【免费】STM32的串口IAP例程_stm32iap不进中断资源-CSDN文库

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STM32的串口IAP（In-Application Programming）例程是嵌入式开发中一个重要的实践案例，它允许在不使用外部编程器的情况下通过串口更新固件。本例程基于STM32F103R8T6微控制器，这是一种广泛应用的ARM Cortex-M3内核的芯片，拥有丰富的外设接口和足够的存储空间，适合进行此类复杂操作。 STM32的串口IAP例程主要涉及到以下几个关键知识点： 1. **串口通信**：串口通信是设备间传输数据的基本方式，STM32的UART（通用异步收发传输器）模块提供了这种功能。在这个例程中，UART被配置为全双工模式，用于接收和发送升级固件的数据包。 2. **BOOTLOADER**：BootLoader是系统启动时运行的第一段程序，负责加载应用程序到内存并执行。在串口IAP中，BootLoader负责接收并验证通过串口发送的新固件数据，然后将这些数据写入Flash存储器。 3. **Flash编程**：STM32的Flash存储器需要特定的指令集进行编程和擦除操作。在BootLoader中，需要正确使用HAL或LL库中的函数来执行这些操作，确保数据安全可靠地写入。 4. **CRC校验**：为了确保接收到的数据的完整性，通常会使用CRC（循环冗余校验）算法对传输的数据进行校验。在例程中，发送方计算CRC值并附加到数据包中，接收方在接收后进行校验，确认数据无误。 5. **应用层与底层分离**："APP-led"可能代表应用程序层，处理LED控制等上层功能；而"BootLoader-Uart"则是底层 BootLoader 部分，负责串口通信和固件更新。这种分离有助于保持代码的模块化和可维护性。 6. **中断与DMA**：在串口接收大量数据时，可以使用中断或DMA（直接存储器访问）技术，以避免CPU频繁地检查串口状态，提高系统效率。中断在数据到达时触发处理，而DMA则能自动完成数据传输。 7. **错误处理**：在固件升级过程中，可能会遇到各种错误，如数据包丢失、CRC校验失败等。良好的错误处理机制可以确保在出现问题时，系统能够恢复到稳定状态，避免硬件损坏。通过理解以上知识点，开发者可以实现一个完整的STM32串口IAP例程，允许远程更新设备固件，提高产品维护性和灵活性。这个例程对于学习STM32和嵌入式系统的开发人员具有很高的参考价值。

