C++ codes for STM32 using Keil uVision4

Hello guys,

I having trouble in using C++ for STM32 devices using Kiel UVision4 compiler. It seems the codes are compiled and the compiled codes main() thread is working because it can turn on a LED in the trainer board.

The test program is quite simple, it will light up the LED in the main thread and it will blink the another led every 1 second in the RTC interrupt.

However the interrupt routines are not working.

Its even more weird that when i shift to purely C codes the interrupt routines are working fine. The serial port is even working properly.

However due to the complexity of project, we are left with no choice but to use mixed C/C++.

Any idea how to fixed this issue?

Thanks,
Jack

// sample main_test.cpp
// the result is the LEDs do light up

#define __cplusplus

#include "stm32f10x.h"

#include "header_global_compile_test.h"

#include "stm32f10x_it.c"

int main(void){
char *str;

// No interrupts yet can be serviced from this point until
// global interrupts are explicitly enabled.

// System Clocks Configuration
RCC_Configuration();

// Initialize chip peripherals
init_stm32();

// Interrupts Configuation
NVIC_Configuration();

// Sample turn ON LED
control_led(LED1, Bit_SET);

// Sample turn ON LED
control_led(LED2, Bit_SET);

main_loop:

goto main_loop;
}

// Interrupt code section
/************************************************** *****************************
* Function Name : RTC_IRQHandler
* Description : This function handles RTC global interrupt request.
* Input : None
* Output : None
* Return : None
************************************************** *****************************/
void RTC_IRQHandler(void)
{ static uint8 led_state;

// Toggle LED4
if (led_state > 0){
control_led(LED4, Bit_SET);
led_state = 0;
} else {
control_led(LED4, Bit_RESET);
led_state = 1;
}

if (RTC_GetITStatus(RTC_IT_SEC) != RESET){
// Clear the RTC Second interrupt
RTC_ClearITPendingBit(RTC_IT_SEC);

#if (gcomc_ENABLE_INTERRUPTS)
// increment system time
sys_time_increment();
#endif

// Wait until last write operation on RTC registers has finished
RTC_WaitForLastTask();
} }

// NVIC
/************************************************** *****************************
* Function Name : NVIC_Configuration
* Description : Configures Vector Table base location.
* Input : None
* Output : None
* Return : None
************************************************** *****************************/
void NVIC_Configuration(void){
NVIC_InitTypeDef NVIC_InitStructure;

#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif

/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

// Enable the RTC Interrupt
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriori ty = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

// Enable the USART2 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriori ty = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

}

// The purely C codes only seemed to work.

IDE-Version:
µVision V4.03
Copyright (c) Keil Elektronik GmbH / Keil Software, Inc. 1995 - 2009

Tool Version Numbers:
Toolchain: RealView MDK-ARM Version: 4.10
Toolchain Path: BIN40\
C Compiler: Armcc.Exe V4.0.0.728
Assembler: Armasm.Exe V4.0.0.728
Linker/Locator: ArmLink.Exe V4.0.0.728
Librarian: ArmAr.Exe V4.0.0.728
Hex Converter: FromElf.Exe V4.0.0.728
CPU DLL: SARMCM3.DLL V4.10
Dialog DLL: DARMSTM.DLL V1.45b