HID USB on 18F87J50

[pedja089]

I try similar thing, but same result.
So is it possible there are some bug in PBP for this PIC family?

[Darrel Taylor]

I'm looking into it too.
Trying to build a board.

But first I have to ask ...
Do you have VDD (3.3V) tied to VUSB?
There's no internal regulator on those chips.

[cncmachineguy]

I can't speak for Pedja's board, But I am pretty sure Walter is using the PIC_LCD3310. If so that DOES show Vusb tied to 3.3V on the schamatic.

[ScaleRobotics]

Thanks Darrel. I had some weird behavior in my computer. PBP3 kept defaulting to MPASMX, no mater how I set it, I'd check back, and it was set to MPASMX. So after removing the Microchip directory, and re-installing MPLAB 8.76, I was able to get PBP to settle on C:\Program Files\Microchip\MPASM Suite . Now CDC and HID work for the 18F67J50 with PBP3.0! Thanks for routing that out for us!

[mister_e]

I have to say I'm glad for Melabs it's not another Microchip twist who had to implement another .HWLIB thing.

Finger crossed for the next USB pic though... BTW, it's about time Microchip release USB3 AND/OR Thunderbolt.

[pedja089]

Darrel,
I try your DT_HID260, and it work on first attempt. It's very simple to use.
But I have question.
If I want to use 64 byte, #define USB_EP0_BUFF_SIZE should be 64, is that correct?
Thanks

[Darrel Taylor]

No, endpoint 0 is for setup and control transfers. You should not change that.
And you should not change anything inside the DT_HID260.pbp file.

Set the report sizes with the defines...

;--- Setup USB -------------------------------------------------------------
INCLUDE "DT_HID260.pbp"
DEFINE USB_VENDORID    6017
DEFINE USB_PRODUCTID   2000
DEFINE USB_VERSION     1
DEFINE USB_VENDORNAME  "Darrel Taylor"
DEFINE USB_PRODUCTNAME "DT_HID"
DEFINE USB_SERIAL      "001"
DEFINE USB_INSIZE      64   ;  IN report is PIC to PC (8,16,32,64)
DEFINE USB_OUTSIZE     16   ; OUT report is PC to PIC
DEFINE USB_POLLIN      10   ; Polling times in mS, MIN=1 MAX=10
DEFINE USB_POLLOUT     10

[ScaleRobotics]

I have installed MPLAB8,76. Now I get CDC to work on 2.60C, but I don't get the same file to work with PBP3.

But I am wondering where PBP3 is looking for MPLAB or MPASM? 2.60 allowed you to select the location for PBP, and it also allowed you to show it where the assembler was located. In PBP3 I get this option:



How am I supposed to enter them both? Or are they really supposed to be in the same place??

[Darrel Taylor]

In the Start menu, go to All Programs > PBP3 from melabs > MPASM-MPLAB setup.
It allows you to set the path to MPASM.