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jlink and swd interface definition

2022-08-10 11:57:00 【Full stack programmer webmaster】

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1. JLink 介绍

J-Link是SEGGER公司为支持仿真ARM内核推出的JTAG仿真器.J-Link 支持所有基于ARMarchitecture with a processor or microcontrollerIAR EWAR,ADS,KEILSingle-step control execution debugging is performed during the development process in an integrated development environment such as this. J-LinkIn addition to debugging the program with the integrated development environment,In addition to program downloads,J-Link还可以单独使用.For example, in the production process of products,can be used aloneJ-Link进行固件的下载.

JLink,SWD 接口定义

Notch to the left,左边为JLink接口定义, 右边为SWD接口定义

JTAG主要使用的有：TRST,TDI,TMS,TCLK,TDO,RESET,GND,（VCC可不连接）SWD主要使用的有：VCC,SWDIO,SWCLK,GND

JLink,SWD 接口说明

仿真器端口	连接目标板	备注
1. VCC	MCU电源VCC	VCC
2. VCC	MCU电源VCC	VCC
3. TRST	TRST	Test ReSeT/ pin
4. GND	GND或悬空	—-
5. TDI	TDI	Test Data In pin
6. GND	GND或悬空	—
7. TMS, SWIO	TMS, SWIO	JTAG:Test Mode State pin ; SWD: Data I/O pin
8. GND	GND或悬空	—
9. TCLK, SWCLK	TMS, SWCLK	JTAG: Test Clock pin ; SWD: Clock pin
10. GND	GND或悬空	—
11. RTCK	RTCK	—
12. GND	GND或悬空	—
13. TDO	TDO Test Data Out pin
14. GND	GND或悬空	—
15. RESET	RESET	RSTIN pin
16. GND	GND或悬空	—
17. NC	NC	—
18. GND	GND或悬空	—
19. NC	NC	—
20. GND	GND或悬空	—