为什么在RTT中跑PWM，比裸机慢9倍？(问题已解决,请看16楼)
本帖最后由 小笨蛋 于 2013-4-7 11:27 编辑我裸机跑PWM，不分频是72KHzTIM_TimeBaseStructure.TIM_Period = 999; //当定时器从0计数到999，即为1000次，为一个定时周期
TIM_TimeBaseStructure.TIM_Prescaler = 0; //设置预分频：不预分频，即为36MHz
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分频系数：不分频
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//向上计数模式相同的代码在RTThread中跑，频率只有8KHz，有没有人遇到这种情况啊？这是为什么呢？ 你这么一问，好像问题还是rtt的了。其实rtt很无辜 。。。。36M，PWM如何跑上72K的{:sweat:}
难道你的STM32计数器是带倍频器的{:dizzy:} 时钟设置问题吧。。。。。。。与系统无关 本帖最后由 小笨蛋 于 2013-4-6 19:05 编辑
Soul.art 发表于 2013-4-6 18:28 static/image/common/back.gif
。。。。36M，PWM如何跑上72K的
难道你的STM32计数器是带倍频器的 ...
不知道啊！！我是用示波器量的···是不是TIM3是36M的。TIM8是72M的？ 本帖最后由 小笨蛋 于 2013-4-6 19:03 编辑
canopen 发表于 2013-4-6 18:28 static/image/common/back.gif
时钟设置问题吧。。。。。。。与系统无关
我发现问题出现在start_rvds.s这个文件上。但是不知道怎么去改。我换成库里面的启动文件就可以，但是RTThread线程运行不起来 你RTT的时钟初始化问题？ ap0705307 发表于 2013-4-6 18:57 static/image/common/back.gif
你RTT的时钟初始化问题？
现在问题一定出现在start_rvds.s这个启动文件上，可惜里面全是汇编，看不懂。我一会去上自习了，回来我把它和库里面的启动文件对比，应该是能够锁定问题的。 Soul.art 发表于 2013-4-6 18:28 static/image/common/back.gif
。。。。36M，PWM如何跑上72K的
难道你的STM32计数器是带倍频器的 ...
stm32定时器真的有倍频 只能 说： 呵呵了。 仿真起来直接看寄存器啊。。。 T1，T8和其他的Tn好像不一样，不记得了，自己看手册去吧 error_dan 发表于 2013-4-6 20:15 static/image/common/back.gif
仿真起来直接看寄存器啊。。。
寄存器不熟悉……不知道哪些寄存器影响了这个…… 小笨蛋 发表于 2013-4-7 07:46 static/image/common/back.gif
寄存器不熟悉……不知道哪些寄存器影响了这个……
看手册 着脸张图已经说明问题了，但是还没找到原因
; /*
; * File : start_rvds.s
; * This file is part of RT-Thread RTOS
; * COPYRIGHT (C) 2009, RT-Thread Development Team
; *
; * The license and distribution terms for this file may be
; * found in the file LICENSE in this distribution or at
; * http://www.rt-thread.org/license/LICENSE
; *
; * Change Logs:
; * Date Author Notes
; * 2009-09-23 Bernard first implementation
; */
;* <<< Use Configuration Wizard in Context Menu >>>
; Amount of memory (in bytes) allocated for Stack
; Tailor this value to your application needs
; <h> Stack Configuration
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
Stack_Size EQU 0x00000400
AREA STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem SPACE Stack_Size
__initial_sp
; not use external SRAM as data memory
; <h> Heap Configuration
; <o>Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
Heap_Size EQU 0x00000000
AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit
PRESERVE8
THUMB
; IMPORTrt_hw_hard_fault
; IMPORTrt_hw_pend_sv
; IMPORTrt_hw_timer_handler
; Vector Table Mapped to Address 0 at Reset
AREA RESET, DATA, READONLY
EXPORT__Vectors
EXPORT__Vectors_End
EXPORT__Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack
DCD Reset_Handler ; Reset Handler
DCD NMI_Handler ; NMI Handler
; DCD rt_hw_hard_fault ; Hard Fault Handler
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler
DCD UsageFault_Handler ; Usage Fault Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD SVC_Handler ; SVCall Handler
DCD DebugMon_Handler ; Debug Monitor Handler
DCD 0 ; Reserved
; DCD rt_hw_pend_sv ; PendSV Handler in RT-Thread
; DCD rt_hw_timer_handler ; SysTick Handler in RT-Thread
; External Interrupts
