The magic is entirely in the firmware. Segger’s intellectual property lies in how they manage the JTAG state machine inside the LPC MCU, how they handle the USB packet overhead, and their proprietary technology. RTT uses a ring buffer in the target MCU's RAM that the J-Link reads via background memory access—this is a software innovation, not a hardware one.
: Clones often use a "gold sinking" process for the PCB to mimic original build quality. Firmware Protection
The JLink V9 schematic appears to be well-designed and suitable for mass production. Here are some observations:
The magic is entirely in the firmware. Segger’s intellectual property lies in how they manage the JTAG state machine inside the LPC MCU, how they handle the USB packet overhead, and their proprietary technology. RTT uses a ring buffer in the target MCU's RAM that the J-Link reads via background memory access—this is a software innovation, not a hardware one.
: Clones often use a "gold sinking" process for the PCB to mimic original build quality. Firmware Protection jlink v9 schematic
The JLink V9 schematic appears to be well-designed and suitable for mass production. Here are some observations: The magic is entirely in the firmware