓝色与B5上的LED）
大家好。我怀疑基本的中断编码有点问题。我的LED以可变速率闪烁，具有可变延迟，因此所有端口设置都可以，但是当我尝试使用具有中断的 tiM时，似乎我无法更改更新中断标志。在调试器中输入中断服务程序，我可以单步执行它并切换LED但是一旦完成它就会直接返回到Int程序的开始。在监视窗口中，无论我使用什么代码，UIF标志都不会改变，但我可以手动更改它。在这种情况下，程序似乎在中断例程结束时挂起。这是代码
#define TIM2_CR1_ARPE（（uint8_t）0x80）/ *！＆lt;自动重新加载预加载启用掩码。 * /

#define TIM2_CR1_OPM（（uint8_t）0x08）/ *！＆lt;一个脉冲模式掩码。 * /
#define TIM2_CR1_URS（（uint8_t）0x04）/ *！＆lt;更新请求源掩码。 * /
#define TIM2_CR1_UDIS（（uint8_t）0x02）/ *！＆lt;更新DIsable面具。 * /
#define TIM2_CR1_CEN（（uint8_t）0x01）/ *！＆lt;计数器启用掩码。 * / #define TIM2_IER_UIE（（uint8_t）0x01）/ *！＆lt;更新中断启用掩码。 * /
#define TIM2_SR1_UIF（（uint8_t）0x01）/ *！＆lt;更新中断标志掩码。 * /

/ * SR2 * / void main（void）

{
DISABLE_INTERRUPTS（）;
SetupOutputPortB（）;
InitialiseTimer2（）;
SetupTimer2（）;
// enable_interrupts（）;
中main_loop（）;
返回;
} void main_loop（void）

{
而（1）
{
//我们的LED在B5端口
//打开和关闭输出然后延迟延迟（40000）;

GPIOB-> ODR ^ = BIT5; // 1＆lt;＆lt; 5; // PB.5 XOR PIN5切换//延迟闪烁正常工作
}
}
void InitialiseTimer2（）

{
TIM2-> CR1 = 0; //关闭所有与TIM2相关的内容。
TIM2-> IER = 0;
TIM2-> SR1 = 0;
TIM2-> SR2 = 0;
TIM2-> CCER1 = 0;
TIM2-> CCER2 = 0;
TIM2-> CCER1 = 0;
TIM2-> CCER2 = 0;
TIM2-> CCMR1 = 0;
TIM2-> CCMR2 = 0;
TIM2-> CCMR3 = 0;
TIM2-> CNTRH = 0;
TIM2-> CNTRL = 0;
TIM2-> PSCR = 0;
TIM2-> ARRH = 0;
TIM2-> ARRL = 0;
TIM2-> CCR1H = 0;
TIM2-> CCR1L = 0;
TIM2-> CCR2H = 0;
TIM2-> CCR2L = 0;
TIM2-> CCR3H = 0;
TIM2-> CCR3L = 0;
} void SetupTimer2（）

{
TIM2_PSCR = 0x000f; // 2 ^ PSC [3：0] Prescaler.TIM2-＆gt; ARRH = 0xef; // c3 195高字节50,000。
TIM2-> ARRL = 0xfe; // 55 85低字节50,000。
TIM2-> CR1 | = TIM2_CR1_ARPE; // 0x80的;启用自动重新加载预加载

TIM2-＆gt; IER | = TIM2_IER_UIE; // 0×01; TIM2更新中断已启用
TIM2-> CR1 | = STM8_TIMx_CR1_CEN; // 0×01;打开计时器
} @far @interrupt void TIM2_UPD_OVF_IRQHandler（void）;

// #define IRQ13 TIM2_UPD_OVF_IRQHandler @ interrupt void TIM2_UPD_OVF_IRQHandler（void）{
//中断例程被称为没问题。
GPIOB-> ODR ^ = BIT5; // PB.5 XOR PIN5

/ *甚至TIM2_SR1 = 0;不起作用* /
TIM2_SR1 ^ = TIM2_SR1_UIF; //; 0×01
/ *重置中断否则会立即再次触发。
它无论如何都要做* /
// disable_interrupts（）;
所以有人能弄清楚我在这里缺少什么吗？



