J-Link and J-Trace have a JTAG connector compatible to ARM's Multi-ICE. The JTAG connector is a 20 way Insulation Displacement Connector (IDC) keyed box header (2.54mm male) that mates with IDC sockets mounted on a ribbon cable. The following table lists the J-Link / J-Trace JTAG pi...
They are not essential for JTAG/SWD in general. The following table lists the J- Link / J-Trace JTAG pinout. PIN SIGNAL TYPE Description This is the target reference voltage. It is used to check if the target has power, to create the logic-level reference for 1 VTref Input the input...
I created my own pinout diagram and posted all my notes (including ESP32 hookup) here: http://gojimmypi.blogspot.com/2017/03/jtag-debugging-for-esp32.html Let’s see if this tweet shows up as a hookup pic: https://twitter.com/gojimmypi/status/842882252866441216 Hope this helps… ...
Pinout for JTAG348 12.1.2 Pinout for SWD 351 12.1.3 Pinout for SWD + Virtual COM Port (VCOM) 353 12.1.4 Pinout for SPI 354 12.2 38-pin Mictor JTAG and Trace connector355 12.2.1 Connecting the target board 355 12.2.2 Pinout356 12.2.3 Assignment of trace information pins between ETM ...