ST-link Vapp highest series resistor

[CGadg]

What is the highest value series resistor which can be put into the ICSP Vapp pin a design?

It being connected to VDD and presenting a risk of harm if connected wrongly. 

I can spend time testing this but would prefer to know if this has a definite value.

[CGadg]

I tested 5k, errors only. 2.5k seemed OK, and I only need 330R so that will do.

I'll leave this open for further comments. My programmer is the ST-LINK V2

[Andrew Neil]

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@CGadg wrote:

My programmer is the ST-LINK V2

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Genuine, or clone?

https://community.st.com/t5/stm32-mcus/how-to-recognize-a-genuine-st-link-v2-versus-a-cloned-one/tac-p/703663/highlight/true#M965

[CGadg]

It's a genuine one