00856c8cae
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2129 42af7a65-404d-4744-a932-0658087f49c3
533 lines
30 KiB
ArmAsm
533 lines
30 KiB
ArmAsm
/************************************************************************************
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* arch/arm/src/stm32/stm32_vectors.S
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* arch/arm/src/chip/stm32_vectors.S
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*
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* Copyright (C) 2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include <arch/irq.h>
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/************************************************************************************
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* Preprocessor Definitions
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************************************************************************************/
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/* Memory Map:
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*
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* 0x0800:0000 - Beginning of FLASH. Address of vectors (if not using bootloader)
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* Mapped to address 0x0000:0000 at boot time.
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* 0x0800:3000 - Address of vectors if using bootloader
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* 0x0803:ffff - End of flash
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* 0x2000:0000 - Start of SRAM and start of .data (_sdata)
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* - End of .data (_edata) abd start of .bss (_sbss)
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* - End of .bss (_ebss) and bottom of idle stack
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* - _ebss + CONFIG_IDLETHREAD_STACKSIZE = end of idle stack, start of heap
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* 0x2000:ffff - End of SRAM and end of heap
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*/
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#define IDLE_STACK (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
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#define HEAP_BASE (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
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/* The Cortex-M3 return from interrupt is unusual. We provide the following special
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* address to the BX instruction. The particular value also forces a return to
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* thread mode and covers state from the main stack point, the MSP (vs. the MSP).
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*/
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#define EXC_RETURN 0xfffffff9
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/************************************************************************************
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* Global Symbols
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************************************************************************************/
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.globl __start
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.syntax unified
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.thumb
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.file "stm32_vectors.S"
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/************************************************************************************
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* Macros
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************************************************************************************/
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/* On entry into an IRQ, the hardware automatically saves the xPSR, PC, LR, R12, R0-R3
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* registers on the stack, then branches to an instantantiation of the following
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* macro. This macro simply loads the IRQ number into R0, then jumps to the common
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* IRQ handling logic.
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*/
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.macro HANDLER, label, irqno
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.thumb_func
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\label:
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mov r0, #\irqno
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b stm32_common
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.endm
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/************************************************************************************
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* Vectors
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************************************************************************************/
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.section .vectors, "ax"
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.code 16
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.align 2
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.globl stm32_vectors
