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Helpful ReplyHot!PICkit 4 detecting residual voltage from target

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EG Martins
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2019/12/09 05:56:25 (permalink)
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PICkit 4 detecting residual voltage from target

Hi.
 
  I'm using PICkit4 do program a PIC16F15345 and each time I try to debug with power supplied by PIC it states "PICkit 4 detecting residual voltage from target".
  This problem does not occur with ICD4.
This was reported in another post, but, no one gave a real solution.
This makes me loose around 20-30 seconds of time in each programming/debugging (sometimes more).
 
I've analysed the 5 pins of programming (MCLR,VDD,GND,PGD,PGC) and the problem is:
- MCLR has 3V after each debug. I do not know why.
- Before the next programming MPLABX checks residual voltage and finds (in my board) a 1.05V, because MCLR is still at 3V, and in my schematic, with a pull up 10k resistor in MCLR, generates a 1.05V at VDD. (I tried to reduce with a 1k resistor between VDD and GND, but it is not enough).
  Is there a solution for this, or, we must wait that Microchip change the firmware of PICkit4/MPABX to switch off MLCR after each STOP and also before starting analysing residual voltages.
#1
KTrenholm
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Re: PICkit 4 detecting residual voltage from target 2019/12/09 07:03:58 (permalink) ☄ Helpfulby EG Martins 2019/12/09 07:16:01
4 (1)
This was supposed to be fixed in MPLAB X 5.15 last I heard (I had the same problem back in May) but as of 5.20 I was still seeing the problem.  I haven't tried it in 5.30 yet.  What version of MPLAB X are you on?
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EG Martins
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Re: PICkit 4 detecting residual voltage from target 2019/12/09 07:17:16 (permalink)
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Mine is 5.15. I will ask for an update. 
Thank you.
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EG Martins
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Re: PICkit 4 detecting residual voltage from target 2019/12/09 09:27:00 (permalink)
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Solved in 5.30.
Thank you again
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