DCD WWDG_IRQHandler ; Window Watchdog
DCD PVD_IRQHandler ; PVD through EXTI Line detect
DCD TAMPER_IRQHandler ; Tamper
DCD RTC_IRQHandler ; RTC
DCD FLASH_IRQHandler ; Flash
DCD RCC_IRQHandler ; RCC
DCD EXTI0_IRQHandler ; EXTI Line 0
DCD EXTI1_IRQHandler ; EXTI Line 1
DCD EXTI2_IRQHandler ; EXTI Line 2
DCD EXTI3_IRQHandler ; EXTI Line 3
DCD EXTI4_IRQHandler ; EXTI Line 4
DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
DCD DMA1_Channel2_IRQHandler ; DMA1 Channel 2
DCD DMA1_Channel3_IRQHandler ; DMA1 Channel 3
DCD DMA1_Channel4_IRQHandler ; DMA1 Channel 4
DCD DMA1_Channel5_IRQHandler ; DMA1 Channel 5
DCD DMA1_Channel6_IRQHandler ; DMA1 Channel 6
DCD DMA1_Channel7_IRQHandler ; DMA1 Channel 7
DCD ADC1_2_IRQHandler ; ADC1 and ADC2
DCD USB_HP_CAN1_TX_IRQHandler; USB High Priority or CAN1 TX
DCD USB_LP_CAN1_RX0_IRQHandler ; USB LowPriority or CAN1 RX0
DCD CAN1_RX1_IRQHandler ; CAN1 RX1
DCD CAN1_SCE_IRQHandler ; CAN1 SCE
DCD EXTI9_5_IRQHandler ; EXTI Line 9..5
DCD TIM1_BRK_IRQHandler ; TIM1 Break
DCD TIM1_UP_IRQHandler ; TIM1 Update
DCD TIM1_TRG_COM_IRQHandler ; TIM1 Trigger and Commutation
DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
DCD TIM2_IRQHandler ; TIM2
DCD TIM3_IRQHandler ; TIM3
DCD TIM4_IRQHandler ; TIM4
DCD I2C1_EV_IRQHandler ; I2C1 Event
DCD I2C1_ER_IRQHandler ; I2C1 Error
DCD I2C2_EV_IRQHandler ; I2C2 Event
DCD I2C2_ER_IRQHandler ; I2C2 Error
DCD SPI1_IRQHandler ; SPI1
DCD SPI2_IRQHandler ; SPI2
DCD USART1_IRQHandler ; USART1
DCD USART2_IRQHandler ; USART2
DCD USART3_IRQHandler ; USART3
DCD EXTI15_10_IRQHandler ; EXTI Line 15..10
DCD RTCAlarm_IRQHandler ; RTC Alarm through EXTI Line
DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line
DCD TIM8_BRK_IRQHandler ; TIM8 Break
DCD TIM8_UP_IRQHandler ; TIM8 Update
DCD TIM8_TRG_COM_IRQHandler ; TIM8 Trigger and Commutation
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare
DCD ADC3_IRQHandler ; ADC3
DCD FSMC_IRQHandler ; FSMC
DCD SDIO_IRQHandler ; SDIO
DCD TIM5_IRQHandler ; TIM5
DCD SPI3_IRQHandler ; SPI3
DCD UART4_IRQHandler ; UART4
DCD UART5_IRQHandler ; UART5
DCD TIM6_IRQHandler ; TIM6
DCD TIM7_IRQHandler ; TIM7
DCD DMA2_Channel1_IRQHandler ; DMA2 Channel1
DCD DMA2_Channel2_IRQHandler ; DMA2 Channel2
DCD DMA2_Channel3_IRQHandler ; DMA2 Channel3
DCD DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 and Channel5
; for STM32F10x Connectivity line devices
DCD DMA2_Channel5_IRQHandler ; DMA2 Channel5
DCD ETH_IRQHandler ; Ethernet
DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line
DCD CAN2_TX_IRQHandler ; CAN2 TX
DCD CAN2_RX0_IRQHandler ; CAN2 RX0
DCD CAN2_RX1_IRQHandler ; CAN2 RX1
DCD CAN2_SCE_IRQHandler ; CAN2 SCE
DCD OTG_FS_IRQHandler ; USB OTG FS
__Vectors_End
__Vectors_Size EQU __Vectors_End - __Vectors
AREA |.text|, CODE, READONLY
; Reset handler routine
Reset_Handler PROC
EXPORTReset_Handler
IMPORT__main
LDR R1, = __initial_sp ; restore original stack pointer
MSR MSP, R1
LDR R0, =__main
BX R0
ENDP
; Dummy Exception Handlers (infinite loops which can be modified)
NMI_Handler PROC
EXPORTNMI_Handler
B .
