One end connects to the 8-pin JTAG header on device, and the other end should be connected to J-Link probe. What is better way to interface this 2x4 pin socket with 20-pin J-Link probe? Should be used a custom-built connector for this, which connects matching pins? Please advice the most handy way.
This wasn't too hard too find. I am sure there are more.
searched ... 20-pin J-Link connector 8-pin 2x4
This adapter is designed to allow standard 20-pin ARM JTAG devices to connect to the FDI 10-pin mini-JTAG on µEZGUI units and ARM based SOMDIMM units.
with 100k Pullup to SWDIO and 100k Pulldown to SWCLK