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.type stm32_vectors, function
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stm32_vectors:
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/* Processor Exceptions */
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.word IDLE_STACK /* Vector 0: Reset stack pointer */
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.word __start /* Vector 1: Reset vector */
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.word stm32_nmi /* Vector 2: Non-Maskable Interrupt (NMI) */
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.word stm32_hardfault /* Vector 3: Hard fault */
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.word stm32_mpu /* Vector 4: Memory management (MPU) */
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.word stm32_busfault /* Vector 5: Bus fault */
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.word stm32_usagefault /* Vector 6: Usage fault */
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.word stm32_reserved /* Vector 7: Reserved */
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.word stm32_reserved /* Vector 8: Reserved */
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.word stm32_reserved /* Vector 9: Reserved */
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.word stm32_reserved /* Vector 10: Reserved */
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.word stm32_svcall /* Vector 11: SVC call */
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.word stm32_dbgmonitor /* Vector 12: Debug monitor */
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.word stm32_reserved /* Vector 13: Reserved */
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.word stm32_pendsv /* Vector 14: Pendable system service request */
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.word stm32_systick /* Vector 15: System tick */
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/* External Interrupts */
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#ifdef CONFIG_STM32_CONNECTIVITY_LINE
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.word stm32_wwdg /* Vector 16+0: Window Watchdog interrupt */
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.word stm32_pvd /* Vector 16+1: PVD through EXTI Line detection interrupt */
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.word stm32_tamper /* Vector 16+2: Tamper interrupt */
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.word stm32_rtc /* Vector 16+3: RTC global interrupt */
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.word stm32_flash /* Vector 16+4: Flash global interrupt */
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.word stm32_rcc /* Vector 16+5: RCC global interrupt */
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.word stm32_exti0 /* Vector 16+6: EXTI Line 0 interrupt */
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.word stm32_exti1 /* Vector 16+7: EXTI Line 1 interrupt */
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.word stm32_exti2 /* Vector 16+8: EXTI Line 2 interrupt */
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.word stm32_exti3 /* Vector 16+9: EXTI Line 3 interrupt */
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.word stm32_exti4 /* Vector 16+10: EXTI Line 4 interrupt */
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.word stm32_dma1ch1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
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.word stm32_dma1ch2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
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.word stm32_dma1ch3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
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.word stm32_dma1ch4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
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.word stm32_dma1ch5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
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.word stm32_dma1ch6 /* Vector 16+16: DMA1 Channel 7 global interrupt */
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.word stm32_adc12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
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.word stm32_can1tx /* Vector 16+19: CAN1 TX interrupts */
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.word stm32_can1rx0 /* Vector 16+20: CAN1 RX0 interrupts */
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.word stm32_can1rx /* Vector 16+21: CAN1 RX1 interrupt */
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.word stm32_can1sce /* Vector 16+22: CAN1 SCE interrupt */
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.word stm32_exti95 /* Vector 16+23: EXTI Line[9:5] interrupts */
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.word stm32_tim1brk /* Vector 16+24: TIM1 Break interrupt */
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.word stm32_tim1up /* Vector 16+25: TIM1 Update interrupt */
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.word stm32_tim1trgcom /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
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.word stm32_tim1cc /* Vector 16+27: TIM1 Capture Compare interrupt */
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.word stm32_tim2 /* Vector 16+28: TIM2 global interrupt */
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.word stm32_tim3 /* Vector 16+29: TIM3 global interrupt */
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.word stm32_tim4 /* Vector 16+30: TIM4 global interrupt */
