Connecting via SWD header. The easiest way to connect your development board to your debugger is by using the 4-pin SWD header, if present. This header is usually a male dupont header, but female headers are also used. The header exposes a ground pin, a +3.3V pin, a clock pin, and a data pin.

TL;DR abstract: for ARM SWD, TI Spy-Bi-Wire, or Microchip ICD, use the Tag-Connect No-Legs footprint with standard pin/pad assignments, and get Tag-Connect cables. When designing devices that use microcontrollers, one needs to provide a debug and programming connector.

The ST-LINK/V2 is an in-circuit debugger/programmer for the STM8 and STM32 microcontrollers. The single wire interface module (SWIM) and the JTAG/serial wire debugging (SWD) interfaces facilitate communication with any STM8 or STM32 microcontroller operating on …

Sep 6, 2018 · Learn how to create a 6-pin SWD adapter to program STM32 development boards with an external programmer.

J-Link supports Multiple Target Interfaces. 1. Overview. 2. JTAG Interface Connection (20 pin) 3. SWD and SWO (also called SWV) Compatibility. On the target debug side J-Link and J-Trace have a male 20-pin IDC keyed box header with 0.1" pitch (2.54mm) that mates with female IDC connectors mounted on a ribbon cable.

Serial Wire Debug (SWD) is really just a modification/implementation of JTAG specifically for ARM processors. SWD puts the 2 pins (SWDIO and SWCLK) on top of the JTAG pins allowing a user to use either JTAG or SWD without the need to breakout more pins.

After making the switch from AVR to STM32 microcontrollers, I redesigned my old 6-pin ICSP pogo-programming adapter for SWD. The new design allows programming with pogo pins or a small pin header soldered to the pogo pads for debugging, all with the same cable.

SWD is a debug interface defined by ARM. SWD takes up only two pins and is available on all of NXP’s ARM Cortex-M based MCUs. Reset, halt, and resume the execution of the processor. Modify core registers of the processor to change its execution context and flow. Full access to the processor’s memory space to download data to be programmed.

6 pin MCU/FPGA/DSP/CPLD programming cables, tiny PCB footprints. No mating part required. Save cost & space on every board. Buy on-line.

The TC2030-IDC-NL is our “No Legs” 6-pin Plug-of-Nails™ programming cable fitted with a 6-pin 0.1″ pitch ribbon connector. With its tiny 0.02 sq inch footprint the TC2030 Tag-Connector has a footprint using about the same PCB space as an 0805 resistor.