盛行的是JTAG/SWD
| 仿真器端口 | 衔接方针板 | 补白 |
| 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 |
下面是规范的接口摆放：
ST-Link/V2 JTA/SWD接口是怎么界说的？
下面为ST-Link/V2 JTAG/SWD接口界说：
| 仿真器端口 | 衔接方针板 | 功用 |
| 1. TVCC | MCU电源VCC | 衔接STM32方针板的电源VCC |
| 2. TVCC | MCU电源VCC | 衔接STM32方针板的电源VCC |
| 3. TRST | GND | GROUND |
| 4. UART-RX | GND | GROUND |
| 5. TDI | TDI | 衔接STM32的JTAG TDI |
| 6. UART-TX | GND | GROUND |
| 7. TMS, SWIO | TMS, SWIO | 衔接STM32的JTAG的TMS, SWD的SW IO |
| 8. BOOT0 | GND | GROUND |
| 9. TCK, SWCLK | TCK, SWCLK | 衔接STM32的JTAG的TCK, SWD的SW CLK |
| 10. SWIM | GND | GROUND |
| 11. NC | NC | Unused |
| 12. GND | GND | GROUND |
| 13. TDO | TDO | 衔接STM32的JTAG TDO |
| 14. SWIM-RST | GND | GROUND |
| 15. STM32-RESET | RESET | 衔接STM32方针板的RESET端口 |
| 16. KEY | NC | GROUND |
| 17. NC | NC | Unused |
| 18. GND | GND | GROUND |
| 19. VDD | NC | VDD (3.3V) |
| 20. GND | GND | GROUND |
下面是ST-Link/V2 JTAG/SWD规范的接口摆放：
STM32F10X手册中要求的JTAG/SWD接法：
