我想修改EEPROM中的Option bytes字节，Option bytes用于配置硬件特性和存储器保护状态。我想修改MCU的硬件特性，默认的AFR0不是定时器2的输出通道1，我要把该通道配置为定时器2的通道1，但我不知道该怎样在软件中修改。文档上面说“选项字节可以在ICP/SWIM模式中或IAP模式中修改。”从上面的英文字面看修改时好像都需要连接SWIM,不知道改怎么弄不需要SWIM连接，直接一次烧写完运行软件就修改选项字节，这样有利于生产。
main.c： #include "stm8s103f2u.h" //int a,b,c; void initLED(void); void initTIM4(void); /*void delay_10us(int us); void delay_ms(unsigned int ms);*/ @far @interrupt void TIM4light(void); main() { initLED(); initTIM4(); _asm("rim"); TIM4_CR1|=0x01; while (1){ } } void initLED(void){ PC_DDR=0x70; PC_CR1=~0x70; PC_CR2=~0x70; // PC_ODR=0x70; } void initTIM4(void){ TIM4_PSCR=0x07; TIM4_IER=0x01; TIM4_CNTR=255; TIM4_ARR=255; } 中断向量表： /* BASIC INTERRUPT VECTOR TABLE FOR STM8 devices * Copyright (c) 2007 STMicroelectronics */ #include "stm8s103f2u.h" int i; typedef void @far (*interrupt_handler_t)(void); struct interrupt_vector { unsigned char interrupt_instruction; interrupt_handler_t interrupt_handler; }; @far @interrupt void NonHandledInterrupt (void) { return; } @far @interrupt void TIM4light (void) { i++; if(i==61) { i=0; if(PC_ODR==0x70) { PC_ODR=~0x70; } else { C_ODR=0x70; } } TIM4_SR=0x00; return; } extern void _stext(); /* startup routine */ struct interrupt_vector const _vectab[] = { {0x82, (interrupt_handler_t)_stext}, /* reset */ {0x82, NonHandledInterrupt}, /* trap */ {0x82, NonHandledInterrupt}, /* irq0 */ {0x82, NonHandledInterrupt}, /* irq1 */ {0x82, NonHandledInterrupt}, /* irq2 */ {0x82, NonHandledInterrupt}, /* irq3 */ {0x82, NonHandledInterrupt}, /* irq4 */ {0x82, NonHandledInterrupt}, /* irq5 */ {0x82, NonHandledInterrupt}, /* irq6 */ {0x82, NonHandledInterrupt}, /* irq7 */ {0x82, NonHandledInterrupt}, /* irq8 */ {0x82, NonHandledInterrupt}, /* irq9 */ {0x82, NonHandledInterrupt}, /* irq10 */ {0x82, NonHandledInterrupt}, /* irq11 */ {0x82, NonHandledInterrupt}, /* irq12 */ {0x82, NonHandledInterrupt}, /* irq13 */ {0x82, NonHandledInterrupt}, /* irq14 */ {0x82, NonHandledInterrupt}, /* irq15 */ {0x82, NonHandledInterrupt}, /* irq16 */ {0x82, NonHandledInterrupt}, /* irq17 */ {0x82, NonHandledInterrupt}, /* irq18 */ {0x82, NonHandledInterrupt}, /* irq19 */ {0x82, NonHandledInterrupt}, /* irq20 */ {0x82, NonHandledInterrupt}, /* irq21 */ {0x82, NonHandledInterrupt}, /* irq22 */ {0x82, TIM4light}, /* irq23 */ {0x82, NonHandledInterrupt}, /* irq24 */ {0x82, NonHandledInterrupt}, /* irq25 */ {0x82, NonHandledInterrupt}, /* irq26 */ {0x82, NonHandledInterrupt}, /* irq27 */ {0x82, NonHandledInterrupt}, /* irq28 */ {0x82, NonHandledInterrupt}, /* irq29 */ }; 我的也进入不了中断，求大神！
GPIO时钟是什么？没有找到相关的资料，不知道定时器1的通道1作为PWM还要配置GPIO时钟，求高手给个相关的例子或者直接以定时1的通道1作为PWM的输出口为例给个实例，非常感谢你的无私解答，很感谢！