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.word stm32_i2c1ev /* Vector 16+31: I2C1 event interrupt */
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.word stm32_i2c1er /* Vector 16+32: I2C1 error interrupt */
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.word stm32_i2c2ev /* Vector 16+33: I2C2 event interrupt */
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.word stm32_i2c2er /* Vector 16+34: I2C2 error interrupt */
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.word stm32_spi1 /* Vector 16+35: SPI1 global interrupt */
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.word stm32_spi2 /* Vector 16+36: SPI2 global interrupt */
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.word stm32_usart1 /* Vector 16+37: USART1 global interrupt */
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.word stm32_usart2 /* Vector 16+38: USART2 global interrupt */
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.word stm32_usart3 /* Vector 16+39: USART3 global interrupt */
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.word stm32_exti1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
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.word stm32_rtcalr /* Vector 16+41: RTC alarm through EXTI line interrupt */
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.word stm32_otgfswkup /* Vector 16+42: USB On-The-Go FS Wakeup through EXTI line interrupt */
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.word stm32_reserved /* Vector 16+43: Reserved */
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.word stm32_reserved /* Vector 16+44: Reserved */
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.word stm32_reserved /* Vector 16+45: Reserved */
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.word stm32_reserved /* Vector 16+46: Reserved */
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.word stm32_reserved /* Vector 16+47: Reserved */
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.word stm32_reserved /* Vector 16+48: Reserved */
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.word stm32_reserved /* Vector 16+49: Reserved */
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.word stm32_tim5 /* Vector 16+50: TIM5 global interrupt */
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.word stm32_spi3 /* Vector 16+51: SPI3 global interrupt */
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.word stm32_uart4 /* Vector 16+52: UART4 global interrupt */
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.word stm32_uart5 /* Vector 16+53: UART5 global interrupt */
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.word stm32_tim6 /* Vector 16+54: TIM6 global interrupt */
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.word stm32_tim7 /* Vector 16+55: TIM7 global interrupt */
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.word stm32_dma2ch1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
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.word stm32_dma2ch2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
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.word stm32_dma2ch3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
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.word stm32_dma2ch4 /* Vector 16+59: DMA2 Channel 4 global interrupt */
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.word stm32_dma2ch5 /* Vector 16+60: DMA2 Channel 5 global interrupt */
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.word stm32_eth /* Vector 16+61: Ethernet global interrupt */
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.word stm32_ethwkup /* Vector 16+62: Ethernet Wakeup through EXTI line interrupt */
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.word stm32_can2tx /* Vector 16+63: CAN2 TX interrupts */
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.word stm32_can2rx0 /* Vector 16+64: CAN2 RX0 interrupts */
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.word stm32_can2rx1 /* Vector 16+65: CAN2 RX1 interrupt */
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.word stm32_can2sce /* Vector 16+66: CAN2 SCE interrupt */
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.word stm32_otgfs /* Vector 16+67: USB On The Go FS global interrupt */
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#else
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.word stm32_wwdg /* Vector 16+0: Window Watchdog interrupt */
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.word stm32_pvd /* Vector 16+1: PVD through EXTI Line detection interrupt */
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.word stm32_tamper /* Vector 16+2: Tamper interrupt */
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.word stm32_rtc /* Vector 16+3: RTC global interrupt */
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.word stm32_flash /* Vector 16+4: Flash global interrupt */
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.word stm32_rcc /* Vector 16+5: RCC global interrupt */
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.word stm32_exti0 /* Vector 16+6: EXTI Line 0 interrupt */
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.word stm32_exti1 /* Vector 16+7: EXTI Line 1 interrupt */
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.word stm32_exti2 /* Vector 16+8: EXTI Line 2 interrupt */
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.word stm32_exti3 /* Vector 16+9: EXTI Line 3 interrupt */
