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-/* File: startup_MK20D5.s
- * Purpose: startup file for Cortex-M4 devices. Should use with
- * GCC for ARM Embedded Processors
- * Version: V1.3
- * Date: 08 Feb 2012
- *
- * Copyright (c) 2012, ARM Limited
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- * Neither the name of the ARM Limited nor the
- names of its contributors may be used to endorse or promote products
- derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL ARM LIMITED BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- .syntax unified
- .arch armv7-m
-
- .section .stack
- .align 3
-#ifdef __STACK_SIZE
- .equ Stack_Size, __STACK_SIZE
-#else
- .equ Stack_Size, 0x400
-#endif
- .globl __StackTop
- .globl __StackLimit
-__StackLimit:
- .space Stack_Size
- .size __StackLimit, . - __StackLimit
-__StackTop:
- .size __StackTop, . - __StackTop
-
- .section .heap
- .align 3
-#ifdef __HEAP_SIZE
- .equ Heap_Size, __HEAP_SIZE
-#else
- .equ Heap_Size, 0xC00
-#endif
- .globl __HeapBase
- .globl __HeapLimit
-__HeapBase:
- .if Heap_Size
- .space Heap_Size
- .endif
- .size __HeapBase, . - __HeapBase
-__HeapLimit:
- .size __HeapLimit, . - __HeapLimit
-
- .section .isr_vector
- .align 2
- .globl __isr_vector
-__isr_vector:
- .long __StackTop /* Top of Stack */
- .long Reset_Handler /* Reset Handler */
- .long NMI_Handler /* NMI Handler */
- .long HardFault_Handler /* Hard Fault Handler */
- .long MemManage_Handler /* MPU Fault Handler */
- .long BusFault_Handler /* Bus Fault Handler */
- .long UsageFault_Handler /* Usage Fault Handler */
- .long 0 /* Reserved */
- .long 0 /* Reserved */
- .long 0 /* Reserved */
- .long 0 /* Reserved */
- .long SVC_Handler /* SVCall Handler */
- .long DebugMon_Handler /* Debug Monitor Handler */
- .long 0 /* Reserved */
- .long PendSV_Handler /* PendSV Handler */
- .long SysTick_Handler /* SysTick Handler */
-
- /* External interrupts */
- .long DMA0_IRQHandler /* 0: Watchdog Timer */
- .long DMA1_IRQHandler /* 1: Real Time Clock */
- .long DMA2_IRQHandler /* 2: Timer0 / Timer1 */
- .long DMA3_IRQHandler /* 3: Timer2 / Timer3 */
- .long DMA_Error_IRQHandler /* 4: MCIa */
- .long 0 /* 5: MCIb */
- .long FTFL_IRQHandler /* 6: UART0 - DUT FPGA */
- .long Read_Collision_IRQHandler /* 7: UART1 - DUT FPGA */
- .long LVD_LVW_IRQHandler /* 8: UART2 - DUT FPGA */
- .long LLW_IRQHandler /* 9: UART4 - not connected */
- .long Watchdog_IRQHandler /* 10: AACI / AC97 */
- .long I2C0_IRQHandler /* 11: CLCD Combined Interrupt */
- .long SPI0_IRQHandler /* 12: Ethernet */
- .long I2S0_Tx_IRQHandler /* 13: USB Device */
- .long I2S0_Rx_IRQHandler /* 14: USB Host Controller */
- .long UART0_LON_IRQHandler /* 15: Character LCD */
- .long UART0_RX_TX_IRQHandler /* 16: Flexray */
- .long UART0_ERR_IRQHandler /* 17: CAN */
- .long UART1_RX_TX_IRQHandler /* 18: LIN */
- .long UART1_ERR_IRQHandler /* 19: I2C ADC/DAC */
- .long UART2_RX_TX_IRQHandler /* 20: Reserved */
- .long UART2_ERR_IRQHandler /* 21: Reserved */
- .long ADC0_IRQHandler /* 22: Reserved */
- .long CMP0_IRQHandler /* 23: Reserved */
- .long CMP1_IRQHandler /* 24: Reserved */
- .long FTM0_IRQHandler /* 25: Reserved */
- .long FTM1_IRQHandler /* 26: Reserved */
- .long CMT_IRQHandler /* 27: Reserved */
- .long RTC_IRQHandler /* 28: Reserved - CPU FPGA CLCD */
- .long RTC_Seconds_IRQHandler /* 29: Reserved - CPU FPGA */
- .long PIT0_IRQHandler /* 30: UART3 - CPU FPGA */
- .long PIT1_IRQHandler /* 31: SPI Touchscreen - CPU FPGA */
- .long PIT2_IRQHandler
- .long PIT3_IRQHandler
- .long PDB0_IRQHandler
- .long USB0_IRQHandler
- .long USBDCD_IRQHandler
- .long TSI0_IRQHandler
- .long MCG_IRQHandler
- .long LPTimer_IRQHandler
- .long PORTA_IRQHandler
- .long PORTB_IRQHandler
- .long PORTC_IRQHandler
- .long PORTD_IRQHandler
- .long PORTE_IRQHandler
- .long SWI_IRQHandler
- .size __isr_vector, . - __isr_vector
-
- .section .text.Reset_Handler
- .thumb
- .thumb_func
- .align 2
- .globl Reset_Handler
- .type Reset_Handler, %function
-Reset_Handler:
-/* Loop to copy data from read only memory to RAM. The ranges
- * of copy from/to are specified by following symbols evaluated in
- * linker script.