ENDP
HardFault_Handler\
PROC
EXPORTHardFault_Handler
B .
ENDP
MemManage_Handler\
PROC
EXPORTMemManage_Handler
B .
ENDP
BusFault_Handler\
PROC
EXPORTBusFault_Handler
B .
ENDP
UsageFault_Handler\
PROC
EXPORTUsageFault_Handler
B .
ENDP
SVC_Handler PROC
EXPORTSVC_Handler
B .
ENDP
DebugMon_Handler\
PROC
EXPORTDebugMon_Handler
B .
ENDP
Default_Handler PROC
EXPORTWWDG_IRQHandler
EXPORTPVD_IRQHandler
EXPORTTAMPER_IRQHandler
EXPORTRTC_IRQHandler
EXPORTFLASH_IRQHandler
EXPORTRCC_IRQHandler
EXPORTEXTI0_IRQHandler
EXPORTEXTI1_IRQHandler
EXPORTEXTI2_IRQHandler
EXPORTEXTI3_IRQHandler
EXPORTEXTI4_IRQHandler
EXPORTDMA1_Channel1_IRQHandler
EXPORTDMA1_Channel2_IRQHandler
EXPORTDMA1_Channel3_IRQHandler
EXPORTDMA1_Channel4_IRQHandler
EXPORTDMA1_Channel5_IRQHandler
EXPORTDMA1_Channel6_IRQHandler
EXPORTDMA1_Channel7_IRQHandler
EXPORTADC1_2_IRQHandler
EXPORTUSB_HP_CAN1_TX_IRQHandler
EXPORTUSB_LP_CAN1_RX0_IRQHandler
EXPORTCAN1_RX1_IRQHandler
EXPORTCAN1_SCE_IRQHandler
EXPORTEXTI9_5_IRQHandler
EXPORTTIM1_BRK_IRQHandler
EXPORTTIM1_UP_IRQHandler
EXPORTTIM1_TRG_COM_IRQHandler
EXPORTTIM1_CC_IRQHandler
EXPORTTIM2_IRQHandler
EXPORTTIM3_IRQHandler
EXPORTTIM4_IRQHandler
EXPORTI2C1_EV_IRQHandler
EXPORTI2C1_ER_IRQHandler
EXPORTI2C2_EV_IRQHandler
EXPORTI2C2_ER_IRQHandler
EXPORTSPI1_IRQHandler
EXPORTSPI2_IRQHandler
EXPORTUSART1_IRQHandler
EXPORTUSART2_IRQHandler
EXPORTUSART3_IRQHandler
EXPORTEXTI15_10_IRQHandler
EXPORTRTCAlarm_IRQHandler
EXPORTOTG_FS_WKUP_IRQHandler
EXPORTTIM8_BRK_IRQHandler
EXPORTTIM8_UP_IRQHandler
EXPORTTIM8_TRG_COM_IRQHandler
EXPORTTIM8_CC_IRQHandler
EXPORTADC3_IRQHandler
EXPORTFSMC_IRQHandler
EXPORTSDIO_IRQHandler
EXPORTTIM5_IRQHandler
EXPORTSPI3_IRQHandler
EXPORTUART4_IRQHandler
EXPORTUART5_IRQHandler
EXPORTTIM6_IRQHandler
EXPORTTIM7_IRQHandler
EXPORTDMA2_Channel1_IRQHandler
EXPORTDMA2_Channel2_IRQHandler
EXPORTDMA2_Channel3_IRQHandler
EXPORTDMA2_Channel4_5_IRQHandler
; for STM32F10x Connectivity line devices
EXPORTDMA2_Channel5_IRQHandler
EXPORTETH_IRQHandler
EXPORTETH_WKUP_IRQHandler
EXPORTCAN2_TX_IRQHandler
EXPORTCAN2_RX0_IRQHandler
EXPORTCAN2_RX1_IRQHandler
EXPORTCAN2_SCE_IRQHandler
EXPORTOTG_FS_IRQHandler
WWDG_IRQHandler
PVD_IRQHandler
TAMPER_IRQHandler
RTC_IRQHandler
FLASH_IRQHandler
RCC_IRQHandler
EXTI0_IRQHandler
EXTI1_IRQHandler
EXTI2_IRQHandler
EXTI3_IRQHandler
EXTI4_IRQHandler
DMA1_Channel1_IRQHandler
DMA1_Channel2_IRQHandler
