Hi, I'm utilizing an STM32L443RCT in my design and need to know what a typical 10 pin programming header pinout looks like for the device. Which signals would I need SWDIO, SCLCK etc. to wire to the 10 pin header? Any help would be much appreciated.

[WAkba.1]

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[Piranha]

https://developer.arm.com/documentation/ka001776/latest

https://www2.keil.com/coresight/coresight-connectors

https://interrupt.memfault.com/blog/a-deep-dive-into-arm-cortex-m-debug-interfaces

[S.Ma]

Have a look also at TAG connect if we are talking of a production board which prefferably for cost, does not use any connector.

[Pavel A.]

See UM2502 (the ST-LINKv3 document), Fig 10 on page 19.

It is 14-pin extension of the 10-pin connector. Two pair of pins added on both sides.

As a minimum you'll need SWDIO, SWDCLK, GND and NRST (optional but highly recommended).

​Then you can connect T_VCC, useful to detect the target voltage.

​Then you can connect SWO - or the two extension pins from UART TX, RX on the target to the VCP of the debugger or standalone TTL UART to USB adapter. Either option is very useful.

​

If the target footprint is tight, consider needle connector (6 or 10 pin variants) - but the adapter cables are obscenely expensive.