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.word stm32_exti4 /* Vector 16+10: EXTI Line 4 interrupt */
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.word stm32_dma1ch1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
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.word stm32_dma1ch2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
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.word stm32_dma1ch3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
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.word stm32_dma1ch4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
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.word stm32_dma1ch5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
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.word stm32_dma1ch6 /* Vector 16+16: DMA1 Channel 6 global interrupt */
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.word stm32_dma1ch7 /* Vector 16+17: DMA1 Channel 7 global interrupt */
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.word stm32_adc12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
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.word stm32_usbhpcantx /* Vector 16+19: USB High Priority or CAN TX interrupts*/
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.word stm32_usblpcanrx0 /* Vector 16+20: USB Low Priority or CAN RX0 interrupts*/
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.word stm32_can1rx1 /* Vector 16+21: CAN1 RX1 interrupt */
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.word stm32_can1sce /* Vector 16+22: CAN1 SCE interrupt */
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.word stm32_exti95 /* Vector 16+23: EXTI Line[9:5] interrupts */
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.word stm32_tim1brk /* Vector 16+24: TIM1 Break interrupt */
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.word stm32_tim1up /* Vector 16+25: TIM1 Update interrupt */
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.word stm32_tim1rtgcom /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
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.word stm32_tim1cc /* Vector 16+27: TIM1 Capture Compare interrupt */
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.word stm32_tim2 /* Vector 16+28: TIM2 global interrupt */
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.word stm32_tim3 /* Vector 16+29: TIM3 global interrupt */
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.word stm32_tim4 /* Vector 16+30: TIM4 global interrupt */
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.word stm32_i2c1ev /* Vector 16+31: I2C1 event interrupt */
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.word stm32_i2c1er /* Vector 16+32: I2C1 error interrupt */
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.word stm32_i2c2ev /* Vector 16+33: I2C2 event interrupt */
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.word stm32_i2c2er /* Vector 16+34: I2C2 error interrupt */
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.word stm32_spi1 /* Vector 16+35: SPI1 global interrupt */
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.word stm32_spi2 /* Vector 16+36: SPI2 global interrupt */
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.word stm32_usart1 /* Vector 16+37: USART1 global interrupt */
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.word stm32_usart2 /* Vector 16+38: USART2 global interrupt */
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.word stm32_usart3 /* Vector 16+39: USART3 global interrupt */
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.word stm32_exti1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
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.word stm32_rtcalr /* Vector 16+41: RTC alarm through EXTI line interrupt */
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.word stm32_usbwkup /* Vector 16+42: USB wakeup from suspend through EXTI line interrupt*/
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.word stm32_tim8brk /* Vector 16+43: TIM8 Break interrupt */
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.word stm32_tim8up /* Vector 16+44: TIM8 Update interrupt */
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.word stm32_tim8trgcom /* Vector 16+45: TIM8 Trigger and Commutation interrupts */
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.word stm32_tim8cc /* Vector 16+46: TIM8 Capture Compare interrupt */
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.word stm32_adc3 /* Vector 16+47: ADC3 global interrupt */
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.word stm32_fsmc /* Vector 16+48: FSMC global interrupt */
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.word stm32_sdio /* Vector 16+49: SDIO global interrupt */
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.word stm32_tim5 /* Vector 16+50: TIM5 global interrupt */
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.word stm32_spi3 /* Vector 16+51: SPI3 global interrupt */
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.word stm32_uart4 /* Vector 16+52: UART4 global interrupt */
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.word stm32_uart5 /* Vector 16+53: UART5 global interrupt */
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.word stm32_tim6 /* Vector 16+54: TIM6 global interrupt */
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.word stm32_tim7 /* Vector 16+55: TIM7 global interrupt */
