CDC Assistance

[mister_e]

Working for me here with a 18F2455.

High likely an hardware problem, device programmer problem, or both.

Install USBDeview, with it, uninstall the generated PIC18 USB CDC device, then reinstall the "driver".

[ricgar]

Working for me here with a 18F2455.

High likely an hardware problem, device programmer problem, or both.

Install USBDeview, with it, uninstall the generated PIC18 USB CDC device, then reinstall the "driver".

How would i know if it is a device or programmer problem (I'm using a JDM programer) http://www.instructables.com/id/Busi...IC-Programmer/
and using a winPIC programmer software.

And for the use of USBDeview, there is nothing there with regards to PIC18.....

Thanks

[ricgar]

Also just thinking would there be a possible issue with the cdc code if the chip has less memory? since the PIC18F2450, the one i am using, has like half the memory of the PIC18F2455, the one that is working on your side?

[mackrackit]

How would i know if it is a device or programmer problem (I'm using a JDM programer)

Can you make the chip do anything, blink an LED?
Some JDMs have trouble with 18Fs. JDM is not the recommended one here. To many troubles.

[ricgar]

Any other suggested DIY programmer?

[mister_e]

Not really, the only cheap one I would suggest is MicroChip PICKIT 2... but this is not a DIY.

Maybe your Device programmer Software have an option to program or not program the configuration fuses? The led blink is usually a good start.

[mackrackit]

Any other suggested DIY programmer?

Go with the PICKIT2. By the time you get the parts for a DIY kit, time spent trouble shooting why it does not work, visits to your therapist or local bartender. The $35 USD plus shipping is looking pretty good.

[mister_e]

I don't know if this could help in case it's a device programmer issue...
http://members.aon.at/electronics/pic/picpgm/