Cheaper alternative to PIC18F2550

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Re: Cheaper alternative to PIC18F2550

Postby kooroshi60 » Wed Oct 17, 2012 10:46 pm

Not having found a solution for this issue I decided to upload the circuit schematic of my interface maybe there will be an error in it.
Is this schematic correct ?
I used the schematics you had provided for PIC18f14k50 and Syntex interface to draw this one.
Regards
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Wed Oct 17, 2012 11:07 pm

At least you missed resistors on pins 4 and 7 of the PIC, R2 must be 4k7 and R1 is not needed.
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Re: Cheaper alternative to PIC18F2550

Postby Maylord.war » Wed Oct 17, 2012 11:29 pm

Sorry for my ignorance, but which is the utility of sending multiple sysex message?

Thanks :oops:
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Re: Cheaper alternative to PIC18F2550

Postby kooroshi60 » Thu Oct 18, 2012 12:59 pm

I did the corrections but it still doesn't work properly.
I'm pretty much disappointed with 14k50 so far.
Thank you anyway for your guides.
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Re: Cheaper alternative to PIC18F2550

Postby operators123 » Sat Jul 20, 2013 12:47 pm

Do we have anymore information on the PIC18F14K50?
I've bought it not realizing it has less pins than the PIC18F2550 and I'm trying to use it with the latest 56 inputs design. Will this work or not?
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Sat Jul 20, 2013 12:52 pm

PIC18F14K50 and PIC18F2550 are not pin compatible so you cannot replace one with another.
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Re: Cheaper alternative to PIC18F2550

Postby operators123 » Sat Jul 20, 2013 12:55 pm

What if I used this schematic in place, viewtopic.php?f=3&t=702
Would this work with the latest 56 inputs design?
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Sun Jul 21, 2013 1:18 pm

The schematic in this topic will work with any device producing a signal with MIDI timing.
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Re: Cheaper alternative to PIC18F2550

Postby Valdemarus » Mon Jun 19, 2017 10:38 am

Дмитрий, прошивка эта, указанная Вами. Плату всю уже перепроверил. Попробую другой PIC.
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