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.word stm32_dma2ch1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
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.word stm32_dma2ch2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
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.word stm32_dma2ch3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
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.word stm32_dma2ch45 /* Vector 16+59: DMA2 Channel 4&5 global interrupt */
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#endif
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.size stm32_vectors, .-stm32_vectors
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/************************************************************************************
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* .text
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************************************************************************************/
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.text
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.type handlers, function
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.thumb_func
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handlers:
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HANDLER stm32_reserved, STM32_IRQ_RESERVED /* Unexpected/reserved vector */
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HANDLER stm32_nmi, STM32_IRQ_NMI /* Vector 2: Non-Maskable Interrupt (NMI) */
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HANDLER stm32_hardfault, STM32_IRQ_HARDFAULT /* Vector 3: Hard fault */
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HANDLER stm32_mpu, STM32_IRQ_MPU /* Vector 4: Memory management (MPU) */
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HANDLER stm32_busfault, STM32_IRQ_BUSFAULT /* Vector 5: Bus fault */
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HANDLER stm32_usagefault, STM32_IRQ_USAGEFAULT /* Vector 6: Usage fault */
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HANDLER stm32_svcall, STM32_IRQ_SVCALL /* Vector 11: SVC call */
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HANDLER stm32_dbgmonitor, STM32_IRQ_DBGMONITOR /* Vector 12: Debug Monitor */
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HANDLER stm32_pendsv, STM32_IRQ_PENDSV /* Vector 14: Penable system service request */
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HANDLER stm32_systick, STM32_IRQ_SYSTICK /* Vector 15: System tick */
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#ifdef CONFIG_STM32_CONNECTIVITY_LINE
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HANDLER stm32_wwdg, STM32_IRQ_WWDG /* Vector 16+0: Window Watchdog interrupt */
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HANDLER stm32_pvd, STM32_IRQ_PVD /* Vector 16+1: PVD through EXTI Line detection interrupt */
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HANDLER stm32_tamper, STM32_IRQ_TAMPER /* Vector 16+2: Tamper interrupt */
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HANDLER stm32_rtc, STM32_IRQ_RTC /* Vector 16+3: RTC global interrupt */
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HANDLER stm32_flash, STM32_IRQ_FLASH /* Vector 16+4: Flash global interrupt */
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HANDLER stm32_rcc, STM32_IRQ_RCC /* Vector 16+5: RCC global interrupt */
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HANDLER stm32_exti0, STM32_IRQ_EXTI0 /* Vector 16+6: EXTI Line 0 interrupt */
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HANDLER stm32_exti1, STM32_IRQ_EXTI1 /* Vector 16+7: EXTI Line 1 interrupt */
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HANDLER stm32_exti2, STM32_IRQ_EXTI2 /* Vector 16+8: EXTI Line 2 interrupt */
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HANDLER stm32_exti3, STM32_IRQ_EXTI3 /* Vector 16+9: EXTI Line 3 interrupt */
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HANDLER stm32_exti4, STM32_IRQ_EXTI4 /* Vector 16+10: EXTI Line 4 interrupt */
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HANDLER stm32_dma1ch1, STM32_IRQ_DMA1CH1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
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HANDLER stm32_dma1ch2, STM32_IRQ_DMA1CH2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
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HANDLER stm32_dma1ch3, STM32_IRQ_DMA1CH3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
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HANDLER stm32_dma1ch4, STM32_IRQ_DMA1CH4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
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HANDLER stm32_dma1ch5, STM32_IRQ_DMA1CH5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
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HANDLER stm32_dma1ch6, STM32_IRQ_DMA1CH6 /* Vector 16+16: DMA1 Channel 7 global interrupt */
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HANDLER stm32_adc12, STM32_IRQ_ADC12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
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HANDLER stm32_can1tx, STM32_IRQ_CAN1TX /* Vector 16+19: CAN1 TX interrupts */
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HANDLER stm32_can1rx0, STM32_IRQ_CAN1RX0 /* Vector 16+20: CAN1 RX0 interrupts */
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HANDLER stm32_can1rx, STM32_IRQ_CAN1RX1 /* Vector 16+21: CAN1 RX1 interrupt */
