Image is not scrolling using PIC 18f4620

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el337
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Image is not scrolling using PIC 18f4620

Post by el337 » Mon Nov 07, 2011 10:02 pm

Hi,

I have followed the fantastic instructions on http://www.instructables.com/id/The-One ... ith-conve/ to build a pov display. However, I could not get hold of a PIC 18f4680 microcontroller so I used the PIC 18f4620. Everything seems to be working fine but when I display something, designating in the code PIC 18f4620 and using Config OSC = INTIO67 no right to left scrolling occurs the image is just static.

I would really appreciate any help.

Thanks!
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brad
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Re: Image is not scrolling using PIC 18f4620

Post by brad » Thu Nov 10, 2011 11:52 am

That does sound very strange. I don't suppose you could upload a photo of what you do actually get?
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el337
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Re: Image is not scrolling using PIC 18f4620

Post by el337 » Thu Nov 17, 2011 5:58 am

Sorry for the late reply as I was moving my pov display to take a picture I knocked it off the desk! Will get back to you as soon as I have fixed it!!
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Re: Image is not scrolling using PIC 18f4620

Post by brad » Fri Nov 18, 2011 12:02 pm

Careful!
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Re: Image is not scrolling using PIC 18f4620

Post by el337 » Sat Nov 26, 2011 8:34 am

Hi Brad, while I was rebuilding my pov display I suspected that the hall effect sensor was not working properly ( cheap off ebay) so I bought a better model of sensor the Allegro A1203. All is now working well and the image is scrolling!

I would like to thank you very much for taking the time to post a great project!

On to the next one!
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Re: Image is not scrolling using PIC 18f4620

Post by sdudley » Sat Nov 26, 2011 11:04 am

el337 wrote:Hi Brad, while I was rebuilding my pov display I suspected that the hall effect sensor was not working properly ( cheap off ebay) so I bought a better model of sensor the Allegro A1203. All is now working well and the image is scrolling!

I would like to thank you very much for taking the time to post a great project!

On to the next one!
Interesting... I bought a bunch of 7805 regulators on ebay and they were all bad. Well that is, I have only used 5 of them and all 5 are bad so I suspect the whole lot is bad. I am not willing to build circuits using the rest of them!

Stacy
Any time you deviate from sequential consistency, you increase the complexity of the problem by orders of magnitude.
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brad
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Re: Image is not scrolling using PIC 18f4620

Post by brad » Sat Nov 26, 2011 12:41 pm

el337 wrote:Hi Brad, while I was rebuilding my pov display I suspected that the hall effect sensor was not working properly ( cheap off ebay) so I bought a better model of sensor the Allegro A1203. All is now working well and the image is scrolling!

I would like to thank you very much for taking the time to post a great project!

On to the next one!
Great to hear that it is working!

Things are very quiet for me at the moment as far as electronic projects. I am knee deep in programming for the iphone - Once I have my first app out there, I should get back to some good 'ol pic programming :)
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Re: Image is not scrolling using PIC 18f4620

Post by sdudley » Sat Nov 26, 2011 3:48 pm

brad wrote: Great to hear that it is working!

Things are very quiet for me at the moment as far as electronic projects. I am knee deep in programming for the iphone - Once I have my first app out there, I should get back to some good 'ol pic programming :)
I almost have my first app finished. It's not even close to being as extensive as your's, but I'm learning a lot. Honestly I miss programming in assembly!

Stacy
Any time you deviate from sequential consistency, you increase the complexity of the problem by orders of magnitude.
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brad
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Re: Image is not scrolling using PIC 18f4620

Post by brad » Sat Nov 26, 2011 9:09 pm

Ahh the good 'ol days of assembly!

Life was so much simpler back then :)
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Re: Image is not scrolling using PIC 18f4620

Post by sdudley » Sun Nov 27, 2011 7:41 am

brad wrote:Ahh the good 'ol days of assembly!

Life was so much simpler back then :)
Yeah, I guess you could say you have been disassembled! :wink:

Stacy
Any time you deviate from sequential consistency, you increase the complexity of the problem by orders of magnitude.
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brad
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Re: Image is not scrolling using PIC 18f4620

Post by brad » Sun Nov 27, 2011 1:41 pm

sdudley wrote:
brad wrote:Ahh the good 'ol days of assembly!

Life was so much simpler back then :)
Yeah, I guess you could say you have been disassembled! :wink:

Stacy
Drum roll please!
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