Problem with enumeration and EasyHID

[jizyjuice]

No im not, im using melabs pic programmer. Should I take out that define statement?

[jizyjuice]

Okay, Finally I got the thing to show up on the pc! A 1k pull up resistor needs to be put on D+ and Vsub!! I was under the assumption that there was an internal pull up resistor there. Maybe I didn't configure that in the code.

Well Thanks for everyones help so far.

The windows doesnt recognize the device tho. So it wont enumerate as an HID device yet.

[Darrel Taylor]

There are internal pull-ups. And EasyHID configures them for Full-Speed, so you shouldn't need external ones.

Did you use all the configs from post #11?

In particular _VREGEN_ON_2L.

Your original configs had that turned OFF, just want to make sure it's turned ON now.

Should I take out that define statement?

It doesn't really matter, it's fine even if not using a bootloader. But if you were using a bootloader it may have caused problems with the config settings, so I thought I'd ask.

[jizyjuice]

I used the config code from post 11, but _BORV_2_2L and _FCMEN_OFF_1H dont seem to be define for the 2550, so I took them out.

Is there another file i need to include to get these fuses to work correctly?

[Darrel Taylor]

You still have MPASM 5.02 so it's _FCMEM_OFF_1H
That'll change after you upgrade MPASM.

_BORV_2_2L is defined for the 2550. I can see it in the .LST file in your .ZIP in post #10
Can't image why there would be a problem with it. But since it's in the same line as _VREGEN_ON_2L, it makes me wonder if there's something else wrong with that line which caused the error.

[jizyjuice]

I looked at the list file and it should be _BORV_21_2L. So, now I've set the fuses correctly, nothing happens now. Windows doesnt pop up with anything, not even usb device unrecognized. I have no idea what could be wrong

[jizyjuice]

I set the fuses finally. The brown out reset voltage fuse is _BORV_21_2L, found this looking through the lst file. Now nothing seems to work, not even simple LED flashes. I have no idea what is going on.

[Darrel Taylor]

Now that you get "nothing". It seems like FCMEM_OFF is doing it's job, and now it's not running on the internal oscillator.

I think your problem might be the 33pf caps on the crystal. Or a bad/wrong crystal.

The datasheet shows that it should be around 22pf for 20mhz.
With FCMEM_ON, the chip will switch over to the internal oscillator if the primary isn't working. You'll see LED's blink, but it's not the right frequency for USB to work.


___________
DT

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