Technical Overview
The SEGGER STDC 14 Adapter represents a critical interface solution for embedded systems developers working with STMicroelectronics' STDC14 connector standard. This passive adapter seamlessly bridges the gap between SEGGER's industry-standard 20-pin 0.1" J-Link connector and the compact 14-pin 0.05" STDC connector, maintaining full electrical compatibility across all supported debugging protocols.
Connector Specifications
| Pin | STDC14 Function | ARM10 Equivalent | Signal Type |
|---|---|---|---|
| 1-2 | Reserved | - | Not Connected |
| 3 | T_VCC | Pin 1 | Target Power |
| 4 | T_JTMS/T_SWDIO | Pin 2 | JTAG/SWD Data |
| 5 | GND | Pin 3 | Ground |
| 6 | T_JCLK/T_SWCLK | Pin 4 | Clock Signal |
| 7 | GND | Pin 5 | Ground |
| 8 | T_JTDO/T_SWO | Pin 6 | Trace Output |
| 9 | T_JRCLK | Pin 7 | Return Clock |
| 10 | T_JTDI | Pin 8 | JTAG Data In |
| 11 | GND_DETECT | Pin 9 | Ground Detect |
| 12 | T_NRST | Pin 10 | Reset Signal |
| 13 | T_VCP_RX | - | UART Receive |
| 14 | T_VCP_TX | - | UART Transmit |
Wiring Quick-Start
Connection setup requires no external power or configuration. Simply connect the adapter's 20-pin connector to your J-Link or Flasher probe, then connect the included 14-pin ribbon cable to your target system's STDC14 connector.
Compatible Hardware
The adapter supports the complete range of SEGGER debug probes including J-Link Pro PoE, J-Link Pro, J-Link ULTRA+, J-Link WiFi, J-Link PLUS series, and J-Link BASE series. All Flasher models are equally supported, providing maximum flexibility across development environments.
Target Applications
Primary applications include STM32 evaluation boards, custom STM32 designs, and any embedded system implementing the STDC14 connector standard. The adapter proves especially valuable in production environments where existing J-Link infrastructure must interface with newer STDC14-equipped targets.