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在用IAR的高版本编译器对较低版本下建立的进行工程编译的时候会出现以下错误：
Error[Li005] no definition for "__program_start"
这是你需要对stm32f10x_vector.c做一些修改，如下所示：
将原先程序中的
void
__program_start( void ); #pragma location = "INTVEC"
/* STM32F10x Vector Table entries */
const intvec_elem __vector_table[] =
{
{ .__ptr = __sfe( "CSTACK" ) },
__program_start, 做如下更改即可正确编译：
void
__iar_program_start(void); #pragma location = "INTVEC"
/* STM32F10x Vector Table entries */
const intvec_elem __vector_table[] =
{
{ .__ptr = __sfe( "CSTACK" ) },
__iar_program_start, 需要注意的是在iar_program_start, 前面一定要有两个下划线！！！
link通过了，不过debug的时候出现
User Error: Base address of vector table has incorrect alignment, vector base addr = 0x00000864.
好像是说向量表有错。stm32f10x_vector.c里是这样定义的：
const intvec_elem __vector_table[] =
{
{ .__ptr = __sfe( "CSTACK" ) },
__program_start,
NMIException,
HardFaultException,
MemManageException,
BusFaultException,
UsageFaultException,
0, 0, 0, 0, /* Reserved */
SVCHandler,
DebugMonitor,
0, /* Reserved */
PendSVC,
SysTickHandler,
WWDG_IRQHandler,
PVD_IRQHandler,
TAMPER_IRQHandler,
RTC_IRQHandler,
FLASH_IRQHandler,
RCC_IRQHandler,
EXTI0_IRQHandler,
EXTI1_IRQHandler,
EXTI2_IRQHandler,
EXTI3_IRQHandler,
EXTI4_IRQHandler,
DMAChannel1_IRQHandler,
DMAChannel2_IRQHandler,
DMAChannel3_IRQHandler,
DMAChannel4_IRQHandler,
DMAChannel5_IRQHandler,
DMAChannel6_IRQHandler,
DMAChannel7_IRQHandler,
ADC_IRQHandler,
USB_HP_CAN_TX_IRQHandler,
USB_LP_CAN_RX0_IRQHandler,
CAN_RX1_IRQHandler,
CAN_SCE_IRQHandler,
EXTI9_5_IRQHandler,
TIM1_BRK_IRQHandler,
TIM1_UP_IRQHandler,
TIM1_TRG_COM_IRQHandler,
TIM1_CC_IRQHandler,
TIM2_IRQHandler,
TIM3_IRQHandler,
TIM4_IRQHandler,
I2C1_EV_IRQHandler,
I2C1_ER_IRQHandler,
I2C2_EV_IRQHandler,
I2C2_ER_IRQHandler,
SPI1_IRQHandler,
SPI2_IRQHandler,
USART1_IRQHandler,
USART2_IRQHandler,
USART3_IRQHandler,
EXTI15_10_IRQHandler,
RTCAlarm_IRQHandler,
USBWakeUp_IRQHandler,
};
| 需要用5.3版本例程下的stm32f10x_vector.c替换4.4版本的stm32f10x_vector.c |
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