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STM32的串口IAP例程（370个子文件）

BootLoader.axf 346KB

app_led.axf 280KB

BootLoader.axf 279KB

app.axf 278KB

app_sct.Bak 494B

app_led.bin 2KB

stm32f10x_tim.c 107KB

stm32f10x_flash.c 61KB

stm32f10x_rcc.c 50KB

stm32f10x_adc.c 46KB

stm32f10x_i2c.c 45KB

stm32f10x_can.c 44KB

stm32f10x_usart.c 37KB

system_stm32f10x.c 36KB

stm32f10x_fsmc.c 35KB

stm32f10x_spi.c 30KB

stm32f10x_dma.c 29KB

stm32f10x_sdio.c 28KB

stm32f10x_it.c 26KB

Ymodem.c 23KB

stm32f10x_gpio.c 23KB

stm32f10x_dac.c 19KB

core_cm3.c 17KB

stm32f10x_cec.c 11KB

stm32f10x_pwr.c 9KB

stm32f10x_rtc.c 8KB

stm32f10x_bkp.c 8KB

misc.c 7KB

stm32f10x_exti.c 7KB

stm32f10x_wwdg.c 6KB

stm32f10x_dbgmcu.c 5KB

stm32f10x_iwdg.c 5KB

stm32f10x_crc.c 3KB

function.c 3KB

config.c 3KB

main.c 2KB

config.c 1KB

stm32f10x_tim.crf 289KB

stm32f10x_can.crf 285KB

stm32f10x_adc.crf 283KB

stm32f10x_tim.crf 282KB

stm32f10x_i2c.crf 281KB

stm32f10x_fsmc.crf 281KB

ymodem.crf 280KB

stm32f10x_sdio.crf 279KB

stm32f10x_spi.crf 278KB

stm32f10x_dma.crf 277KB

stm32f10x_rcc.crf 274KB

stm32f10x_flash.crf 274KB

function.crf 273KB

stm32f10x_usart.crf 273KB

stm32f10x_dac.crf 273KB

function.crf 272KB

stm32f10x_cec.crf 271KB

stm32f10x_gpio.crf 271KB

main.crf 271KB

stm32f10x_bkp.crf 271KB

stm32f10x_exti.crf 270KB

stm32f10x_pwr.crf 270KB

stm32f10x_rtc.crf 270KB

stm32f10x_it.crf 269KB

system_stm32f10x.crf 269KB

config.crf 269KB

stm32f10x_wwdg.crf 268KB

stm32f10x_iwdg.crf 268KB

stm32f10x_dbgmcu.crf 268KB

misc.crf 268KB

stm32f10x_crc.crf 268KB

stm32f10x_can.crf 256KB

stm32f10x_adc.crf 255KB

stm32f10x_i2c.crf 253KB

stm32f10x_fsmc.crf 252KB

共 370 条

T1588 000:328 SEGGER J-Link V4.96d Log File (0000ms, 0279ms total) T1588 000:328 DLL Compiled: Jan 29 2015 11:45:37 (0000ms, 0279ms total) T1588 000:328 Logging started @ 2019-11-09 18:40 (0000ms, 0279ms total) T1588 000:328 JLINK_SetWarnOutHandler(...) (0000ms, 0279ms total) T1588 000:328 JLINK_OpenEx(...) Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46 Hardware: V8.00 Feature(s): RDI,FlashDL,FlashBP,JFlash,GDBFULL returns O.K. (0271ms, 0550ms total) T1588 000:599 JLINK_SetErrorOutHandler(...) (0000ms, 0550ms total) T1588 000:599 JLINK_ExecCommand("ProjectFile = "C:\Users\mushike\Desktop\遥控器\WiFi遥控器-aithink\Pro\JLinkSettings.ini"", ...) returns 0x00 (0001ms, 0551ms total) T1588 000:604 JLINK_ExecCommand("Device = STM32F103C8", ...)Device "STM32F103C8" selected. returns 0x00 (0004ms, 0555ms total) T1588 000:608 JLINK_ExecCommand("DisableConnectionTimeout", ...) returns 0x01 (0000ms, 0555ms total) T1588 000:608 JLINK_GetHardwareVersion() returns 0x13880 (0000ms, 0555ms total) T1588 000:608 JLINK_GetDLLVersion() returns 49604 (0000ms, 0555ms total) T1588 000:608 JLINK_GetFirmwareString(...) (0000ms, 0555ms total) T1588 000:619 JLINK_GetDLLVersion() returns 49604 (0000ms, 0555ms total) T1588 000:619 JLINK_GetCompileDateTime() (0000ms, 0555ms total) T1588 000:621 JLINK_GetFirmwareString(...) (0000ms, 0555ms total) T1588 000:625 