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415 lines
16 KiB
ArmAsm
415 lines
16 KiB
ArmAsm
;/***************************************************************************/
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; * @file startup_efm32pg1b.s for ARM-KEIL ARM assembler
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; * @brief CMSIS Cortex-M4F Core Device Startup File for EFM32-SLSTK3401A
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; * @version CMSIS 4.3.0
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; * @date 02 May 2016
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; *
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; * @description
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; * Created from the CMSIS template for the specified device
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; * Quantum Leaps, www.state-machine.com
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; *
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; * @note
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; * The symbols Stack_Size and Heap_Size should be provided on the command-
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; * line options to the assembler, for example as:
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; * --pd "Stack_Size SETA 512" --pd "Heap_Size SETA 0"
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; *
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; * @note
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; * The function assert_failed defined at the end of this file defines
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; * the error/assertion handling policy for the application and might
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; * need to be customized for each project. This function is defined in
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; * assembly to re-set the stack pointer, in case it is corrupted by the
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; * time assert_failed is called.
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; *
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; ***************************************************************************/
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;/* Copyright (c) 2012 ARM LIMITED
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;
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; All rights reserved.
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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 are met:
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; - 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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; - Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in the
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; documentation and/or other materials provided with the distribution.
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; - Neither the name of ARM nor the names of its contributors may be used
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; to endorse or promote products derived from this software without
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; specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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; ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
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; LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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; SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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; ARISING IN 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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; Allocate space for the stack.
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;
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;******************************************************************************
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AREA STACK, NOINIT, READWRITE, ALIGN=3
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__stack_base
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StackMem
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SPACE Stack_Size ; provided in command-line option, for example:
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; --pd "Stack_Size SETA 512"
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__stack_limit
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__initial_sp
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;******************************************************************************
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;
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; Allocate space for the heap.
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;
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;******************************************************************************
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AREA HEAP, NOINIT, READWRITE, ALIGN=3
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__heap_base
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HeapMem
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SPACE Heap_Size ; provided in command-line option, for example:
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; --pd "Heap_Size SETA 0"
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__heap_limit
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;******************************************************************************
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;
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; Indicate that the code in this file preserves 8-byte alignment of the stack.
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;
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;******************************************************************************
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PRESERVE8
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;******************************************************************************
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;
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; Place code into the reset code section.
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;
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;******************************************************************************
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AREA RESET, DATA, READONLY
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EXPORT __Vectors
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EXPORT __Vectors_End
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EXPORT __Vectors_Size
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;******************************************************************************
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;
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; The vector table.
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;
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;******************************************************************************
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__Vectors
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DCD __initial_sp ; Top of Stack
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DCD Reset_Handler ; Reset Handler
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DCD NMI_Handler ; NMI Handler
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DCD HardFault_Handler ; Hard Fault Handler
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DCD MemManage_Handler ; The MPU fault handler
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DCD BusFault_Handler ; The bus fault handler
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DCD UsageFault_Handler ; The usage fault handler
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD SVC_Handler ; SVCall handler
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DCD DebugMon_Handler ; Debug monitor handler
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DCD 0 ; Reserved
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DCD PendSV_Handler ; The PendSV handler
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DCD SysTick_Handler ; The SysTick handler
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; IRQ handlers...
