RT1050-EVKB JTAG

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w2vy
Contributor V

Do any jumpers need to be changed on the RT1050-EVKB to use the 20 pin JTAG as opposed to J28 (USB)?

I did move the power to J2 and set the proper jumper.

Tom

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w2vy
Contributor V

This could be an issue... DNP everywhere that matters

And tightly between J21 and J22/J24

pastedImage_4.png

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w2vy
Contributor V

BlackNight‌ I wonder if I can use the "OpenSDA JTAG" that pin out looks better...

Nope looking at the schematic they are totally different :smileysad:

Now to see if my rework wizard can perform some magic and add those resistors

Tom

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BlackNight
NXP Employee
NXP Employee

That "OpenSDA JTAG" is for programming/debugging the K20 (OpenSDA debug interface), not for the target processor.

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w2vy
Contributor V

Yeah I saw that.

I figured out my previous problem... the probe was in JTAG mode, not SWM

Moving forward ever so slowly... but it is FORWARD! :smileyhappy:

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w2vy
Contributor V

This could be an issue... DNP everywhere that matters

And tightly between J21 and J22/J24

pastedImage_4.png

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w2vy
Contributor V

That is a good thing to have, but did not solve it for me.

I will talk to my tools supplier to see what else I may need.

I may have to send them a board to test the probe with.

I will likely send them my RT1050-EVK, since it is not supported by the current SDK.

Thanks

Tom

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BlackNight
NXP Employee
NXP Employee

Hi Tom,

yes, you should remove J32 and J33 (see MCUXpresso IDE V10.1.0 with i.MX RT1052 Crossover Processor | MCU on Eclipse). It could work without this, but I have found depending on what the OpenSDA circuit does, it is better to  have it isolated.

I hope this helps,

Erich

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