160 lines
6.5 KiB
ArmAsm
160 lines
6.5 KiB
ArmAsm
.syntax unified
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.cpu cortex-m3
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.fpu softvfp
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.thumb
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.global g_pfnVectors
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.global Default_Handler
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/* start address for the initialization values of the .data section.
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defined in linker script */
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.word _sidata
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/* start address for the .data section. defined in linker script */
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.word _sdata
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/* end address for the .data section. defined in linker script */
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.word _edata
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/* start address for the .bss section. defined in linker script */
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.word _sbss
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/* end address for the .bss section. defined in linker script */
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.word _ebss
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/**
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* @brief This is the code that gets called when the processor first
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* starts execution following a reset event. Only the absolutely
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* necessary set is performed, after which the application
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* supplied main() routine is called.
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* @param None
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* @retval : None
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*/
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.section .text.Reset_Handler
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.weak Reset_Handler
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.type Reset_Handler, %function
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Reset_Handler:
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/* restore original stack pointer */
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ldr sp, =_estack /* set stack pointer */
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/* Copy the data segment initializers from flash to SRAM */
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movs r1, #0
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b LoopCopyDataInit
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CopyDataInit:
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ldr r3, =_sidata
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ldr r3, [r3, r1]
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str r3, [r0, r1]
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adds r1, r1, #4
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LoopCopyDataInit:
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ldr r0, =_sdata
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ldr r3, =_edata
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adds r2, r0, r1
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cmp r2, r3
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bcc CopyDataInit
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ldr r2, =_sbss
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b LoopFillZerobss
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/* Zero fill the bss segment. */
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FillZerobss:
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movs r3, #0
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str r3, [r2], #4
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LoopFillZerobss:
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ldr r3, = _ebss
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cmp r2, r3
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bcc FillZerobss
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/* Call the application's entry point.*/
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bl main
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bx lr
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.size Reset_Handler, .-Reset_Handler
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/**
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* @brief This is the code that gets called when the processor receives an
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* unexpected interrupt. This simply enters an infinite loop, preserving
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* the system state for examination by a debugger.
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*
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* @param None
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* @retval : None
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*/
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.section .text.Default_Handler,"ax",%progbits
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Default_Handler:
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Infinite_Loop:
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b Infinite_Loop
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.size Default_Handler, .-Default_Handler
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/******************************************************************************
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*
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* The minimal vector table for a Cortex M3. Note that the proper constructs
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* must be placed on this to ensure that it ends up at physical address
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* 0x0000.0000.
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*
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******************************************************************************/
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.section .isr_vector,"a",%progbits
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.type g_pfnVectors, %object
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.size g_pfnVectors, .-g_pfnVectors
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g_pfnVectors:
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.word _estack
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.word Reset_Handler
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.word Default_Handler //NMI_Handler
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.word HardFault_Handler
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.word Default_Handler //MemManage_Handler
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.word Default_Handler //BusFault_Handler
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.word Default_Handler //UsageFault_Handler
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.word 0
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.word 0
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.word 0
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.word 0
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.word Default_Handler //SVC_Handler
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.word Default_Handler //DebugMon_Handler
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.word 0
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.word PendSV_Handler
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.word rt_hw_timer_handler
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.word Default_Handler // GPIO Port A
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.word Default_Handler // GPIO Port B
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.word Default_Handler // GPIO Port C
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.word Default_Handler // GPIO Port D
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.word Default_Handler // GPIO Port E
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.word rt_hw_uart_isr_1 // UART0 Rx and Tx
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.word Default_Handler // UART1 Rx and Tx
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.word Default_Handler // SSI Rx and Tx
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.word Default_Handler // I2C Master and Slave
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.word Default_Handler // PWM Fault
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.word Default_Handler // PWM Generator 0
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.word Default_Handler // PWM Generator 1
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.word Default_Handler // PWM Generator 2
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.word Default_Handler // Quadrature Encoder
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.word Default_Handler // ADC Sequence 0
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.word Default_Handler // ADC Sequence 1
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.word Default_Handler // ADC Sequence 2
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.word Default_Handler // ADC Sequence 3
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.word Default_Handler // Watchdog timer
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.word Default_Handler // Timer 0 subtimer A
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.word Default_Handler // Timer 0 subtimer B
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.word Default_Handler // Timer 1 subtimer A
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.word Default_Handler // Timer 1 subtimer B
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.word Default_Handler // Timer 2 subtimer A
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.word Default_Handler // Timer 2 subtimer B
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.word Default_Handler // Analog Comparator 0
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.word Default_Handler // Analog Comparator 1
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.word Default_Handler // Analog Comparator 2
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.word Default_Handler // System Control (PLL, OSC,
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.word Default_Handler // FLASH Control
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.word Default_Handler // GPIO Port F
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.word Default_Handler // GPIO Port G
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.word Default_Handler // GPIO Port H
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.word Default_Handler // UART2 Rx and Tx
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.word Default_Handler // SSI1 Rx and Tx
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.word Default_Handler // Timer 3 subtimer A
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.word Default_Handler // Timer 3 subtimer B
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.word Default_Handler // I2C1 Master and Slave
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.word Default_Handler // Quadrature Encoder 1
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.word Default_Handler // CAN0
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.word Default_Handler // CAN1
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.word Default_Handler // CAN2
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.word luminaryif_isr // Ethernet
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.word Default_Handler // Hibernate
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.word Default_Handler // USB0
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.word Default_Handler // PWM Generator 3
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.word Default_Handler // uDMA Software Transfer
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.word Default_Handler // uDMA Error
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