JLINK_GetHardwareVersion() returns 0x13880 (0000ms, 0555ms total) T1588 000:638 JLINK_TIF_Select(JLINKARM_TIF_SWD) returns 0x00 (0005ms, 0560ms total) T1588 000:643 JLINK_SetSpeed(5000) (0001ms, 0561ms total) T1588 000:644 JLINK_GetId() >0x108 TIF>Found SWD-DP with ID 0x1BA01477 >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF> >0x108 TIF>Found SWD-DP with ID 0x1BA01477 >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x28 TIF> >0x0D TIF> >0x21 TIF> >0x0D TIF> >0x21 TIF>Found Cortex-M3 r1p1, Little endian. -- CPU_WriteMem(4 bytes @ 0xE0002000) -- CPU_ReadMem(4 bytes @ 0xE000EDF0) -- CPU_ReadMem(4 bytes @ 0xE0002000)FPUnit: 6 code (BP) slots and 2 literal slots -- CPU_ReadMem(4 bytes @ 0xE000EDFC) -- CPU_ReadMem(4 bytes @ 0xE0001000) -- CPU_WriteMem(4 bytes @ 0xE0001000) -- CPU_ReadMem(4 bytes @ 0xE000ED88) -- CPU_WriteMem(4 bytes @ 0xE000ED88) -- CPU_ReadMem(4 bytes @ 0xE000ED88) -- CPU_WriteMem(4 bytes @ 0xE000ED88) -- CPU_ReadMem(4 bytes @ 0xE00FF010)TPIU fitted. -- CPU_ReadMem(4 bytes @ 0xE00FF014) -- CPU_ReadMem(4 bytes @ 0xE00FF018) >0x0D TIF> >0x21 TIF> returns 0x1BA01477 (0101ms, 0662ms total) T1588 000:745 JLINK_GetDLLVersion() returns 49604 (0000ms, 0662ms total) T1588 000:745 JLINK_CORE_GetFound() returns 0x30000FF (0000ms, 0662ms total) T1588 000:745 JLINK_GetDebugInfo(0x100) -- Value=0xE00FF003 returns 0x00 (0000ms, 0662ms total) T1588 000:748 JLINK_ReadMem (0xE00FF000, 0x0020 Bytes, ...) -- CPU is running -- CPU_ReadMem(32 bytes @ 0xE00FF000) - Data: 03 F0 F0 FF 03 20 F0 FF 03 30 F0 FF 03 10 F0 FF ... returns 0x00 (0001ms, 0663ms total) T1588 000:749 JLINK_ReadMem (0xE000EFF0, 0x0010 Bytes, ...) -- CPU is running -- CPU_ReadMem(16 bytes @ 0xE000EFF0) - Data: 0D 00 00 00 E0 00 00 00 05 00 00 00 B1 00 00 00 returns 0x00 (0001ms, 0664ms total) T1588 000:750 JLINK_ReadMem (0xE000EFD0, 0x0020 Bytes, ...) -- CPU is running -- CPU_ReadMem(32 bytes @ 0xE000EFD0) - Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... returns 0x00 (0001ms, 0665ms total) T1588 000:751 JLINK_ReadMem (0xE0001FF0, 0x0010 Bytes, ...) -- CPU is running -- CPU_ReadMem(16 bytes @ 0xE0001FF0) - Data: 0D 00 00 00 E0 00 00 00 05 00 00 00 B1 00 00 00 returns 0x00 (0001ms, 0666ms total) T1588 000:752 JLINK_ReadMem (0xE0001FD0, 0x0020 Bytes, ...) -- CPU is running -- CPU_ReadMem(32 bytes @ 0xE0001FD0) - Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... returns 0x00 (0001ms, 0667ms total) T1588 000:753 JLINK_ReadMem (0xE0002FF0, 0x0010 Bytes, ...) -- CPU is running -- CPU_ReadMem(16 bytes @ 0xE0002FF0) - Data: 0D 00 00 00 E0 00 00 00 05 00 00 00 B1 00 00 00 returns 0x00 (0001ms, 0668ms total) T1588 000:754 JLINK_ReadMem (0xE0002FD0, 0x0020 Bytes, ...) -- CPU is running -- CPU_ReadMem(32 bytes @ 0xE0002FD0) - Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... returns 0x00 (0001ms, 0669ms total) T1588 000:755 JLINK_ReadMem (0xE0000FF0, 0x0010 Bytes, ...) -- CPU is running -- CPU_ReadMem(16 bytes @ 0xE0000FF0) - Data: 0D 00 00 00 E0 00 00 00 05 00 00 00 B1 00 00 00 returns 0x00 (0001ms, 0670ms