打了断点后启用调试，调试栏上的单步调试等几个按钮成灰色？

发布于 2022-11-15 10:09:15 浏览：550 订阅该版

下载到板子上并成功启动，但是在终端没有显示 Hello RTThread，然后准备单步调试，发现，调试模式启动后，单步调试栏不能动。

```
File download complete
Time elapsed during download operation: 00:00:00.846
 ------ Switching context ----- 
Target connection mode: Default
Reading ROM table for AP 0 @0xe00fffd0
Hardware watchpoint supported by the target 
COM frequency = 4000 kHz
ST-LINK Firmware version : V2J39M27
Device ID: 0x415
PC: 0x800440c
ST-LINK detects target voltage = 3.14 V
ST-LINK device status: HALT_MODE
ST-LINK device initialization OK
Enter STM32_AppReset() function 
NVIC_DFSR_REG = 0x00000008
NVIC_CFGFSR_REG = 0x00000000
TraceCaptureStart and SWV event set to APP_TRUE 
ST-LINK device status: RUN_MODE
ST-LINK device status: RESET_MODE
ST-LINK device status: RUN_MODE
ST-LINK device status: RESET_MODE
ST-LINK device status: RUN_MODE
ST-LINK device status: RESET_MODE
ST-LINK device status: RUN_MODE
```

![Snipaste_2022-11-15_10-08-28.png](https://oss-club.rt-thread.org/uploads/20221115/8253e0fb0fd35bff147375b57463d94d.png "Snipaste_2022-11-15_10-08-28.png")