Search found 5 matches

by Gokussj5okazu
Sat Sep 28, 2013 9:21 pm
Forum: Microchip
Topic: Pic - K150 ICSP Programmer (HCDVBD0002)
Replies: 132
Views: 253150

Re: Pic - K150 ICSP Programmer (HCDVBD0002)

Ok, I checked it out and I'm getting right around 13.5V on VPP during programming. Both from the ICSP header and the ZIF socket. On the breakout boards for both chips I only have a smoothing capacitor, and a resistor/LED for testing blinky code. Nothing connected to DAT or CLK.
by Gokussj5okazu
Thu Sep 26, 2013 11:58 pm
Forum: Microchip
Topic: Pic - K150 ICSP Programmer (HCDVBD0002)
Replies: 132
Views: 253150

Re: Pic - K150 ICSP Programmer (HCDVBD0002)

I agree the core issue appears to be the inability to erase the 18F4550. Also, I can erase a 12F629 just fine.

And I connect to my 12F's the same as the 18F's, all through ICSP as they're all SMD packages on breakout boards. Thanks a ton for trying to get this all figured out, I really appreciate it.
by Gokussj5okazu
Wed Sep 25, 2013 9:59 pm
Forum: Microchip
Topic: Pic - K150 ICSP Programmer (HCDVBD0002)
Replies: 132
Views: 253150

Re: Pic - K150 ICSP Programmer (HCDVBD0002)

Ok here's something else I just noticed. I can change and program any value to the EEPROM, but it moves it. For instance, if I change 0000 from 9E back to FF, and then program it, it will give an error during verification that it does not match. If I read it back, 0000 will still read 9E BUT 0001 wi...
by Gokussj5okazu
Wed Sep 25, 2013 4:02 pm
Forum: Microchip
Topic: Pic - K150 ICSP Programmer (HCDVBD0002)
Replies: 132
Views: 253150

Re: Pic - K150 ICSP Programmer (HCDVBD0002)

I am certain the 18F4550 is not faulty. I ordered 3 of them all from MicroChip and they're all doing the same thing. I have them connected in a breakout board and am using ICSP. When I initially connected the last one, which was blank, I was able to read it perfectly and it reported as blank. I chan...
by Gokussj5okazu
Tue Sep 24, 2013 7:23 pm
Forum: Microchip
Topic: Pic - K150 ICSP Programmer (HCDVBD0002)
Replies: 132
Views: 253150

Re: Pic - K150 ICSP Programmer (HCDVBD0002)

I hope you can help me with an issue I'm having with my K150. I can read, erase, and program 12F629's perfectly. No problem at all. However, I really need to program a 18F4550. I can read the 18F4550 just fine. BUT, I can NOT erase it. If I try, it instantly says the chip has been erased, but if I r...

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