total) T1588 000:756 JLINK_ReadMem (0xE0000FD0, 0x0020 Bytes, ...) -- CPU is running -- CPU_ReadMem(32 bytes @ 0xE0000FD0) - Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... returns 0x00 (0001ms, 0671ms total) T1588 000:757 JLINK_ReadMem (0xE0040FF0, 0x0010 Bytes, ...) -- CPU is running -- CPU_ReadMem(16 bytes @ 0xE0040FF0) - Data: 0D 00 00 00 90 00 00 00 05 00 00 00 B1 00 00 00 returns 0x00 (0001ms, 0672ms total) T1588 000:758 JLINK_ReadMem (0xE0040FD0, 0x0020 Bytes, ...) -- CPU is running -- CPU_ReadMem(32 bytes @ 0xE0040FD0) - Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... returns 0x00 (0001ms, 0673ms total) T1588 000:759 JLINK_ReadMemU32(0xE000ED00, 0x0001 Items, ...) -- CPU is running -- CPU_ReadMem(4 bytes @ 0xE000ED00) - Data: 31 C2 1F 41 returns 0x01 (0001ms, 0674ms total) T1588 000:760 JLINK_SetResetType(JLINKARM_RESET_TYPE_NORMAL) returns JLINKARM_RESET_TYPE_NORMAL (0000ms, 0674ms total) T1588 000:760 JLINK_Reset() -- CPU is running -- CPU_WriteMem(4 bytes @ 0xE000EDF0) -- CPU is running -- CPU_WriteMem(4 bytes @ 0xE000EDFC) >0x35 TIF> -- CPU is running -- CPU_WriteMem(4 bytes @ 0xE000ED0C) -- CPU is running -- CPU_ReadMem(4 bytes @ 0xE000EDF0) -- CPU is running -- CPU_ReadMem(4 bytes @ 0xE000EDF0) -- CPU is running -- CPU_WriteMem(4 bytes @ 0xE000EDF0) -- CPU is running -- CPU_WriteMem(4 bytes @ 0xE000EDFC) -- CPU is running -- CPU_ReadMem(4 bytes @ 0xE000EDF0) -- CPU_WriteMem(4 bytes @ 0xE0002000) -- CPU_ReadMem(4 bytes @ 0xE000EDFC) -- CPU_ReadMem(4 bytes @ 0xE0001000) (0023ms, 0697ms total) T1588 000:783 JLINK_Halt() returns 0x00 (0000ms, 0697ms total) T1588 000:783 JLINK_IsHalted() returns TRUE (0000ms, 0697ms total) T1588 000:783 JLINK_ReadMemU32(0xE000EDF0, 0x0001 Items, ...) -- CPU_ReadMem(4 bytes @ 0xE000EDF0) - Data: 03 00 03 00 returns 0x01 (0001ms, 0698ms total) T1588 000:784 JLINK_WriteU32(0xE000EDF0, 0xA05F0003) -- CPU_WriteMem(4 bytes @ 0xE000EDF0) returns 0x00 (0001ms, 0699ms total) T1588 000:785 JLINK_WriteU32(0xE000EDFC, 0x01000000) -- CPU_WriteMem(4 bytes @ 0xE000EDFC) returns 0x00 (0001ms, 0700ms total) T1588 000:795 JLINK_GetHWStatus(...) returns 0x00 (0001ms, 0701ms total) T1588 000:802 JLINK_GetNumBPUnits(Type = 0xFFFFFF00) returns 0x06 (0000ms, 0701ms total) T1588 000:802 JLINK_GetNumBPUnits(Type = 0xF0) returns 0x2000 (0000ms, 0701ms total) T1588 000:802 JLINK_GetNumWPUnits() returns 0x04 (0000ms, 0701ms total) T1588 000:809 JLINK_GetSpeed() returns 0xFA0 (0000ms, 0701ms total) T1588 000:813 JLINK_ReadMemU32(0xE000E004, 0x0001 Items, ...) -- CPU_ReadMem(4 bytes @ 0xE000E004) - Data: 01 00 00 00 returns 0x01 (0002ms, 0703ms total) T1588 000:815 JLINK_ReadMemU32(0xE000E004, 0x0001 Items, ...) -- CPU_ReadMem(4 bytes @ 0xE000E004) - Data: 01 00 00 00 returns 0x01 (0001ms, 0704ms total) T1588 000:816 JLINK_WriteMem(0xE0001000, 0x001C Bytes, ...) - Data: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... -- CPU_WriteMem(28 bytes @ 0xE0001000) returns 0x1C (0002ms, 0706ms total)

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