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HANDLER stm32_can1sce, STM32_IRQ_CAN1SCE /* Vector 16+22: CAN1 SCE interrupt */
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HANDLER stm32_exti95, STM32_IRQ_EXTI95 /* Vector 16+23: EXTI Line[9:5] interrupts */
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HANDLER stm32_tim1brk, STM32_IRQ_TIM1BRK /* Vector 16+24: TIM1 Break interrupt */
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HANDLER stm32_tim1up, STM32_IRQ_TIM1UP /* Vector 16+25: TIM1 Update interrupt */
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HANDLER stm32_tim1trgcom, STM32_IRQ_TIM1TRGCOM /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
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HANDLER stm32_tim1cc, STM32_IRQ_TIM1CC /* Vector 16+27: TIM1 Capture Compare interrupt */
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HANDLER stm32_tim2, STM32_IRQ_TIM2 /* Vector 16+28: TIM2 global interrupt */
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HANDLER stm32_tim3, STM32_IRQ_TIM3 /* Vector 16+29: TIM3 global interrupt */
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HANDLER stm32_tim4, STM32_IRQ_TIM4 /* Vector 16+30: TIM4 global interrupt */
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HANDLER stm32_i2c1ev, STM32_IRQ_I2C1EV /* Vector 16+31: I2C1 event interrupt */
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HANDLER stm32_i2c1er, STM32_IRQ_I2C1ER /* Vector 16+32: I2C1 error interrupt */
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HANDLER stm32_i2c2ev, STM32_IRQ_I2C2EV /* Vector 16+33: I2C2 event interrupt */
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HANDLER stm32_i2c2er, STM32_IRQ_I2C2ER /* Vector 16+34: I2C2 error interrupt */
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HANDLER stm32_spi1, STM32_IRQ_SPI1 /* Vector 16+35: SPI1 global interrupt */
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HANDLER stm32_spi2, STM32_IRQ_SPI2 /* Vector 16+36: SPI2 global interrupt */
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HANDLER stm32_usart1, STM32_IRQ_USART1 /* Vector 16+37: USART1 global interrupt */
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HANDLER stm32_usart2, STM32_IRQ_USART2 /* Vector 16+38: USART2 global interrupt */
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HANDLER stm32_usart3, STM32_IRQ_USART3 /* Vector 16+39: USART3 global interrupt */
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HANDLER stm32_exti1510, STM32_IRQ_EXTI1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
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HANDLER stm32_rtcalr, STM32_IRQ_RTCALR /* Vector 16+41: RTC alarm through EXTI line interrupt */
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HANDLER stm32_otgfswkup, STM32_IRQ_OTGFSWKUP /* Vector 16+42: USB On-The-Go FS Wakeup through EXTI line interrupt */
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HANDLER stm32_tim5, STM32_IRQ_TIM5 /* Vector 16+50: TIM5 global interrupt */
|
|
HANDLER stm32_spi3, STM32_IRQ_SPI3 /* Vector 16+51: SPI3 global interrupt */
|
|
HANDLER stm32_uart4 , STM32_IRQ_UART4 /* Vector 16+52: UART4 global interrupt */
|
|
HANDLER stm32_uart5, STM32_IRQ_UART5 /* Vector 16+53: UART5 global interrupt */
|
|
HANDLER stm32_tim6, STM32_IRQ_TIM6 /* Vector 16+54: TIM6 global interrupt */
|
|
HANDLER stm32_tim7, STM32_IRQ_TIM7 /* Vector 16+55: TIM7 global interrupt */
|
|
HANDLER stm32_dma2ch1, STM32_IRQ_DMA2CH1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
|
|
HANDLER stm32_dma2ch2, STM32_IRQ_DMA2CH2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
|
|
HANDLER stm32_dma2ch3, STM32_IRQ_DMA2CH3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
|
|
HANDLER stm32_dma2ch4, STM32_IRQ_DMA2CH4 /* Vector 16+59: DMA2 Channel 4 global interrupt */
|
|
HANDLER stm32_dma2ch5, STM32_IRQ_DMA2CH5 /* Vector 16+60: DMA2 Channel 5 global interrupt */
|
|
HANDLER stm32_eth, STM32_IRQ_ETH /* Vector 16+61: Ethernet global interrupt */
|
|
HANDLER stm32_ethwkup, STM32_IRQ_ETHWKUP /* Vector 16+62: Ethernet Wakeup through EXTI line interrupt */
|
|
HANDLER stm32_can2tx, STM32_IRQ_CAN2TX /* Vector 16+63: CAN2 TX interrupts */
|
|
HANDLER stm32_can2rx0, STM32_IRQ_CAN2RX0 /* Vector 16+64: CAN2 RX0 interrupts */
|
|
HANDLER stm32_can2rx1, STM32_IRQ_CAN2RX1 /* Vector 16+65: CAN2 RX1 interrupt */
|
|
HANDLER stm32_can2sce, STM32_IRQ_CAN2SCE /* Vector 16+66: CAN2 SCE interrupt */
|
|
HANDLER stm32_otgfs, STM32_IRQ_OTGFS /* Vector 16+67: USB On The Go FS global interrupt */
|
|
#else
|
|
HANDLER stm32_wwdg, STM32_IRQ_WWDG /* Vector 16+0: Window Watchdog interrupt */
|
|
HANDLER stm32_pvd, STM32_IRQ_PVD /* Vector 16+1: PVD through EXTI Line detection interrupt */
|
|
HANDLER stm32_tamper, STM32_IRQ_TAMPER /* Vector 16+2: Tamper interrupt */
|
|
HANDLER stm32_rtc, STM32_IRQ_RTC /* Vector 16+3: RTC global interrupt */
|
|
HANDLER stm32_flash, STM32_IRQ_FLASH /* Vector 16+4: Flash global interrupt */
|
|
HANDLER stm32_rcc, STM32_IRQ_RCC /* Vector 16+5: RCC global interrupt */
|
|
HANDLER stm32_exti0, STM32_IRQ_EXTI0 /* Vector 16+6: EXTI Line 0 interrupt */
|
|
HANDLER stm32_exti1, STM32_IRQ_EXTI1 /* Vector 16+7: EXTI Line 1 interrupt */
|
|
HANDLER stm32_exti2, STM32_IRQ_EXTI2 /* Vector 16+8: EXTI Line 2 interrupt */
|
|
HANDLER stm32_exti3, STM32_IRQ_EXTI3 /* Vector 16+9: EXTI Line 3 interrupt */
|
|