- * __etext: End of code section, i.e., begin of data sections to copy from.
- * __data_start__/__data_end__: RAM address range that data should be
- * copied to. Both must be aligned to 4 bytes boundary. */
- ldr r0, =SystemInit
- blx r0
-
- ldr r1, =__etext
- ldr r2, =__data_start__
- ldr r3, =__data_end__
-
-.Lflash_to_ram_loop:
- cmp r2, r3
- ittt lt
- ldrlt r0, [r1], #4
- strlt r0, [r2], #4
- blt .Lflash_to_ram_loop
-
-.Lflash_to_ram_loop_end:
-
- ldr r0, =_start
- bx r0
- .pool
- .size Reset_Handler, . - Reset_Handler
-
- .text
-/* Macro to define default handlers. Default handler
- * will be weak symbol and just dead loops. They can be
- * overwritten by other handlers */
- .macro def_default_handler handler_name
- .align 1
- .thumb_func
- .weak \handler_name
- .type \handler_name, %function
-\handler_name :
- b .
- .size \handler_name, . - \handler_name
- .endm
-
- def_default_handler NMI_Handler
- def_default_handler HardFault_Handler
- def_default_handler MemManage_Handler
- def_default_handler BusFault_Handler
- def_default_handler UsageFault_Handler
- def_default_handler SVC_Handler
- def_default_handler DebugMon_Handler
- def_default_handler PendSV_Handler
- def_default_handler SysTick_Handler
- def_default_handler Default_Handler
-
- .macro def_irq_default_handler handler_name
- .weak \handler_name
- .set \handler_name, Default_Handler
- .endm
-
- def_irq_default_handler DMA0_IRQHandler
- def_irq_default_handler DMA1_IRQHandler
- def_irq_default_handler DMA2_IRQHandler
- def_irq_default_handler DMA3_IRQHandler
- def_irq_default_handler DMA_Error_IRQHandler
- def_irq_default_handler FTFL_IRQHandler
- def_irq_default_handler Read_Collision_IRQHandler
- def_irq_default_handler LVD_LVW_IRQHandler
- def_irq_default_handler LLW_IRQHandler
- def_irq_default_handler Watchdog_IRQHandler
- def_irq_default_handler I2C0_IRQHandler
- def_irq_default_handler SPI0_IRQHandler
- def_irq_default_handler I2S0_Tx_IRQHandler
- def_irq_default_handler I2S0_Rx_IRQHandler
- def_irq_default_handler UART0_LON_IRQHandler
- def_irq_default_handler UART0_RX_TX_IRQHandler
- def_irq_default_handler UART0_ERR_IRQHandler
- def_irq_default_handler UART1_RX_TX_IRQHandler
- def_irq_default_handler UART1_ERR_IRQHandler
- def_irq_default_handler UART2_RX_TX_IRQHandler
- def_irq_default_handler UART2_ERR_IRQHandler
- def_irq_default_handler ADC0_IRQHandler
- def_irq_default_handler CMP0_IRQHandler
- def_irq_default_handler CMP1_IRQHandler
- def_irq_default_handler FTM0_IRQHandler
- def_irq_default_handler FTM1_IRQHandler
- def_irq_default_handler CMT_IRQHandler
- def_irq_default_handler RTC_IRQHandler
- def_irq_default_handler RTC_Seconds_IRQHandler
- def_irq_default_handler PIT0_IRQHandler
- def_irq_default_handler PIT1_IRQHandler
- def_irq_default_handler PIT2_IRQHandler
- def_irq_default_handler PIT3_IRQHandler
- def_irq_default_handler PDB0_IRQHandler
- def_irq_default_handler USB0_IRQHandler
- def_irq_default_handler USBDCD_IRQHandler
- def_irq_default_handler TSI0_IRQHandler
- def_irq_default_handler MCG_IRQHandler
- def_irq_default_handler LPTimer_IRQHandler
- def_irq_default_handler PORTA_IRQHandler
- def_irq_default_handler PORTB_IRQHandler
- def_irq_default_handler PORTC_IRQHandler
- def_irq_default_handler PORTD_IRQHandler
- def_irq_default_handler PORTE_IRQHandler
- def_irq_default_handler SWI_IRQHandler
- def_irq_default_handler DEF_IRQHandler
-
-/* Flash protection region, placed at 0x400 */
- .text
- .thumb
- .align 2
- .section .kinetis_flash_config_field,"a",%progbits
-kinetis_flash_config:
- .long 0xffffffff
- .long 0xffffffff
- .long 0xffffffff
- .long 0xfffffffe
-
- .end