DMA1_Channel3_IRQHandler
DMA1_Channel4_IRQHandler
DMA1_Channel5_IRQHandler
DMA1_Channel6_IRQHandler
DMA1_Channel7_IRQHandler
ADC1_2_IRQHandler
USB_HP_CAN1_TX_IRQHandler
USB_LP_CAN1_RX0_IRQHandler
CAN1_RX1_IRQHandler
CAN1_SCE_IRQHandler
EXTI9_5_IRQHandler
TIM1_BRK_IRQHandler
TIM1_UP_IRQHandler
TIM1_TRG_COM_IRQHandler
TIM1_CC_IRQHandler
TIM2_IRQHandler
TIM3_IRQHandler
TIM4_IRQHandler
I2C1_EV_IRQHandler
I2C1_ER_IRQHandler
I2C2_EV_IRQHandler
I2C2_ER_IRQHandler
SPI1_IRQHandler
SPI2_IRQHandler
USART1_IRQHandler
USART2_IRQHandler
USART3_IRQHandler
EXTI15_10_IRQHandler
RTCAlarm_IRQHandler
OTG_FS_WKUP_IRQHandler
TIM8_BRK_IRQHandler
TIM8_UP_IRQHandler
TIM8_TRG_COM_IRQHandler
TIM8_CC_IRQHandler
ADC3_IRQHandler
FSMC_IRQHandler
SDIO_IRQHandler
TIM5_IRQHandler
SPI3_IRQHandler
UART4_IRQHandler
UART5_IRQHandler
TIM6_IRQHandler
TIM7_IRQHandler
DMA2_Channel1_IRQHandler
DMA2_Channel2_IRQHandler
DMA2_Channel3_IRQHandler
DMA2_Channel4_5_IRQHandler
; for STM32F10x Connectivity line devices
DMA2_Channel5_IRQHandler
ETH_IRQHandler
ETH_WKUP_IRQHandler
CAN2_TX_IRQHandler
CAN2_RX0_IRQHandler
CAN2_RX1_IRQHandler
CAN2_SCE_IRQHandler
OTG_FS_IRQHandler
B .
ENDP
ALIGN
;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************
IF :DEF:__MICROLIB
EXPORT__initial_sp
EXPORT__heap_base
EXPORT__heap_limit
ELSE
IMPORT__use_two_region_memory
EXPORT__user_initial_stackheap
__user_initial_stackheap
LDR R0, =Heap_Mem
LDR R1, =(Stack_Mem + Stack_Size)
LDR R2, = (Heap_Mem +Heap_Size)
LDR R3, = Stack_Mem
BX LR
ALIGN
ENDIF
END
;******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE*****
;******************** (C) COPYRIGHT 2011 STMicroelectronics ********************
;* File Name : startup_stm32f10x_hd.s
;* Author : MCD Application Team
;* Version : V3.5.0
;* Date : 11-March-2011
;* Description : STM32F10x High Density Devices vector table for MDK-ARM
;* toolchain.
;* This module performs:
;* - Set the initial SP
;* - Set the initial PC == Reset_Handler
;* - Set the vector table entries with the exceptions ISR address
;* - Configure the clock system and also configure the external
;* SRAM mounted on STM3210E-EVAL board to be used as data
;* memory (optional, to be enabled by user)
;* - Branches to __main in the C library (which eventually
;* calls main()).
;* After Reset the CortexM3 processor is in Thread mode,
;* priority is Privileged, and the Stack is set to Main.
