用STM8S105实现程序升级，想在bootloader里可以使用中断，参考网上写的资料，中断表放在RAM中实现bootloader和APP都可以中断，RAM区域0x0780~0x07FF 放中断向量表（128字节）;但bootloader里卡住，中断函数不正常；定义了TIM1和TIM4中断，只有TIM1会中断，TIM4不进中断，或者只定义一个TIM4，TIM4中断正常，只要定义了两个以上中断就只有前面一个中断正常，后面的中断都进不了中断函数。不知道是什么原因？
一、main.c函数
#if 1
typedef void (*isr_type_t)(void);
typedef struct
{
uint16_t interrupt_instruction;
isr_type_t interrupt_handler;
}interrupt_vector;
#pragma location=0x0780
interrupt_vector vector_table_[32]={0};
#endif
#pragma vector=25
__interrupt void TIM1_UPD_OVF_TRG_BRK_IRQ(void)
{
if(TIM1_GetFlagStatus(TIM1_FLAG_UPDATE)==SET)
{
TIM1_ClearITPendingBit(TIM1_IT_UPDATE); //清除中断标志
Time1_Cnt.x1msFlag=1;
if(++Time1_Cnt.x1msCnt>500)
{
Time1_Cnt.x1msCnt=0;
LED_RUN=!LED_RUN;
}
}
}
#pragma vector=26
__interrupt void TIM4_UPD_OVF_IRQ(void)
{
if(TIM4_GetFlagStatus(TIM4_FLAG_UPDATE)==SET)
{
TIM4_ClearITPendingBit(TIM4_IT_UPDATE);
if(++Time4_Cnt.x1msCnt>1500)
{
Time4_Cnt.x1msCnt=0;
LED2=!LED2;
}
}
}
int main(void)
{
vector_table_[25].interrupt_instruction=0x8200;
vector_table_[25].interrupt_handler=(isr_type_t)&TIM1_UPD_OVF_TRG_BRK_IRQ;
vector_table_[26].interrupt_instruction=0x8200;
vector_table_[26].interrupt_handler=(isr_type_t)&TIM4_UPD_OVF_IRQ;
SystemClock_Init(HSE_Clock);
LED_Init();
Timer1_Init(16-1,1000);
Timer4_Init();
。。。
}
二、ICF文件修改
define memory with size = 16M;
define region TinyData = [from 0x00 to 0xFF];
//define region NearData = [from 0x0000 to 0x07FF];
define region NearData = [from 0x0000 to 0x077F];
define region Eeprom = [from 0x4000 to 0x43FF];
define region BootROM = [from 0x6000 to 0x67FF];
define region NearFuncCode = [from 0x8000 to 0xFFFF];
define region FarFuncCode = [from 0x8000 to 0xFFFF];
define region HugeFuncCode = [from 0x8000 to 0xFFFF]
三、stm8s_interrupt.s文件修改
__intvec:
DC8 0x82
DC24 __iar_program_start ;; RESET 0x8000
DC8 0x82
DC24 0x0784
DC8 0x82
DC24 0x0788
DC8 0x82
DC24 0x078C
DC8 0x82
DC24 0x0790
DC8 0x82
DC24 0x0794
DC8 0x82
DC24 0x0798
DC8 0x82
DC24 0x079C
DC8 0x82
DC24 0x07A0
DC8 0x82
DC24 0x07A4
DC8 0x82
DC24 0x07A8
DC8 0x82
DC24 0x07AC
DC8 0x82
DC24 0x07B0
DC8 0x82
DC24 0x07B4
DC8 0x82
DC24 0x07B8
DC8 0x82
DC24 0x07BC
DC8 0x82
DC24 0x07C0
DC8 0x82
DC24 0x07C4
DC8 0x82
DC24 0x07C8
DC8 0x82
DC24 0x07CC
DC8 0x82
DC24 0x07D0
DC8 0x82
DC24 0x07D4
DC8 0x82
DC24 0x07D8
DC8 0x82
DC24 0x07DC
DC8 0x82
DC24 0x07E0
DC8 0x82
DC24 0x07E4
DC8 0x82
DC24 0x07E8
DC8 0x82
DC24 0x07EC
DC8 0x82
DC24 0x07F0
DC8 0x82
DC24 0x07F4
DC8 0x82
DC24 0x07F8
DC8 0x82
DC24 0x07FC
END
|
|
楼主
标题置顶
标题高亮