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DCD EMU_IRQHandler ; 0 - EMU
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DCD Default_Handler ; 1 - Reserved
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DCD WDOG0_IRQHandler ; 2 - WDOG0
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DCD Default_Handler ; 3 - Reserved
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DCD Default_Handler ; 4 - Reserved
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DCD Default_Handler ; 5 - Reserved
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DCD Default_Handler ; 6 - Reserved
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DCD Default_Handler ; 7 - Reserved
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DCD LDMA_IRQHandler ; 8 - LDMA
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DCD GPIO_EVEN_IRQHandler ; 9 - GPIO_EVEN
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DCD TIMER0_IRQHandler ; 10 - TIMER0
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DCD USART0_RX_IRQHandler ; 11 - USART0_RX
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DCD USART0_TX_IRQHandler ; 12 - USART0_TX
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DCD ACMP0_IRQHandler ; 13 - ACMP0
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DCD ADC0_IRQHandler ; 14 - ADC0
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DCD IDAC0_IRQHandler ; 15 - IDAC0
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DCD I2C0_IRQHandler ; 16 - I2C0
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DCD GPIO_ODD_IRQHandler ; 17 - GPIO_ODD
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DCD TIMER1_IRQHandler ; 18 - TIMER1
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DCD USART1_RX_IRQHandler ; 19 - USART1_RX
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DCD USART1_TX_IRQHandler ; 20 - USART1_TX
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DCD LEUART0_IRQHandler ; 21 - LEUART0
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DCD PCNT0_IRQHandler ; 22 - PCNT0
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DCD CMU_IRQHandler ; 23 - CMU
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DCD MSC_IRQHandler ; 24 - MSC
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DCD CRYPTO_IRQHandler ; 25 - CRYPTO
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DCD LETIMER0_IRQHandler ; 26 - LETIMER0
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DCD Default_Handler ; 27 - Reserved
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DCD Default_Handler ; 28 - Reserved
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DCD RTCC_IRQHandler ; 29 - RTCC
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DCD Default_Handler ; 30 - Reserved
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DCD CRYOTIMER_IRQHandler ; 31 - CRYOTIMER
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DCD Default_Handler ; 32 - Reserved
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DCD FPUEH_IRQHandler ; 33 - FPUEH
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__Vectors_End
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__Vectors_Size EQU __Vectors_End - __Vectors
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;******************************************************************************
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;
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; This is the code for exception handlers.
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;
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;******************************************************************************
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AREA |.text|, CODE, READONLY
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;******************************************************************************
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;
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; This is the code that gets called when the processor first starts execution
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; following a reset event.
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;
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;******************************************************************************
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Reset_Handler PROC
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EXPORT Reset_Handler [WEAK]
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IMPORT SystemInit
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IMPORT __main
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LDR r0, =SystemInit ; CMSIS system initialization
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BLX r0
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; Call the C library enty point that handles startup. This will copy
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; the .data section initializers from flash to SRAM and zero fill the
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; .bss section.
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LDR r0, =__main
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BX r0
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; __main calls the main() function, which should not return,
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; but just in case jump to assert_failed() if main returns.
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MOVS r0,#0
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MOVS r1,#0 ; error number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The NMI handler
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;
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;******************************************************************************
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NMI_Handler PROC
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EXPORT NMI_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#2 ; NMI exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The Hard Fault handler
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;
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;******************************************************************************
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HardFault_Handler PROC
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EXPORT HardFault_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#3 ; HardFault exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The MPU fault handler
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;
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;******************************************************************************
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MemManage_Handler PROC
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EXPORT MemManage_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#4 ; MemManage exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The Bus Fault handler
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;
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;******************************************************************************
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BusFault_Handler PROC
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EXPORT BusFault_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#5 ; BusFault exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The Usage Fault handler
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;
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;******************************************************************************
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UsageFault_Handler PROC
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EXPORT UsageFault_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#6 ; UsageFault exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The SVC handler
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;
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;******************************************************************************
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SVC_Handler PROC
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EXPORT SVC_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#11 ; SVCall exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The Debug Monitor handler
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;
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;******************************************************************************
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DebugMon_Handler PROC
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EXPORT DebugMon_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#12 ; DebugMon exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The PendSV handler
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;
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;******************************************************************************
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PendSV_Handler PROC
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EXPORT PendSV_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#14 ; PendSV exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; The SysTick handler
