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STLINK/JLINK_OB/DAPLINK

Overview

关于ST-LINK、J-LINK、DAP-LINK：
ST-LINK： ST公司开发的调试烧录器，用于STM8、STM32微控制器（MCU）的调试工具。
J-LINK ： J-LINK 是SEGGER公司为支持仿真ARM内核芯片推出的JTAG仿真器。配合IAR EWAR，ADS，KEIL，WINARM，RealView等集成开发环境支持所有ARM7、ARM9、ARM11、Cortex M0/M1/M3/M4、Cortex A5/A8/A9等内核芯片的仿真。
DAP-LINK： DAP-LINK是ARM官方开源的一款调试烧录器，以前叫CMSIS DAP，现在改名叫DAPLink，并在功能上做了提升。DAP-LINK可以调试Arm Cortex全系列MCU，所以相比ST-LINK和J-LINK这方面更具优势。

引脚定义：
PA2:TXD
PA3:RXD
PB13:SWCLK
PB14:SWDIO
PB0:NRST

项目设计功能测试：
测试烧录功能：用Keil-MDK，下载程序成功，说明烧录功能正常。
测试Debug功能：用Keil-MDK进行Debug调试，可以调试，说明Debug功能正常。
测试U盘拖拽烧录功能：需要生成bin文件，将bin文件拖到ST-LINK，成功烧录，说明虚拟U盘功能正常。
测试串口收发功能：连接ST-LINK V2-1的TX和RX ，打开串口助手，发送数据，接收区收到相同的数据，说明串口收发正常。

指示灯说明：
添加TXD、RXD用于显示数据收发状态
在ST官方的STLINK V2.1原理图中有一个红绿双色LED，用于显示STLINK的状态；而DAPLINK仅使用了一个单色LED作为状态指示灯，因此，参考潘多拉板载STLINK仅使用一个LED作为状态指示灯。在生产DAPLINK时，将R8纵向贴在R8R9左侧即可作为DAPLINK指示灯。

作为jlinkob设备：

作为DAPlink设备：

作为STLink设备：

简易bom(部分元器件可以根据实际情况做少许微调变更)：

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-26 21:17:39

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