以下为原文




STVD 4.3.10
Cosmic V4.3.7
eBay el cheapo STM8S003F3P6 (The blue one with the LED on B5)
Hello all. I am having a bit of a problem with I suspect basic interrupt coding. I have the LED blinking at a variable rate with a variable delay so all the port setups are OK but when I try to use TIMs with an interrupt it appears that I cannot change the Update Interrupt flag. In the debugger the interrupt service routine is entered, I can single step through it and toggle the LED but as soon as it is finished it goes straight back to the start of the Int routine. In the watch window the UIF flag does not get changed no matter what code I use but I can change it manually. In which case the program just seems to hang at the end of the interrupt routine. Here is the code
#define TIM2_CR1_ARPE ((uint8_t)0x80) /*!< Auto-Reload Preload Enable mask. */

#define TIM2_CR1_OPM ((uint8_t)0x08) /*!< One Pulse Mode mask. */
#define TIM2_CR1_URS ((uint8_t)0x04) /*!< Update Request Source mask. */
#define TIM2_CR1_UDIS ((uint8_t)0x02) /*!< Update DIsable mask. */
#define TIM2_CR1_CEN ((uint8_t)0x01) /*!< Counter Enable mask. */#define TIM2_IER_UIE ((uint8_t)0x01) /*!< Update Interrupt Enable mask. */
#define TIM2_SR1_UIF ((uint8_t)0x01) /*!< Update Interrupt Flag mask. */

/*SR2*/void main( void )

{
disable_interrupts();
SetupOutputPortB();
InitialiseTimer2();
SetupTimer2();
//enable_interrupts();
main_loop();
return;
}void main_loop(void)

{
while(1)
{
// Our LED is on Port B5
//Turn on and off the output and then delay delay(40000);

GPIOB->ODR ^= BIT5; //1<<5;// PB.5 XOR PIN5 Toggle// Delay blink works fine
}
}
void InitialiseTimer2()

{
TIM2->CR1 = 0; // Turn everything TIM2 related off.
TIM2->IER = 0;
TIM2->SR1 = 0;
TIM2->SR2 = 0;
TIM2->CCER1 = 0;
TIM2->CCER2 = 0;
TIM2->CCER1 = 0;
TIM2->CCER2 = 0;
TIM2->CCMR1 = 0;
TIM2->CCMR2 = 0;
TIM2->CCMR3 = 0;
TIM2->CNTRH = 0;
TIM2->CNTRL = 0;
TIM2->PSCR = 0;
TIM2->ARRH = 0;
TIM2->ARRL = 0;
TIM2->CCR1H = 0;
TIM2->CCR1L = 0;
TIM2->CCR2H = 0;
TIM2->CCR2L = 0;
TIM2->CCR3H = 0;
TIM2->CCR3L = 0;
}void SetupTimer2()

{
TIM2_PSCR = 0x000f; // 2^PSC[3:0] Prescaler.TIM2->ARRH = 0xef; // c3 195 High byte of 50,000.
TIM2->ARRL = 0xfe; // 55 85 Low byte of 50,000.
TIM2->CR1 |= TIM2_CR1_ARPE; //0x80; Auto reload preload enabled

TIM2->IER |= TIM2_IER_UIE; //0x01; TIM2 Update Interrupt enabled
TIM2->CR1 |= STM8_TIMx_CR1_CEN; //0x01; Turn ON timer
}@far @interrupt void TIM2_UPD_OVF_IRQHandler(void);

//#define IRQ13 TIM2_UPD_OVF_IRQHandler@interrupt void TIM2_UPD_OVF_IRQHandler(void){
// Interrupt routine is called no problem.
GPIOB->ODR ^= BIT5; // PB.5 XOR PIN5

/* Even TIM2_SR1 = 0; Does not work */
TIM2_SR1 ^= TIM2_SR1_UIF; //; 0x01
/*Reset the interrupt otherwise it will fire again straight away.
Which it does anyway */
// disable_interrupts();
}So can anybody figure out what I am missing here?