hm
b49c9ab0c6
完整实现了以下模块： - 系统数据总线(sys_data_bus)模块间通信 - UART/USART/LPUART驱动 + RS485半双工 - I2C驱动(AS5600角度传感器 + AT24C02 EEPROM) - Modbus RTU从站协议 - 步进电机微步进控制(正弦/余弦换相+S曲线加减速) - 到位开关驱动(DI_MIN/DI_MAX) - PGA+ADC电流检测 - 系统监控任务(内存/串口/传感器/任务状态) - LED/Key外设驱动 - 基于CMake + arm-none-eabi-gcc构建系统
262 lines
4.1 KiB
ArmAsm
262 lines
4.1 KiB
ArmAsm
.syntax unified
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.cpu cortex-m0plus
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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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.word _sidata
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.word _sdata
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.word _edata
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.word _sbss
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.word _ebss
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.equ BootRAM, 0xF108F85F
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.macro def_irq_handler handler_name
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.weak \handler_name
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.set \handler_name, Default_Handler
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.endm
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.section .text.Default_Handler,"ax",%progbits
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Default_Handler:
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b Default_Handler
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.section .text.Reset_Handler,"ax",%progbits
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.global Reset_Handler
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Reset_Handler:
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ldr r0, =_estack
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mov sp, r0
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ldr r1, =_sbss
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ldr r2, =_ebss
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movs r3, #0
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b FillZeroLoop
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FillZero:
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str r3, [r1]
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adds r1, r1, #4
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FillZeroLoop:
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cmp r1, r2
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bcc FillZero
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ldr r0, =_sidata
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ldr r1, =_sdata
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ldr r2, =_edata
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b CopyDataLoop
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CopyData:
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ldr r3, [r0]
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str r3, [r1]
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adds r0, r0, #4
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adds r1, r1, #4
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CopyDataLoop:
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cmp r1, r2
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bcc CopyData
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bl SystemInit
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bl main
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LoopForever:
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b LoopForever
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def_irq_handler NMI_Handler
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def_irq_handler HardFault_Handler
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def_irq_handler SVCall_Handler
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def_irq_handler PendSV_Handler
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def_irq_handler SysTick_Handler
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def_irq_handler WWDG_IRQHandler
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def_irq_handler RCC_IRQHandler
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def_irq_handler EXTI0_1_IRQHandler
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def_irq_handler EXTI2_3_IRQHandler
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def_irq_handler EXTI4_15_IRQHandler
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def_irq_handler DMA1_Ch1_IRQHandler
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def_irq_handler DMA1_Ch2_3_IRQHandler
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def_irq_handler DMA1_Ch4_5_IRQHandler
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def_irq_handler ADC1_IRQHandler
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def_irq_handler TIM1_BRK_IRQHandler
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def_irq_handler TIM1_UP_IRQHandler
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def_irq_handler TIM1_TRG_LVL_IRQHandler
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def_irq_handler TIM1_CC_IRQHandler
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def_irq_handler TIM3_IRQHandler
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def_irq_handler TIM14_IRQHandler
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def_irq_handler TIM16_IRQHandler
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def_irq_handler TIM17_IRQHandler
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def_irq_handler I2C1_IRQHandler
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def_irq_handler SPI1_IRQHandler
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def_irq_handler USART1_IRQHandler
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def_irq_handler UART1_IRQHandler
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def_irq_handler LPUART1_IRQHandler
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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 NMI_Handler
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.word HardFault_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 0
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.word 0
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.word 0
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.word SVCall_Handler
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.word 0
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.word 0
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.word PendSV_Handler
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.word SysTick_Handler
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.word WWDG_IRQHandler
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.word RCC_IRQHandler
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.word EXTI0_1_IRQHandler
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.word EXTI2_3_IRQHandler
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.word EXTI4_15_IRQHandler
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.word 0
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.word 0
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.word DMA1_Ch1_IRQHandler
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.word DMA1_Ch2_3_IRQHandler
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.word DMA1_Ch4_5_IRQHandler
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.word ADC1_IRQHandler
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.word TIM1_BRK_IRQHandler
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.word TIM1_UP_IRQHandler
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.word TIM1_TRG_LVL_IRQHandler
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.word TIM1_CC_IRQHandler
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.word TIM3_IRQHandler
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.word 0
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.word TIM14_IRQHandler
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.word 0
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.word TIM16_IRQHandler
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.word TIM17_IRQHandler
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.word I2C1_IRQHandler
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.word SPI1_IRQHandler
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.word USART1_IRQHandler
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.word 0
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.word 0
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.word UART1_IRQHandler
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.word LPUART1_IRQHandler
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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 0
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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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