ARM Debug probe with power to target capability

[Gaston]

I have been using PE micro Multilink FX for several years, but its Linux support is terrible. Is there a ST (or another) alternative with this functionality compatible with stm32CubeIDE? I just need to supply power (up to 100 mA at 3.3V) to my board for debugging. I don't need high tracing performance or anything like that.

Thanks in advance,
Gaston

[Andrew Neil]

Is that just to supply power, or do you also want to monitor the supplied power?

For the latter, see STLINK-V3PWR

[Gaston]

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Is that just to supply power, or do you also want to monitor the supplied power?

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I just to supply power to the target

For the latter, see STLINK-V3PWR

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No. I need supply power 3.3V through 10-pin connector along SWDIO, SWCLK and RESET signals.
STLINK-V3PWR supply power through a separate connector instead.

[TDK]

> Is there a ST (or another) alternative with this functionality compatible with stm32CubeIDE? I just need to supply power (up to 100 mA at 3.3V) to my board for debugging

Power is not supplied in the standard 10-pin ARM debug header. All ST programmers adhere to the standard and do not supply power on a 10-pin connector.

https://documentation-service.arm.com/static/5fce6c49e167456a35b36af1

 

It doesn't look like the 10-pin header on the PE micro Multilink FX is any different. What pinout are you using that you want to duplicate functionality?

 

The st-link v2 has a 20-pin connector with 3.3V power supplied on pin 19. That's the closest you'll get.

ST-LINK/V2 | Tool - STMicroelectronics

 

[Chris21]

Segger J-Link probes are very good and can supply 5 volts.

It appears they have an adapter for other voltages: https://www.segger.com/products/debug-probes/j-link/accessories/adapters/supply-adapter/.

https://kb.segger.com/20-pin_J-Link_Connector 

"Pin 19 (5V-Target supply) of the connector can be used to supply power to the target hardware. Supply voltage is 5V, max. current is 300mA. The output current is monitored and protected against overload and short-circuit. For more information about how to enable/disable the power supply, please refer to Target power supply "

[Gaston]

The right adapter for this purpose would be this:
https://www.segger.com/products/debug-probes/j-link/accessories/adapters/target-supply-adapter/

"The Target Supply Adapter provides an adjustable supply voltage to the target board. It has a standard 20-pin 0.1" socket towards the J-Link debug probe or Flasher in-circuit programmer, and a standard 20-pin 0.1" header on the target side and can directly be inserted between the J-Link or Flasher and the debug cable maintaining a 1:1 connection of all debug signals. The supply voltage to the target is provided through pin 19 of the debug cable."

[Andrew Neil]

Perhaps a better approach would be just to make an interposer/adaptor board to allow the target power to come from either the debug probe or a separate source? 

[Gaston]

Yes, it won't be difficult. This reminds me of when I used to make my own debug probes with FRDM boards
https://mcuoneclipse.com/2013/04/21/using-the-freedom-board-as-jtag-programmer/

You just need to supply power through pin1, as we have been discussing.