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'[PIC] How to stop a 16f648 with wisp628'
2007\02\17@112603 by Marcel Buijs

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Thanks for the response,also sorry for the fast typing.

The Pic = 16F648.

The program will light a full color led on ports RB4, RB5, RB6.
Programm runs on internal clock 4Mhz.
The show is great, only a little bit to fast (very fast!)

I want to change the delay.

Indeed, Making port Ra5 LOW the programm stops.

But I want to change the delay.
therefor I have to erase and load the new programm.

The only problem is that I use the Wisp, and it's using also RB4 and RB6.

When I want to erase the program I've got the next error:

Error:
I/O operation timed out.

I used Bumble bee, becouse I coudn't get it xwisp or Wisp working on XP.
Asked wouter 2 times for help before, but he didn't respond.

So my question:
How can I erase a programm with wisp628 hardware while
a progamm is running on 2 ports with be used by the Wisp628 AND running
programm.

Dutch:
Ik kan een programma niet erasen als de poorten gebruikt worden door het
programma (als output).
Wisp628 maakt ook gebruik van deze poorten (als input).
Ik krijg steeds een I/O error.

Als ik het programma kan stoppen zonder MCLR te gebruiken, dan hoop ik dat
ik dan geholpen ben.
16F648 draait op internal clock, dus hier is ook weinig mee te doen denk ik.


Thanks,

Marcel



-----Oorspronkelijk bericht-----
Van: spam_OUTpiclist-bouncesTakeThisOuTspammit.edu [.....piclist-bouncesKILLspamspam@spam@mit.edu]Namens
Peter van Hoof
Verzonden: zaterdag 17 februari 2007 14:43
Aan: Microcontroller discussion list - Public.
Onderwerp: Re: [PIC] How to stop a 16f64 with wisp628


Marcel Buijs Marcel.BuijsspamKILLspamwxs.nl wrote:
>I've a question.
>How can i stop (erase) a program with the wisp628 ?

>I've make a timer too small, I can't stop the programm.

>I've used the rb4 till rb6.
>The same pins wisp628 uses to programm.

>Marcel.

Hi Marcel,

There doesn't seem to be a 16f64 on the Microchip website
Do you mean the 16f84?

If this is the case all you need to do is stop the oscilator to
stop the device from running.

Peter van Hoof

2007\02\17@114954 by Rob Hamerling

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Marcel Buijs wrote:

> How can I erase a programm with wisp628 hardware while
> a progamm is running on 2 ports with be used by the Wisp628 AND running
> programm.

The problem is not that the ports used for (re)programming are
configured as output, but that these ports are too heavily loaded with
the LEDs for the Wisp628 to function properly. You'll need to disconnect
the LEDs to be able to reprogram the PIC. You could connect the LEDs to
other ports, or use jumpers to temporary disconnect 'm for
re-programming.

Regards, Rob.


--
Rob Hamerling, Vianen, NL (http://www.robh.nl/)

2007\02\17@121400 by Wouter van Ooijen

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> I coudn't get it xwisp or Wisp
> working on XP.
> Asked wouter 2 times for help before, but he didn't respond.

the queston might have been to difficult, badly worded, not about the
Wisp628, or otherwise impossible to answer while in 'recreational mode'.
Rereading your mails: a bit of all. (and you did have my telephone
number)

> So my question:
> How can I erase a programm with wisp628 hardware while
> a progamm is running on 2 ports with be used by the Wisp628
> AND running programm.

you can't re-program and run a program at the same time

for ICSP you must make sure the other hardware (not the PIC) does not
interfere with RB6/RB7 and with /MCLR

> Dutch:

better stick to English here

comment on the Dutch text: internal clock and internal reset are two
independent things.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu



2007\02\17@122730 by Jan-Erik Söderholm

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Marcel Buijs wrote :

> I used Bumble bee, becouse I coudn't get it xwisp or Wisp working on XP.

For an easy-to-use tool, download XWisp2 from ww.robh.nl.

It will not help with the LEDs loading the PGC/PGD lines,
but it's a nice tool for the WIsp628...

Jan-Erik.

2007\02\17@131719 by Marcel Buijs

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face
Dear Jan-Erik,

after removing the the transitor with his Rb=10KOhm, I can change the Pic's
program again.

thanks for the tip.

MArcel.

-----Oorspronkelijk bericht-----
Van: .....piclist-bouncesKILLspamspam.....mit.edu [EraseMEpiclist-bouncesspam_OUTspamTakeThisOuTmit.edu]Namens
Jan-Erik Soderholm
Verzonden: zaterdag 17 februari 2007 18:27
Aan: Microcontroller discussion list - Public.
Onderwerp: Re: [PIC] How to stop a 16f648 with wisp628


Marcel Buijs wrote :

> I used Bumble bee, becouse I coudn't get it xwisp or Wisp working on XP.

For an easy-to-use tool, download XWisp2 from ww.robh.nl.

It will not help with the LEDs loading the PGC/PGD lines,
but it's a nice tool for the WIsp628...

Jan-Erik.

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