;* <<< Use Configuration Wizard in Context Menu >>>
;*******************************************************************************
; THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
; WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
; INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
; CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
; INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
;*******************************************************************************
; Amount of memory (in bytes) allocated for Stack
; Tailor this value to your application needs
; <h> Stack Configuration
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
Stack_Size EQU 0x00000400
AREA STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem SPACE Stack_Size
__initial_sp
; <h> Heap Configuration
; <o>Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
Heap_Size EQU 0x00000200
AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit
PRESERVE8
THUMB
; Vector Table Mapped to Address 0 at Reset
AREA RESET, DATA, READONLY
EXPORT__Vectors
EXPORT__Vectors_End
EXPORT__Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack
DCD Reset_Handler ; Reset Handler
DCD NMI_Handler ; NMI Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler
DCD UsageFault_Handler ; Usage Fault Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD SVC_Handler ; SVCall Handler
DCD DebugMon_Handler ; Debug Monitor Handler
DCD 0 ; Reserved
DCD PendSV_Handler ; PendSV Handler
DCD SysTick_Handler ; SysTick Handler
; External Interrupts
DCD WWDG_IRQHandler ; Window Watchdog
DCD PVD_IRQHandler ; PVD through EXTI Line detect
DCD TAMPER_IRQHandler ; Tamper
DCD RTC_IRQHandler ; RTC
DCD FLASH_IRQHandler ; Flash
DCD RCC_IRQHandler ; RCC
DCD EXTI0_IRQHandler ; EXTI Line 0
DCD EXTI1_IRQHandler ; EXTI Line 1
DCD EXTI2_IRQHandler ; EXTI Line 2
DCD EXTI3_IRQHandler ; EXTI Line 3
DCD EXTI4_IRQHandler ; EXTI Line 4
DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
DCD DMA1_Channel2_IRQHandler ; DMA1 Channel 2
DCD DMA1_Channel3_IRQHandler ; DMA1 Channel 3
DCD DMA1_Channel4_IRQHandler ; DMA1 Channel 4
DCD DMA1_Channel5_IRQHandler ; DMA1 Channel 5
DCD DMA1_Channel6_IRQHandler ; DMA1 Channel 6
DCD DMA1_Channel7_IRQHandler ; DMA1 Channel 7
DCD ADC1_2_IRQHandler ; ADC1 & ADC2
DCD USB_HP_CAN1_TX_IRQHandler; USB High Priority or CAN1 TX
DCD USB_LP_CAN1_RX0_IRQHandler ; USB LowPriority or CAN1 RX0
DCD CAN1_RX1_IRQHandler ; CAN1 RX1
DCD CAN1_SCE_IRQHandler ; CAN1 SCE
DCD EXTI9_5_IRQHandler ; EXTI Line 9..5
DCD TIM1_BRK_IRQHandler ; TIM1 Break
DCD TIM1_UP_IRQHandler ; TIM1 Update
DCD TIM1_TRG_COM_IRQHandler ; TIM1 Trigger and Commutation
DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
DCD TIM2_IRQHandler ; TIM2
DCD TIM3_IRQHandler ; TIM3
DCD TIM4_IRQHandler ; TIM4
DCD I2C1_EV_IRQHandler ; I2C1 Event
DCD I2C1_ER_IRQHandler ; I2C1 Error
DCD I2C2_EV_IRQHandler ; I2C2 Event
DCD I2C2_ER_IRQHandler ; I2C2 Error
DCD SPI1_IRQHandler ; SPI1
DCD SPI2_IRQHandler ; SPI2
DCD USART1_IRQHandler ; USART1
DCD USART2_IRQHandler ; USART2
DCD USART3_IRQHandler ; USART3
DCD EXTI15_10_IRQHandler ; EXTI Line 15..10
DCD RTCAlarm_IRQHandler ; RTC Alarm through EXTI Line
DCD USBWakeUp_IRQHandler ; USB Wakeup from suspend
DCD TIM8_BRK_IRQHandler ; TIM8 Break
DCD TIM8_UP_IRQHandler ; TIM8 Update
DCD TIM8_TRG_COM_IRQHandler ; TIM8 Trigger and Commutation
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare
DCD ADC3_IRQHandler ; ADC3
DCD FSMC_IRQHandler ; FSMC
DCD SDIO_IRQHandler ; SDIO
DCD TIM5_IRQHandler ; TIM5
DCD SPI3_IRQHandler ; SPI3
DCD UART4_IRQHandler ; UART4
DCD UART5_IRQHandler ; UART5
DCD TIM6_IRQHandler ; TIM6
DCD TIM7_IRQHandler ; TIM7
DCD DMA2_Channel1_IRQHandler ; DMA2 Channel1
DCD DMA2_Channel2_IRQHandler ; DMA2 Channel2
DCD DMA2_Channel3_IRQHandler ; DMA2 Channel3
DCD DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 & Channel5
__Vectors_End
__Vectors_SizeEQU__Vectors_End - __Vectors
AREA |.text|, CODE, READONLY
; Reset handler
Reset_Handler PROC
EXPORTReset_Handler
IMPORT__main
IMPORTSystemInit
LDR R0, =SystemInit
BLX R0
LDR R0, =__main
BX R0
ENDP
; Dummy Exception Handlers (infinite loops which can be modified)
NMI_Handler PROC
EXPORTNMI_Handler
B .