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;
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;******************************************************************************
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SysTick_Handler PROC
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EXPORT SysTick_Handler [WEAK]
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MOVS r0,#0
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MOVS r1,#15 ; SysTick exception number
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B assert_failed
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ENDP
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;******************************************************************************
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;
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; Define Default_Handledr as dummy for all IRQ handlers
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;
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;******************************************************************************
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Default_Handler PROC
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EXPORT EMU_IRQHandler [WEAK]
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EXPORT WDOG0_IRQHandler [WEAK]
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EXPORT LDMA_IRQHandler [WEAK]
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EXPORT GPIO_EVEN_IRQHandler [WEAK]
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EXPORT TIMER0_IRQHandler [WEAK]
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EXPORT USART0_RX_IRQHandler [WEAK]
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EXPORT USART0_TX_IRQHandler [WEAK]
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EXPORT ACMP0_IRQHandler [WEAK]
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EXPORT ADC0_IRQHandler [WEAK]
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EXPORT IDAC0_IRQHandler [WEAK]
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EXPORT I2C0_IRQHandler [WEAK]
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EXPORT GPIO_ODD_IRQHandler [WEAK]
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EXPORT TIMER1_IRQHandler [WEAK]
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EXPORT USART1_RX_IRQHandler [WEAK]
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EXPORT USART1_TX_IRQHandler [WEAK]
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EXPORT LEUART0_IRQHandler [WEAK]
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EXPORT PCNT0_IRQHandler [WEAK]
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EXPORT CMU_IRQHandler [WEAK]
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EXPORT MSC_IRQHandler [WEAK]
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EXPORT CRYPTO_IRQHandler [WEAK]
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EXPORT LETIMER0_IRQHandler [WEAK]
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EXPORT RTCC_IRQHandler [WEAK]
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EXPORT CRYOTIMER_IRQHandler [WEAK]
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EXPORT FPUEH_IRQHandler [WEAK]
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EMU_IRQHandler
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WDOG0_IRQHandler
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LDMA_IRQHandler
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GPIO_EVEN_IRQHandler
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TIMER0_IRQHandler
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USART0_RX_IRQHandler
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USART0_TX_IRQHandler
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ACMP0_IRQHandler
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ADC0_IRQHandler
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IDAC0_IRQHandler
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I2C0_IRQHandler
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GPIO_ODD_IRQHandler
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TIMER1_IRQHandler
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USART1_RX_IRQHandler
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USART1_TX_IRQHandler
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LEUART0_IRQHandler
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PCNT0_IRQHandler
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CMU_IRQHandler
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MSC_IRQHandler
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CRYPTO_IRQHandler
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LETIMER0_IRQHandler
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RTCC_IRQHandler
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CRYOTIMER_IRQHandler
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FPUEH_IRQHandler
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MOVS r0,#0
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MOVS r1,#-1 ; 0xFFFFFFF
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B assert_failed
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ENDP
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ALIGN ; make sure the end of this section is aligned
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;******************************************************************************
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;
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; The function expected of the C library startup code for defining the stack
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; and heap memory locations. For the C library version of the startup code,
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; provide this function so that the C library initialization code can find out
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; the location of the stack and heap.
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;
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;******************************************************************************
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IF :DEF: __MICROLIB
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EXPORT __initial_sp
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EXPORT __stack_limit
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EXPORT __heap_base
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EXPORT __heap_limit
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ELSE
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IMPORT __use_two_region_memory
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EXPORT __user_initial_stackheap
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__user_initial_stackheap PROC
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LDR R0, =__heap_base
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LDR R1, =__stack_limit
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LDR R2, =__heap_limit
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LDR R3, =__stack_base
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BX LR
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ENDP
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ENDIF
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;******************************************************************************
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;
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; The function assert_failed defines the error/assertion handling policy
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; for the application. After making sure that the stack is OK, this function
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; calls Q_onAssert, which should NOT return (typically reset the CPU).
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;
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; NOTE: the function Q_onAssert should NOT return.
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;
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; The C proptotype of the assert_failed() and Q_onAssert() functions are:
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; void assert_failed(char const *file, int line);
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; void Q_onAssert (char const *file, int line);
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;******************************************************************************
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EXPORT assert_failed
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IMPORT Q_onAssert
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assert_failed PROC
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LDR sp,=__initial_sp ; re-set the SP in case of stack overflow
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BL Q_onAssert ; call the application-specific handler
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B . ; should not be reached, but just in case...
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ENDP
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ALIGN ; make sure the end of this section is aligned
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END ; end of module
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