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Vector table overlap

TConl.1
Associate II

Hi I've been working on a simple project with the STM8L152R8 but recently I've run into a problem I cant get around.

When building with cosmic compiler I'm getting the follwing error:

'#error clnk Debug\test_gpio_uart.lkf:1 segments .const (0x8080-0x8118) and .const (0x8000-0x808d) overlap'

I can see in the linker that the vector table starts at 0x8000 and the main code segment starts at 0x8080

# Segment Code,Constants:
+seg .const -b 0x8080 -m 0xff80 -n .const -it
+seg .text -a .const -n .text
 
#<BEGIN VECTOR_FILE>
+seg .const -b 0x8000 -k
Debug\stm8_interrupt_vector.o

If I change the start address of the code from 0x8080 to 0x8090 it compiles okay but when I run the program nothing happens - I guess theres somewhere else I need to update the start address?

Apart from that why would my interrupt segment have overran its segment. I've tried removing everything in the 'stm8l15x_it.c' file and changed the handlers for interrupts I dont care about to 'NonHandledInterrupt' but I'm still getting the error.

Here is my 'stm8_interrupt_vector.c' file:

/*	BASIC INTERRUPT VECTOR TABLE FOR STM8 devices
 *	Copyright (c) 2007 STMicroelectronics
 */
 
#include "stm8l15x_it.h"
 
typedef void @far (*interrupt_handler_t)(void);
 
struct interrupt_vector {
	unsigned char interrupt_instruction;
	interrupt_handler_t interrupt_handler;
};
 
/*@far @interrupt void NonHandledInterrupt (void)
{
	/* in order to detect unexpected events during development, 
	   it is recommended to set a breakpoint on the following instruction
	
	return;
}*/
 
//extern void _stext();     /* startup routine */
 
struct interrupt_vector const _vectab[] = {
  {0x82, (interrupt_handler_t)_stext},      /* Reset */
  {0x82, (interrupt_handler_t)TRAP_IRQHandler},         /* TRAP - Software interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},     /* Reserved */
  {0x82, (interrupt_handler_t)FLASH_IRQHandler},            /* irq1 - FLASH interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},          /* irq2 - DMA1 channel0 and channel1 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},            /* irq3 - DMA1 channel2 and channel3 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},           /* irq4 - RTC/ CSS on LSE interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},    /* irq5 - External IT PORTE/F interrupt /PVD interrupt*/
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq6 - External IT PORTB / PORTG interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},          /* irq7 - External IT PORTD / PORTH interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},            /* irq8 - External IT PIN0 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},            /* irq9 - External IT PIN1 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},            /* irq10 - External IT PIN2 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},          /* irq11 - External IT PIN3 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq12 - External IT PIN4 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq13 - External IT PIN5 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq14 - External IT PIN6 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq15 - External IT PIN7 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq16 - LCD / AES interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq17 - CLK switch/CSS interrupt/ TIM1 Break interrupt / DAC */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq18 - ADC1 and Comparator interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq19 - TIM2 Update/Overflow/Trigger/Break / USART2 TX interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq20 - TIM2 Capture/Compare / USART2 RX interrupt */
  {0x82, (interrupt_handler_t)TIM3_UPD_OVF_TRG_BRK_USART3_TX_IRQHandler},      /* irq21 - TIM3 Update/Overflow/Trigger/Break / USART3 TX interrupt */
  {0x82, (interrupt_handler_t)TIM3_CC_USART3_RX_IRQHandler},            /* irq22 - TIM3 Capture/Compare /USART3 RX interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq23 - TIM1 Update/Overflow/Trigger/Commutation interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq24 - TIM1 Capture/Compare interrupt */
  {0x82, (interrupt_handler_t)TIM4_UPD_OVF_TRG_IRQHandler},     /* irq25 - TIM4 Update/Overflow/Trigger interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq26 - SPI1 interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq27 - USART1 TX / TIM5 Update/Overflow/Trigger/Break interrupt */
  {0x82, (interrupt_handler_t)NonHandledInterrupt},      /* irq28 - USART1 RX / TIM1 Capture/Compare interrupt */
  {0x82, (interrupt_handler_t)I2C1_SPI2_IRQHandler},      /* irq29 - I2C1 / SPI2 interrupt */
};

Any help would be appreciated.

Thanks,

1 REPLY 1
TConl.1
Associate II

Not sure wjat the issue was here but I created a new project and copied the code over bit by bit and didnt see the problem again.