While SEGGER keeps their exact PCB layouts proprietary, the community has heavily analyzed the V9. Here is a breakdown of the and how the blocks fit together.
A simple but crucial part. The schematic usually includes a MOSFET (often a 2N7002 or BSS138) to pull the target’s reset line low. The MCU controls this via a GPIO pin (e.g., TARGET_RESET ). jlink v9 schematic
: The official reference for electrical specifications and connector pinouts. for a repair or are you looking to design a custom board based on this architecture? 20-pin J-Link Connector - SEGGER Knowledge Base While SEGGER keeps their exact PCB layouts proprietary,
If you have been doing embedded development for any length of time, you have almost certainly used a by SEGGER. The V9 edition (often referred to as the "EDU" or standard version in its era) represents a sweet spot in debugger evolution: it moved away from the older 20-pin parallel port designs toward a modern, high-speed USB 2.0 microcontroller-based architecture. The schematic usually includes a MOSFET (often a