關於STM8S IAR 無法下載程序，以及無法進去中斷的問題

之前內有用過STM8  一會再用STM32 做一個小項目時 覺得STM8也有庫應該很方便就直接選了它，結果調試的時候各種心酸，本想着一天解決的任務，結果拖了三天。接下來介紹一下遇到的主要問題 以及解決方法。

1、IAR無法下載程序問題

 首先關於芯片型號設置就不說了 網上一大堆，主要是Vcap 引腳對地電容的取值，網上普遍說1uF,  由於我做了兩個板子 一個PCB一個覆銅板 PCB沒問題 ，但是覆銅板1uF 就下不進去程序，後來改成0.1uF纔可以。如果軟件配置對了，現在不進去很有可能是這個電容的問題。

2、定時器進不去中斷問題

 嘗試了TIM2 TIM4 都進不去，我是用的是風馳 分享的STM8s207寄存器版本的例程，其他都好 就是定時器不管用，各種都嘗試了，就是進不去。後來對比發現 頭文件對定時器地址定義不同，大家可以對比看一下 首先是stm8s103.h的頭文件中對TIM2的定義

/*-------------------------------------------------------------------------
 *      TIM2 register definitions
 *-----------------------------------------------------------------------*/
/* TIM2 control register 1 */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char CEN         : 1;
  unsigned char UDIS        : 1;
  unsigned char URS         : 1;
  unsigned char OPM         : 1;
  unsigned char             : 3;
  unsigned char ARPE        : 1;
} __BITS_TIM2_CR1;
#endif
__IO_REG8_BIT(TIM2_CR1,    0x5300, __READ_WRITE, __BITS_TIM2_CR1);

/* TIM2 Interrupt enable register */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char UIE         : 1;
  unsigned char CC1IE       : 1;
  unsigned char CC2IE       : 1;
  unsigned char CC3IE       : 1;
  unsigned char             : 2;
  unsigned char TIE         : 1;
} __BITS_TIM2_IER;
#endif
__IO_REG8_BIT(TIM2_IER,    0x5303, __READ_WRITE, __BITS_TIM2_IER);

/* TIM2 status register 1 */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char UIF         : 1;
  unsigned char CC1IF       : 1;
  unsigned char CC2IF       : 1;
  unsigned char CC3IF       : 1;
  unsigned char             : 2;
  unsigned char TIF         : 1;
} __BITS_TIM2_SR1;
#endif
__IO_REG8_BIT(TIM2_SR1,    0x5304, __READ_WRITE, __BITS_TIM2_SR1);

其次是stm8s207頭文件對TIM2的定義

/*-------------------------------------------------------------------------
 *      TIM2 register definitions
 *-----------------------------------------------------------------------*/
/* TIM2 control register 1 */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char CEN         : 1;
  unsigned char UDIS        : 1;
  unsigned char URS         : 1;
  unsigned char OPM         : 1;
  unsigned char             : 3;
  unsigned char ARPE        : 1;
} __BITS_TIM2_CR1;
#endif
__IO_REG8_BIT(TIM2_CR1,    0x5300, __READ_WRITE, __BITS_TIM2_CR1);

/* TIM2 interrupt enable register */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char UIE         : 1;
  unsigned char CC1IE       : 1;
  unsigned char CC2IE       : 1;
  unsigned char CC3IE       : 1;
  unsigned char             : 2;
  unsigned char TIE         : 1;
} __BITS_TIM2_IER;
#endif
__IO_REG8_BIT(TIM2_IER,    0x5301, __READ_WRITE, __BITS_TIM2_IER);

/* TIM2 status register 1 */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char UIF         : 1;
  unsigned char CC1IF       : 1;
  unsigned char CC2IF       : 1;
  unsigned char CC3IF       : 1;
  unsigned char             : 2;
  unsigned char TIF         : 1;
} __BITS_TIM2_SR1;
#endif
__IO_REG8_BIT(TIM2_SR1,    0x5302, __READ_WRITE, __BITS_TIM2_SR1);

/* TIM2 status register 2 */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char             : 1;
  unsigned char CC1OF       : 1;
  unsigned char CC2OF       : 1;
  unsigned char CC3OF       : 1;
} __BITS_TIM2_SR2;
#endif
__IO_REG8_BIT(TIM2_SR2,    0x5303, __READ_WRITE, __BITS_TIM2_SR2);

/* TIM2 event generation register */
#ifdef __IAR_SYSTEMS_ICC__
typedef struct
{
  unsigned char UG          : 1;
  unsigned char CC1G        : 1;
  unsigned char CC2G        : 1;
  unsigned char CC3G        : 1;
  unsigned char             : 2;
  unsigned char TG          : 1;
} __BITS_TIM2_EGR;
#endif
__IO_REG8_BIT(TIM2_EGR,    0x5304, __WRITE, __BITS_TIM2_EGR);

具體文檔就不找了，很明顯地址不對，所以大家在只需要把頭文件改成自己所用的單片機即可。