HANDLER stm32_exti4, STM32_IRQ_EXTI4 /* Vector 16+10: EXTI Line 4 interrupt */
|
|
HANDLER stm32_dma1ch1, STM32_IRQ_DMA1CH1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
|
|
HANDLER stm32_dma1ch2, STM32_IRQ_DMA1CH2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
|
|
HANDLER stm32_dma1ch3, STM32_IRQ_DMA1CH3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
|
|
HANDLER stm32_dma1ch4, STM32_IRQ_DMA1CH4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
|
|
HANDLER stm32_dma1ch5, STM32_IRQ_DMA1CH5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
|
|
HANDLER stm32_dma1ch6, STM32_IRQ_DMA1CH6 /* Vector 16+16: DMA1 Channel 6 global interrupt */
|
|
HANDLER stm32_dma1ch7, STM32_IRQ_DMA1CH7 /* Vector 16+17: DMA1 Channel 7 global interrupt */
|
|
HANDLER stm32_adc12, STM32_IRQ_ADC12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
|
|
HANDLER stm32_usbhpcantx, STM32_IRQ_USBHPCANTX /* Vector 16+19: USB High Priority or CAN TX interrupts*/
|
|
HANDLER stm32_usblpcanrx0, STM32_IRQ_USBLPCANRX0 /* Vector 16+20: USB Low Priority or CAN RX0 interrupts*/
|
|
HANDLER stm32_can1rx1, STM32_IRQ_CAN1RX1 /* Vector 16+21: CAN1 RX1 interrupt */
|
|
HANDLER stm32_can1sce, STM32_IRQ_CAN1SCE /* Vector 16+22: CAN1 SCE interrupt */
|
|
HANDLER stm32_exti95, STM32_IRQ_EXTI95 /* Vector 16+23: EXTI Line[9:5] interrupts */
|
|
HANDLER stm32_tim1brk, STM32_IRQ_TIM1BRK /* Vector 16+24: TIM1 Break interrupt */
|
|
HANDLER stm32_tim1up, STM32_IRQ_TIM1UP /* Vector 16+25: TIM1 Update interrupt */
|
|
HANDLER stm32_tim1rtgcom, STM32_IRQ_TIM1TRGCOM /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
|
|
HANDLER stm32_tim1cc, STM32_IRQ_TIM1CC /* Vector 16+27: TIM1 Capture Compare interrupt */
|
|
HANDLER stm32_tim2, STM32_IRQ_TIM2 /* Vector 16+28: TIM2 global interrupt */
|
|
HANDLER stm32_tim3, STM32_IRQ_TIM3 /* Vector 16+29: TIM3 global interrupt */
|
|
HANDLER stm32_tim4, STM32_IRQ_TIM4 /* Vector 16+30: TIM4 global interrupt */
|
|
HANDLER stm32_i2c1ev, STM32_IRQ_I2C1EV /* Vector 16+31: I2C1 event interrupt */
|
|
HANDLER stm32_i2c1er, STM32_IRQ_I2C1ER /* Vector 16+32: I2C1 error interrupt */
|
|
HANDLER stm32_i2c2ev, STM32_IRQ_I2C2EV /* Vector 16+33: I2C2 event interrupt */
|
|
HANDLER stm32_i2c2er, STM32_IRQ_I2C2ER /* Vector 16+34: I2C2 error interrupt */
|
|
HANDLER stm32_spi1, STM32_IRQ_SPI1 /* Vector 16+35: SPI1 global interrupt */
|
|
HANDLER stm32_spi2, STM32_IRQ_SPI2 /* Vector 16+36: SPI2 global interrupt */
|
|
HANDLER stm32_usart1, STM32_IRQ_USART1 /* Vector 16+37: USART1 global interrupt */
|
|
HANDLER stm32_usart2, STM32_IRQ_USART2 /* Vector 16+38: USART2 global interrupt */
|
|
HANDLER stm32_usart3, STM32_IRQ_USART3 /* Vector 16+39: USART3 global interrupt */
|
|
HANDLER stm32_exti1510, STM32_IRQ_EXTI1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
|
|
HANDLER stm32_rtcalr, STM32_IRQ_RTCALR /* Vector 16+41: RTC alarm through EXTI line interrupt */
|
|
HANDLER stm32_usbwkup, STM32_IRQ_USBWKUP /* Vector 16+42: USB wakeup from suspend through EXTI line interrupt*/
|
|
HANDLER stm32_tim8brk, STM32_IRQ_TIM8BRK /* Vector 16+43: TIM8 Break interrupt */
|
|
HANDLER stm32_tim8up, STM32_IRQ_TIM8UP /* Vector 16+44: TIM8 Update interrupt */
|
|
HANDLER stm32_tim8trgcom, STM32_IRQ_TIM8TRGCOM /* Vector 16+45: TIM8 Trigger and Commutation interrupts */
|
|
HANDLER stm32_tim8cc, STM32_IRQ_TIM8CC /* Vector 16+46: TIM8 Capture Compare interrupt */
|
|
HANDLER stm32_adc3, STM32_IRQ_ADC3 /* Vector 16+47: ADC3 global interrupt */
|
|
HANDLER stm32_fsmc, STM32_IRQ_FSMC /* Vector 16+48: FSMC global interrupt */
|
|
HANDLER stm32_sdio, STM32_IRQ_SDIO /* Vector 16+49: SDIO global interrupt */
|
|
HANDLER stm32_tim5, STM32_IRQ_TIM5 /* Vector 16+50: TIM5 global interrupt */
|
|
HANDLER stm32_spi3, STM32_IRQ_SPI3 /* Vector 16+51: SPI3 global interrupt */
|
|
HANDLER stm32_uart4, STM32_IRQ_UART4 /* Vector 16+52: UART4 global interrupt */
|
|
HANDLER stm32_uart5, STM32_IRQ_UART5 /* Vector 16+53: UART5 global interrupt */
|
|
HANDLER stm32_tim6, STM32_IRQ_TIM6 /* Vector 16+54: TIM6 global interrupt */
|
|
HANDLER stm32_tim7, STM32_IRQ_TIM7 /* Vector 16+55: TIM7 global interrupt */
|
|
HANDLER stm32_dma2ch1, STM32_IRQ_DMA2CH1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
|
|
HANDLER stm32_dma2ch2, STM32_IRQ_DMA2CH2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
|
|
HANDLER stm32_dma2ch3, STM32_IRQ_DMA2CH3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
|
|
HANDLER stm32_dma2ch45, STM32_IRQ_DMA2CH45 /* Vector 16+59: DMA2 Channel 4&5 global interrupt */
|
|
#endif
|
|
|
|
/* Common IRQ handling logic. On entry here, the stack is like the following:
|
|
*
|
|
* REG_XPSR
|
|
* REG_R15
|
|
* REG_R14
|
|
* REG_R12
|
|
* REG_R3
|
|
* REG_R2
|
|
* REG_R1
|
|
* MSP->REG_R0
|
|
*
|
|
* and R0 contains the IRQ number
|
|
*/
|
|
|
|
stm32_common:
|
|
|
|
/* Complete the context save */
|
|
|
|
mrs r1, msp /* R1=The main stack pointer */
|
|
mov r2, r1 /* R2=Copy of the main stack pointer */
|
|
add r2, #HW_XCPT_SIZE /* R2=MSP before the interrupt was taken */
|
|
mrs r3, primask /* R3=Current PRIMASK setting */
|
|
stmdb r1!, {r2-r11} /* Save the remaining registers plus the SP value */
|
|
|
|
/* Disable interrupts, select the stack to use for interrupt handling
|
|
* and call up_doirq to handle the interrupt
|
|
*/
|
|
|
|
cpsid i /* Disable further interrupts */
|
|
|
|
/* If CONFIG_ARCH_INTERRUPTSTACK is defined, we will use a special interrupt
|
|
* stack pointer. The way that this is done here prohibits nested interrupts!
