HID USB on 18F87J50

[ScaleRobotics]

Well, I am not having any luck over here either. Here is my try at using DT_HID260. I have been successful in getting it running on another J chip, the PIC18F47J53, and looking at the two data sheets, the USB doesnt seem to differ much between these two chips. Except on one the USB data memory is below the buffer descriptors, and the other the USB data memory is above the buffer descriptors. The DEV files seem to point to the USB buffer descriptors (67J50 here): USBMEMORYADDRESS Con $400 ' USB RAM starts here

Here is my code (that does not work)

'***************************************************************************
'*  Name    : BasicUSB.pbp                                                 *
'*  Author  : Darrel Taylor                                                *
'*  Notice  : Copyright (c) 2009                                           *
'*  Date    : 7/23/2009                                                    *
'*  Version : 1.x ' Modified by scalerobotics                              *
'*  Notes   : I tried to edit it to work on a PIC18F67J50 and I failed     *
'*          : Worked great on other chips, but I can't seem to figure out  *
'*          : the problem for PIC18F67J50. Board is PIC_LCD3310, which does*
'*          : work with the USB bootloader,so probably not a hardware issue*
'***************************************************************************
'DEFINE LOADER_USED 1
'DEFINE RESET_ORG 1000h ' For Microchip USB Bootloader

;--- if you un-comment these, you must comment the ones in the .inc file ---
ASM  ; 18F2550/4550, 20mhz crystal
;   __CONFIG    _CONFIG1L, _PLLDIV_5_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
;   __CONFIG    _CONFIG1H, _FOSC_HSPLL_HS_1H
;   __CONFIG    _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
;   __CONFIG    _CONFIG3H, _PBADEN_OFF_3H
;   __CONFIG    _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L
ENDASM

;ASM  ; 18F13K50/14K50  Only 12mhz crystal can be used for USB
;    CONFIG CPUDIV=NOCLKDIV ; CPU runing at full speed
;    CONFIG USBDIV=OFF ; Low speed USB clock diviser disabled, not used here
;    CONFIG FOSC=HS ; Use of High Speed crystal oscillator
;    CONFIG PLLEN=ON ; Enable PLL multiplier, 12Mhz oscilator x 4
;    CONFIG PCLKEN=ON ; Primary clock source is enabled
;    CONFIG FCMEN=OFF ; Failsafe clock off
;    CONFIG IESO=OFF ; Oscillator switchover mode disabled
;    CONFIG WDTEN=ON ; Watchdog timer on
;    CONFIG WDTPS=512 ; Watchdog divider is 512
;    CONFIG MCLRE=OFF ; Disable MCLR pin, enable RC3
;    CONFIG STVREN=ON ; Stack full/underflow will cause reset
;    CONFIG LVP=OFF ; Low voltage programming disabled
;    CONFIG BBSIZ=OFF ; 512kW block boot size
;    CONFIG XINST=OFF ; Extended instruction mode disabled
;ENDASM
#config         ;pic18F67J50 on Olimex PIC_LCD3310 usb board
    CONFIG PLLDIV = 5    ;for 20 mhz crystal
    CONFIG XINST = OFF
    CONFIG STVREN = off    ;stack overflow reset
    CONFIG WDTEN = OFF    ;added
    CONFIG CP0 = OFF    ;added
    CONFIG IESO = OFF    ;added
    CONFIG FCMEN = OFF    ;added
    CONFIG CCP2MX = DEFAULT    ;added
    CONFIG WDTPS = 32768 
    CONFIG CPUDIV = OSC1  ;DIVIDE BY 1 MODE
    CONFIG FOSC = HSPLL
    CONFIG MSSPMSK = MSK5   ;add
#endconfig

DEFINE OSC 48
clear
OSCTUNE.6 = 1  ' Enable PLL for 18F87J50 family

;--- Setup Interrupts ------------------------------------------------------
INCLUDE "DT_INTS-18.bas"     ; Base Interrupt System

ASM
INT_LIST  macro    ; IntSource,          Label,  Type, ResetFlag?
        INT_Handler   USB_Handler
    endm
    INT_CREATE               ; Creates the interrupt processor
endasm

;--- 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      32   ;  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

; --- Each USB LED is optional, comment them if not used ----
;DEFINE USB_LEDPOLARITY 1       ; LED ON State [0 or 1]  (default = 1)
;DEFINE USB_PLUGGEDLED  PORTB,0 ; LED indicates if USB is connected
;DEFINE USB_TXLED       PORTC,2 ;  "      "     data being sent to PC
;DEFINE USB_RXLED       PORTC,1 ;  "      "     data being received from PC

OutCount    VAR  WORD : OutCount = 0
Value       VAR  WORD
X           VAR  WORD

;--- Setup ADC -------------------------------------------------------------
DEFINE ADC_BITS 10 ; Number of bits in ADCIN result
'       Configure ADC 
'       =============
'   See thread http://www.picbasic.co.uk/forum/showthread.php?t=11128&highlight=18f67j50
'   for more information about setting analog, and the WDTCON.4 on this chip
WDTCON.4 = 1   ' Switch to Alternate SFR
ANCON0_ALT = %10011110
           '  -xx------ Not Implemented
           '  1--1111-- AN7, & AN<4:1> = Digital
           '  -------0- AN0 = Analog

ANCON1_ALT = %11111111
           '  11111111- AN<15:10> = Digital

WDTCON.4 = 0    ' Back to Default SFR
 
ADCON0 = %00000001
       '  0-------- VCFG1, Vref- 0 = AVss (1=AN2)
       '  -0------- VCFG2, Vref+ 0 = AVdd (1=AN3) 
       '  --0000--- CHS<3:0>, Channel select -- 0
       '  ------0-- Go/Done, don't care for now
       '  -------1- ADON, Enable ADC
                  
ADCON1 = %10000111
       '  1-------- ADFM, Right justified result
       '  -0------- ADCAL, Normal A/D converter operation
       '  --000---- ACQT<2:0>, A/D Aquisition time = 0 Tad
       '  -----111- ADCS<2:0>, A/D conversion clock = FRC
;--- The Main Loop ---------------------------------------------------------
TRISD = 0
PORTD.0 = 1   'turn on g sensor
PORTD.1 = 0   'select scale for g sensor
PORTD.2 = 0   'select scale for g sensor


TRISA = %00000111   'set porta.0, 1, and 2 as inputs
TRISB = 0
CM1CON1 = 7   'CM1CON in PBP3 as CM1CON1
CM2CON1 = 7   'CM2CON in PBP3 as CM2CON1
TRISC = 0
TRISE = 0
pause 100
;--- The Main Loop ---------------------------------------------------------
Main:
    FOR X = 0 to 1000           ; Check for incomming USB data while pausing
@     ON_USBRX_GOSUB  _HandleRX
      PAUSE 1
    NEXT X
    
    ADCIN 10, Value
    OutCount = OutCount + 1
    ARRAYWRITE USBTXBuffer,["AN0=",DEC Value," -",DEC OutCount,"  "]
    IF Plugged THEN GOSUB DoUSBOut     ; only send when USB is connected
GOTO Main

;---- This just sends the received packet back to the PC -------------------
HandleRX:
    ARRAYWRITE USBTXBuffer,[STR USBRXBuffer\USBBufferSizeRX]
return

[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

[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.