ENDP
HardFault_Handler\
PROC
EXPORTHardFault_Handler
B .
ENDP
MemManage_Handler\
PROC
EXPORTMemManage_Handler
B .
ENDP
BusFault_Handler\
PROC
EXPORTBusFault_Handler
B .
ENDP
UsageFault_Handler\
PROC
EXPORTUsageFault_Handler
B .
ENDP
SVC_Handler PROC
EXPORTSVC_Handler
B .
ENDP
DebugMon_Handler\
PROC
EXPORTDebugMon_Handler
B .
ENDP
PendSV_HandlerPROC
EXPORTPendSV_Handler
B .
ENDP
SysTick_Handler PROC
EXPORTSysTick_Handler
B .
ENDP
Default_Handler PROC
EXPORTWWDG_IRQHandler
EXPORTPVD_IRQHandler
EXPORTTAMPER_IRQHandler
EXPORTRTC_IRQHandler
EXPORTFLASH_IRQHandler
EXPORTRCC_IRQHandler
EXPORTEXTI0_IRQHandler
EXPORTEXTI1_IRQHandler
EXPORTEXTI2_IRQHandler
EXPORTEXTI3_IRQHandler
EXPORTEXTI4_IRQHandler
EXPORTDMA1_Channel1_IRQHandler
EXPORTDMA1_Channel2_IRQHandler
EXPORTDMA1_Channel3_IRQHandler
EXPORTDMA1_Channel4_IRQHandler
EXPORTDMA1_Channel5_IRQHandler
EXPORTDMA1_Channel6_IRQHandler
EXPORTDMA1_Channel7_IRQHandler
EXPORTADC1_2_IRQHandler
EXPORTUSB_HP_CAN1_TX_IRQHandler
EXPORTUSB_LP_CAN1_RX0_IRQHandler
EXPORTCAN1_RX1_IRQHandler
EXPORTCAN1_SCE_IRQHandler
EXPORTEXTI9_5_IRQHandler
EXPORTTIM1_BRK_IRQHandler
EXPORTTIM1_UP_IRQHandler
EXPORTTIM1_TRG_COM_IRQHandler
EXPORTTIM1_CC_IRQHandler
EXPORTTIM2_IRQHandler
EXPORTTIM3_IRQHandler
EXPORTTIM4_IRQHandler
EXPORTI2C1_EV_IRQHandler
EXPORTI2C1_ER_IRQHandler
EXPORTI2C2_EV_IRQHandler
EXPORTI2C2_ER_IRQHandler
EXPORTSPI1_IRQHandler
EXPORTSPI2_IRQHandler
EXPORTUSART1_IRQHandler
EXPORTUSART2_IRQHandler
EXPORTUSART3_IRQHandler
EXPORTEXTI15_10_IRQHandler
EXPORTRTCAlarm_IRQHandler
EXPORTUSBWakeUp_IRQHandler
EXPORTTIM8_BRK_IRQHandler
EXPORTTIM8_UP_IRQHandler
EXPORTTIM8_TRG_COM_IRQHandler
EXPORTTIM8_CC_IRQHandler
EXPORTADC3_IRQHandler
EXPORTFSMC_IRQHandler
EXPORTSDIO_IRQHandler
EXPORTTIM5_IRQHandler
EXPORTSPI3_IRQHandler
EXPORTUART4_IRQHandler
EXPORTUART5_IRQHandler
EXPORTTIM6_IRQHandler
EXPORTTIM7_IRQHandler
EXPORTDMA2_Channel1_IRQHandler
EXPORTDMA2_Channel2_IRQHandler
EXPORTDMA2_Channel3_IRQHandler
EXPORTDMA2_Channel4_5_IRQHandler
WWDG_IRQHandler
PVD_IRQHandler
TAMPER_IRQHandler
RTC_IRQHandler
FLASH_IRQHandler
RCC_IRQHandler
EXTI0_IRQHandler
EXTI1_IRQHandler
EXTI2_IRQHandler
EXTI3_IRQHandler
EXTI4_IRQHandler
DMA1_Channel1_IRQHandler
DMA1_Channel2_IRQHandler
DMA1_Channel3_IRQHandler
DMA1_Channel4_IRQHandler
DMA1_Channel5_IRQHandler
DMA1_Channel6_IRQHandler