|
|
* Otherwise, we will re-use the main stack for interrupt level processing.
|
|
*/
|
|
|
|
#ifdef CONFIG_ARCH_INTERRUPTSTACK
|
|
ld sp, #up_interruptstack_base
|
|
str r1, [sp, #-4]! /* Save the MSP on the interrupt stack */
|
|
bl up_doirq /* R0=IRQ, R1=register save (msp) */
|
|
ldr r1, [sp, #+4]! /* Recover R1=main stack pointer */
|
|
#else
|
|
mov sp, r1 /* We are using the main stack pointer */
|
|
bl up_doirq /* R0=IRQ, R1=register save (msp) */
|
|
mov r1, sp /* Recover R1=main stack pointer */
|
|
#endif
|
|
|
|
/* On return from up_doirq, R0 will hold a pointer to register context
|
|
* array to use for the interrupt return. If that return value is the same
|
|
* as current stack pointer, then things are relatively easy.
|
|
*/
|
|
|
|
cmp r0, r1 /* Context switch? */
|
|
beq 1f /* Branch if no context switch */
|
|
|
|
/* We are returning with a pending context switch. This case is different
|
|
* because in this case, the register save structure does not lie on the
|
|
* stack but, rather, are within a TCB structure. We'll have to copy some
|
|
* values to the stack.
|
|
*/
|
|
|
|
add r1, r0, #SW_XCPT_SIZE /* R1=Address of HW save area in reg array */
|
|
ldmia r1, {r4-r11} /* Fetch eight registers in HW save area */
|
|
ldr r1, [r0, #(4*REG_SP)] /* R1=Value of SP before interrupt */
|
|
stmdb r1!, {r4-r11} /* Store eight registers in HW save area */
|
|
ldmia r0, {r2-r11} /* Recover R4-R11 + 2 temp values */
|
|
b 2f /* Re-join common logic */
|
|
|
|
/* We are returning with no context switch. We simply need to "unwind"
|
|
* the same stack frame that we created
|
|
*/
|
|
1:
|
|
ldmia r1!, {r2-r11} /* Recover R4-R11 + 2 temp values */
|
|
2:
|
|
msr msp, r1 /* Recover the return MSP value */
|
|
|
|
/* Do we need to restore interrupts? */
|
|
|
|
tst r3, #1 /* PRIMASK bit 1=1 means that interrupts are masked */
|
|
bne 3f
|
|
cpsie i /* Restore interrupts */
|
|
|
|
/* Always return with R14 containing the special value that will: (1)
|
|
* return to thread mode, and (2) continue to use the MSP
|
|
*/
|
|
3:
|
|
ldr r14, =EXC_RETURN /* Load the special value */
|
|
bx r14 /* And return */
|
|
.size handlers, .-handlers
|
|
|
|
/************************************************************************************
|
|
* Name: up_interruptstack/g_userstack
|
|
*
|
|
* Description:
|
|
* Shouldn't happen
|
|
*
|
|
************************************************************************************/
|
|
|
|
#if CONFIG_ARCH_INTERRUPTSTACK > 3
|
|
.bss
|
|
.align 4
|
|
up_interruptstack:
|
|
.skip (CONFIG_ARCH_INTERRUPTSTACK & ~3)
|
|
up_interruptstack_base:
|
|
.size up_interruptstack, .-up_interruptstack
|
|
#endif
|
|
|
|
/************************************************************************************
|
|
* .rodata
|
|
************************************************************************************/
|
|
|
|
.section .rodata, "a"
|
|
|
|
/* Variables: _sbss is the start of the BSS region (see ld.script) _ebss is the end
|
|
* of the BSS regsion (see ld.script). The idle task stack starts at the end of BSS
|
|
* and is of size CONFIG_IDLETHREAD_STACKSIZE. The IDLE thread is the thread that
|
|
* the system boots on and, eventually, becomes the idle, do nothing task that runs
|
|
* only when there is nothing else to run. The heap continues from there until the
|
|
* end of memory. See g_heapbase below.
|
|
*/
|
|
|
|
.globl g_heapbase
|
|
.type g_heapbase, object
|
|
g_heapbase:
|
|
.long _ebss+CONFIG_IDLETHREAD_STACKSIZE
|
|
.size g_heapbase, .-g_heapbase
|
|
|
|
.end
|