rt-thread studio生成的程序写入stm32f405rg无法运行

发布于 2020-11-22 19:00:28 浏览：1400 订阅该版

使用rt_thread studio建立的最基础的工程，未写用户代码，编译后写入stm32f405rg，无法运行，第二次再烧写程序，无提示错误，无法再进行烧写
```
Download Start Address: 0x08000000

开始下载程序：2020-11-22 18:47:52
C:\RT-ThreadStudio>"C:/Program Files (x86)/SEGGER/JLink_V644h/JLink.exe" -device STM32F405RG -ExitOnError -CommanderScript C:\RT-ThreadStudio\workspace/.metadata/Temp/rtthread_download_init.jlink 
SEGGER J-Link Commander V6.44h (Compiled May  3 2019 17:37:48)
DLL version V6.44h, compiled May  3 2019 17:37:09
J-Link Commander will now exit on Error
J-Link Command File read successfully.
Processing script file...
J-Link connection not established yet but required for command.
Connecting to J-Link via USB...O.K.
Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
Hardware version: V8.00
S/N: 20090626
License(s): RDI,FlashDL,FlashBP,JFlash,GDBFull
VTref=3.170V
Selecting SWD as current target interface.
Device "STM32F405RG" selected.
Selecting 2000 kHz as target interface speed
Target connection not established yet but required for command.
Device "STM32F405RG" selected.
Connecting to target via SWD
Found SW-DP with ID 0x2BA01477
SWD speed too high. Reduced from 2000 kHz to 1350 kHz for stability
STM32 (connect): Can not attach to CPU. Trying connect under reset.
Found SW-DP with ID 0x2BA01477
Found SW-DP with ID 0x2BA01477
STM32 (connect): Can not attach to CPU. Trying connect under reset.
Found SW-DP with ID 0x2BA01477
****** Error: STM32: Connecting to CPU via connect under reset failed.
Found SW-DP with ID 0x2BA01477
STM32 (connect): Can not attach to CPU. Trying connect under reset.
Found SW-DP with ID 0x2BA01477
Found SW-DP with ID 0x2BA01477
STM32 (connect): Can not attach to CPU. Trying connect under reset.
Found SW-DP with ID 0x2BA01477
****** Error: STM32: Connecting to CPU via connect under reset failed.
Cannot connect to target.
Script processing completed.
执行完毕, 耗时：1920ms.
```
jlink也访问不到芯片。
换了多个jlink的版本都不行
凡是rt-Thread studio生成的代码，将stm32f405rg手动擦除代码后，第一次是能够写进去的，但是不运行，第二次就写不进去了，不管有无操作系统。
不知哪位专家能解答一下这个问题不。十分感谢！！！