DMA1_Channel7_IRQHandler
ADC1_2_IRQHandler
USB_HP_CAN1_TX_IRQHandler
USB_LP_CAN1_RX0_IRQHandler
CAN1_RX1_IRQHandler
CAN1_SCE_IRQHandler
EXTI9_5_IRQHandler
TIM1_BRK_IRQHandler
TIM1_UP_IRQHandler
TIM1_TRG_COM_IRQHandler
TIM1_CC_IRQHandler
TIM2_IRQHandler
TIM3_IRQHandler
TIM4_IRQHandler
I2C1_EV_IRQHandler
I2C1_ER_IRQHandler
I2C2_EV_IRQHandler
I2C2_ER_IRQHandler
SPI1_IRQHandler
SPI2_IRQHandler
USART1_IRQHandler
USART2_IRQHandler
USART3_IRQHandler
EXTI15_10_IRQHandler
RTCAlarm_IRQHandler
USBWakeUp_IRQHandler
TIM8_BRK_IRQHandler
TIM8_UP_IRQHandler
TIM8_TRG_COM_IRQHandler
TIM8_CC_IRQHandler
ADC3_IRQHandler
FSMC_IRQHandler
SDIO_IRQHandler
TIM5_IRQHandler
SPI3_IRQHandler
UART4_IRQHandler
UART5_IRQHandler
TIM6_IRQHandler
TIM7_IRQHandler
DMA2_Channel1_IRQHandler
DMA2_Channel2_IRQHandler
DMA2_Channel3_IRQHandler
DMA2_Channel4_5_IRQHandler
B .
ENDP
ALIGN
;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************
IF :DEF:__MICROLIB
EXPORT__initial_sp
EXPORT__heap_base
EXPORT__heap_limit
ELSE
IMPORT__use_two_region_memory
EXPORT__user_initial_stackheap
__user_initial_stackheap
LDR R0, =Heap_Mem
LDR R1, =(Stack_Mem + Stack_Size)
LDR R2, = (Heap_Mem +Heap_Size)
LDR R3, = Stack_Mem
BX LR
ALIGN
ENDIF
END
;******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE*****
本帖最后由 小笨蛋 于 2013-4-7 11:26 编辑
问题已解决了！
原来库中的复位初始化是这样的：Reset_Handler PROC
EXPORTReset_Handler
IMPORT__main
LDR R1, = __initial_sp ; restore original stack pointer
MSR MSP, R1
LDR R0, =__main
BX R0
ENDP然而RTT中是这样的Reset_Handler PROC
EXPORTReset_Handler
IMPORT__main
IMPORTSystemInit
LDR R0, =SystemInit
BLX R0
LDR R0, =__main
BX R0
ENDP只要加上这个就可以了。 IMPORTSystemInit
LDR R0, =SystemInit
BLX R0 但是我不明白的是RTT已经在Main()函数中调用了SystemInit()；为何还要在启动文件中再使用一次？？？？int main(void)
{
rt_uint32_t UNUSED level;
JTAG_Set(1); //关闭JTAG功能,使用SWD仿真
/* disable interrupt first */
level = rt_hw_interrupt_disable();
/* init system setting */
SystemInit();
/* startup RT-Thread RTOS */
rtthread_startup();
return 0;
}实践发现，两个还真的一个都不能少，搞不懂~ 嗯，这个调用两次的问题，俺也陪楼主等答案{:time:} eehong 发表于 2013-4-7 21:20 static/image/common/back.gif
嗯，这个调用两次的问题，俺也陪楼主等答案
你也遇到这个情况了吗？ 我用的例程中也是调用了两次，以前只是觉着有点奇怪，没太在意。这么一说，我还真有点疑惑了 本帖最后由 njchenmin 于 2013-4-29 06:13 编辑
坐等回答，要是这样的话系统时钟都只有8M了，运行不是慢的要命了? @楼主 你不是都说了RTT中的启动代码已经有了systeminit了吗？为什么还要添加？没看动你说的！
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