Sasha Posted April 13, 2005 Author Report Share Posted April 13, 2005 I checked connections with meter and also with magnifiing glas. Didn`t find any foulty. I put old (20MHz) crystal again to see will I get those inproper signals or a LED fleshing. But this time nothing!!! I expected to get flashing like first time??? All I done is swap 20MHz crystal with 10 MHz and reprogrammed the PIC again with bootstrap loader. I expected same problems but this time even worse. No any signal. I also tried to burn old PIC16F877 with proper .hex but it seems demaged since blank check fails, and progremmer gets pretty hot. I supposet that means it is not good.Istarted to make new THE THIRD midibox again. The PCB (also made with photo technique) is slightly better but I am sure that`s not a problem. I don`t know what to do else than try to make everything from scratch. Mayby is problem with some micro leyer of soldering paste. I cleaned everything with alcohol after I made PCB, dont know where could be the problem. This project really made me feel miserable and stucked! Quote Link to comment Share on other sites More sharing options...
TK. Posted April 13, 2005 Report Share Posted April 13, 2005 You wrote that your programmer gets hot - could it be that it is damaged for some reason and fries the PICs? (makes them unusable)What are the results of the IC-Prog hardware checks? (see the MBHP_JDM page for some instructions) I know that you don't use the JDM, but the measuring results should be the same.This project really made me feel miserable and stucked!Moaning doesn't really help you - there are a lot of people who would burn and especially test a PIC18F for free, even SmashTV sells preburned PIC18F452 for just US $9 + complete kits with all the components - and he doesn't do this to earn money, but to give MIDIbox Newbies a smooth start.Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Sasha Posted April 13, 2005 Author Report Share Posted April 13, 2005 You wrote that your programmer gets hot - could it be that it is damaged for some reason and fries the PICs? (makes them unusable)When I put PIC16F877 programmer gets hot but with 18F452 it is OK. I read out the data and it looks perfectly OK. So I am almost sure bootstrap loader is in it.Moaning doesn't really help youYou right about this, but all this tooked so much time and I feel like I`m not moving forward. Nobody seams knows nothing here in Belgrade about it. Not the one shop worker ever heard about diferent types of crystal. I printed page you gave me but they are still in wonder. Crazyness!there are a lot of people who would burn and especially test a PIC18F for freeDo you think I should post another topic to ask some more direct help?even SmashTV sells preburned PIC18F452 for just US $9 + complete kits with all the componentsI already have few sets of new parts and PCBs. Only part I suspect now is crystal. I don`t know about situation now but not long time ago you couldn`t order nothing over the net from here, just books. Beacuse of the froads nobody wanted to accept orders from Serbia. We are shitty country, don`t you know that? You`ve seen it on TV surely. Maybe the only thing I can do is to send cash to somebody to buy me a right crystal? Anyway, thank you very much for your effort and time helping me here. I am impresed with your will and enthusiasm! There is nothing in a world I wanted to make more than midibox. And I am still wondering how is so better than any comercial product on a market? I will finish my baby somehow! Some day... Quote Link to comment Share on other sites More sharing options...
TK. Posted April 13, 2005 Report Share Posted April 13, 2005 Do you think I should post another topic to ask some more direct help?If no other volunteer can be found, then just write me a mail and I will send you my postal addressOr you try to contact Nenad, he is also from Serbia and has successfully built a very cool MIDIbox (see the MIDIbox Gallery for his email address)Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Sasha Posted April 13, 2005 Author Report Share Posted April 13, 2005 I checked Smash TV. They also not sending to Serbia! Suprised?Or you try to contact Nenad, he is also from SerbiI know Nenad, I meet hem especially because of the midibox. Problem with Nenad is that he don`t know much of it. Some other guy made electronic for him. And that other guy have a kid, and no time at all, and bla, bla... I told Nenad I will pay him just to help me. But nothing... Quote Link to comment Share on other sites More sharing options...
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