18f4431 problems

jos smans

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Nov 5, 2023, 9:36:01 AM11/5/23

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Hello, I have a problem by programming a pic 18f4431. When i make a verry simple program blink a led ,jaledit accept the HEX program, but ,when i put it in pic, error occurs on my pickit3"Programming failed at Program Memory 0x000000"

I also I attempt a sample from jalib directory"18f4431_blink_HS.jal"with the same error.

Can i have a litlle help?

Thanks

Evan Venn

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Nov 5, 2023, 11:03:06 AM11/5/23

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Can you share what programming software you are using with your PK3?

I am the developer of PICKitPlus and we have tested this chip family.

Evan

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Sent: 05 November 2023 13:06
To: jallib <jal...@googlegroups.com>
Subject: [jallib] 18f4431 problems

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jos smans

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Nov 5, 2023, 1:37:42 PM11/5/23

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hi EvanVenn

I use software Pickit 3V 3.10 , and also jaleditV2. If PickitPlus is a newer and better program, were can i download it?

Jos.

Op zondag 5 november 2023 om 17:03:06 UTC+1 schreef Evan Venn:

Rob CJ

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Nov 6, 2023, 3:25:07 AM11/6/23

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Hi Jos,

The PICKitplus software is software you need to purchase. If you use a newer PIC you need it. Your PIC is not so new so it should be possible to program it with the old PICKit software.

Even with PICKitplus I got sometimes the same error that you mentioned. I have two Chinese copies of the PICKit3 and one often gives this error and the other does not.

There are some options you can try that worked for me:

Put decoupling capacitors close to your PIC.
Use IPE from MPLABX. For some reason that also solved the problem (maybe they use another programming algorithm). Note that you need to switch your PICKit3 then to MPLABX mode.

Kind regards,

Rob

Van: jal...@googlegroups.com <jal...@googlegroups.com> namens jos smans <sman...@gmail.com>
Verzonden: zondag 5 november 2023 19:37
Aan: jallib <jal...@googlegroups.com>
Onderwerp: Re: [jallib] 18f4431 problems

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Evan Venn

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Nov 6, 2023, 3:40:15 AM11/6/23

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www.pickitplus.co.uk

Re getting errors from specific clone programmers. If we can isolate or reproduce these errors then we can resolve - at the moment we cannot reproduce.

Evan

From: jal...@googlegroups.com <jal...@googlegroups.com> on behalf of jos smans <sman...@gmail.com>

Sent: Sunday, November 5, 2023 7:37:41 PM
To: jallib <jal...@googlegroups.com>
Subject: Re: [jallib] 18f4431 problems

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Zet Weeh

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Nov 6, 2023, 4:08:43 AM11/6/23

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Hi Jos

I think it isn't a microprocessor problem.

Did you use a new PICKit3 or use it with MPlab?

Because you can't load a program and seeing the code of the error-message I think the PICKit3 has the firmware for MPlab

and you wanna use the stand-alone version.

Do this to load the stand-alone firmware:

1 Start the PICKit3

2 Open 'Tools' - Download PICKit Operating system'

3 Now 'Open PK 3 OS file'

4 Go to C:\Program files\Microchip|PICKit3

5 Click: 'PK30SVO200005.hex'

6 Click 'Open'

7 Follow the screen

8 When PICKit3 is ready: close and restart

Succes

Peter

Op zondag 5 november 2023 om 15:36:01 UTC+1 schreef jos smans:

Rob CJ

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Nov 6, 2023, 5:30:32 AM11/6/23

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Hi Peter,

If you use the Pickit3 software when the pickit programmer is in mplax mode, it will mention that.

As far as I know it will not give the programming error that was described by Jos.

Met vriendelijke groet,

Rob Jansen

From: jal...@googlegroups.com <jal...@googlegroups.com> on behalf of Zet Weeh <zet....@gmail.com>
Sent: Monday, November 6, 2023 10:08:42 AM
To: jallib <jal...@googlegroups.com>
Subject: [jallib] Re: 18f4431 problems

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Evan Venn

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Nov 6, 2023, 5:36:46 AM11/6/23

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Agree. I know low level details of the software and the programming process. At the moment we have no open support tickets.

Evan

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Sent: Monday, November 6, 2023 11:30:27 AM
To: jal...@googlegroups.com <jal...@googlegroups.com>
Subject: Re: [jallib] Re: 18f4431 problems

To view this discussion on the web visit https://groups.google.com/d/msgid/jallib/GVXP195MB1637F3EA4A8D4F3D2DC0D03CE6AAA%40GVXP195MB1637.EURP195.PROD.OUTLOOK.COM.

vsurducan

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Nov 6, 2023, 6:14:56 AM11/6/23

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It might be a hardware problem. Have you checked twice the connectoin between programmer and pic? Short cable length (20-30cm). GND cables between clock and data signals.Do you have correct programming and supply voltage? Use HV programming mode not LVP.

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jos smans

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Nov 6, 2023, 6:47:34 AM11/6/23

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Hello everyone,

I have programmed the same "blink a led" with Pic18f4455. By 18f4455 it works completely. so i think it isn't the power, gnd .Maybe a software problem?

Jos

Op maandag 6 november 2023 om 12:14:56 UTC+1 schreef vsurducan:

rob...@hotmail.com

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Nov 6, 2023, 12:33:01 PM11/6/23

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Hi Jos,

It may still be a power problem since not all PICs are the same. Did you try using IPE from MLPABX?

Kind regards,

Rob

Op maandag 6 november 2023 om 12:47:34 UTC+1 schreef sman...@gmail.com:

Zet Weeh

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Nov 6, 2023, 5:07:11 PM11/6/23

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Hi Jos

Forget my advice about the firmware because the PICKit3 works with 18F4455.

Are you sure that 'Hold in reset' is disabled (you find it in one of the tabs of the menu).

And control the connections of the resistor and capacitor for pin 1.

When pin1 has the wrong voltage you can't load the hex-file.

Bye Peter

Op maandag 6 november 2023 om 18:33:01 UTC+1 schreef rob...@hotmail.com:

jos smans

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Nov 9, 2023, 8:58:29 AM11/9/23

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hi everyone ,

I have programmed pic 18f4431 successfully . I bought a new breadboard ,but not a good one. after measuring the power on MCLR ,i found the power was too litle. (a bad Breadboard) After programming with my old breadboard ,everyting was ok.

Thanks everyone for suggestions and help

Jos

Op maandag 6 november 2023 om 23:07:11 UTC+1 schreef Zet Weeh:

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