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File      : stm32c031xx_Vectors.s
Purpose   : Exception and interrupt vectors for stm32c031xx devices.

Additional information:
  Preprocessor Definitions
    __NO_EXTERNAL_INTERRUPTS
      If defined,
        the vector table will contain only the internal exceptions
        and interrupts.
    __VECTORS_IN_RAM
      If defined,
        an area of RAM, large enough to store the vector table,
        will be reserved.

    __OPTIMIZATION_SMALL
      If defined,
        all weak definitions of interrupt handlers will share the
        same implementation.
      If not defined,
        all weak definitions of interrupt handlers will be defined
        with their own implementation.
*/
        .syntax unified

/*********************************************************************
*
*       Macros
*
**********************************************************************
*/

//
// Directly place a vector (word) in the vector table
//
.macro VECTOR Name=
        .section .vectors, "ax"
        .code 16
        .word \Name
.endm

//
// Declare an exception handler with a weak definition
//
.macro EXC_HANDLER Name=
        //
        // Insert vector in vector table
        //
        .section .vectors, "ax"
        .word \Name
        //
        // Insert dummy handler in init section
        //
        .section .init.\Name, "ax"
        .thumb_func
        .weak \Name
        .balign 2
\Name:
        1: b 1b   // Endless loop
.endm

//
// Declare an interrupt handler with a weak definition
//
.macro ISR_HANDLER Name=
        //
        // Insert vector in vector table
        //
        .section .vectors, "ax"
        .word \Name
        //
        // Insert dummy handler in init section
        //
#if defined(__OPTIMIZATION_SMALL)
        .section .init, "ax"
        .weak \Name
        .thumb_set \Name,Dummy_Handler
#else
        .section .init.\Name, "ax"
        .thumb_func
        .weak \Name
        .balign 2
\Name:
        1: b 1b   // Endless loop
#endif
.endm

//
// Place a reserved vector in vector table
//
.macro ISR_RESERVED
        .section .vectors, "ax"
        .word 0
.endm

//
// Place a reserved vector in vector table
//
.macro ISR_RESERVED_DUMMY
        .section .vectors, "ax"
        .word Dummy_Handler
.endm

/*********************************************************************
*
*       Externals
*
**********************************************************************
*/
        .extern __stack_end__
        .extern Reset_Handler
        .extern HardFault_Handler

/*********************************************************************
*
*       Global functions
*
**********************************************************************
*/

/*********************************************************************
*
*  Setup of the vector table and weak definition of interrupt handlers
*
*/
        .section .vectors, "ax"
        .code 16
        .balign 256
        .global _vectors
_vectors:
        //
        // Internal exceptions and interrupts
        //
        VECTOR __stack_end__
        VECTOR Reset_Handler
        EXC_HANDLER NMI_Handler
        VECTOR HardFault_Handler
#ifdef __ARM_ARCH_6M__
        ISR_RESERVED
        ISR_RESERVED
        ISR_RESERVED
#else
        EXC_HANDLER MemManage_Handler
        EXC_HANDLER BusFault_Handler
        EXC_HANDLER UsageFault_Handler
#endif
        ISR_RESERVED
        ISR_RESERVED
        ISR_RESERVED
        ISR_RESERVED
        EXC_HANDLER SVC_Handler
#ifdef __ARM_ARCH_6M__
        ISR_RESERVED
#else
        EXC_HANDLER DebugMon_Handler
#endif
        ISR_RESERVED
        EXC_HANDLER PendSV_Handler
        EXC_HANDLER SysTick_Handler
        //
        // External interrupts
        //
#ifndef __NO_EXTERNAL_INTERRUPTS
        ISR_HANDLER WWDG_IRQHandler
        ISR_RESERVED
        ISR_HANDLER RTC_IRQHandler
        ISR_HANDLER FLASH_IRQHandler
        ISR_HANDLER RCC_IRQHandler
        ISR_HANDLER EXTI0_1_IRQHandler
        ISR_HANDLER EXTI2_3_IRQHandler
        ISR_HANDLER EXTI4_15_IRQHandler
        ISR_RESERVED
        ISR_HANDLER DMA1_Channel1_IRQHandler
        ISR_HANDLER DMA1_Channel2_3_IRQHandler
        ISR_HANDLER DMAMUX1_IRQHandler
        ISR_HANDLER ADC1_IRQHandler
        ISR_HANDLER TIM1_BRK_UP_TRG_COM_IRQHandler
        ISR_HANDLER TIM1_CC_IRQHandler
        ISR_RESERVED
        ISR_HANDLER TIM3_IRQHandler
        ISR_RESERVED
        ISR_RESERVED
        ISR_HANDLER TIM14_IRQHandler
        ISR_RESERVED
        ISR_HANDLER TIM16_IRQHandler
        ISR_HANDLER TIM17_IRQHandler
        ISR_HANDLER I2C1_IRQHandler
        ISR_RESERVED
        ISR_HANDLER SPI1_IRQHandler
        ISR_RESERVED
        ISR_HANDLER USART1_IRQHandler
        ISR_HANDLER USART2_IRQHandler
#endif
        //
        .section .vectors, "ax"
_vectors_end:

#ifdef __VECTORS_IN_RAM
        //
        // Reserve space with the size of the vector table
        // in the designated RAM section.
        //
        .section .vectors_ram, "ax"
        .balign 256
        .global _vectors_ram

_vectors_ram:
        .space _vectors_end - _vectors, 0
#endif

/*********************************************************************
*
*  Dummy handler to be used for reserved interrupt vectors
*  and weak implementation of interrupts.
*
*/
        .section .init.Dummy_Handler, "ax"
        .thumb_func
        .weak Dummy_Handler
        .balign 2
Dummy_Handler:
        1: b 1b   // Endless loop


/*************************** End of file ****************************/
