Lab X USB

[jimbostlawrence]

Posts moved from here:
http://www.picbasic.co.uk/forum/showthread.php?t=4529
to make a new thread for Jim.


Hi,

I'm trying to get LABXUSB code to work which is a basic USB transmit/receive demo of USB. I get the same list of errors as above.

I've copied the contents of PBP\USB18 into the folder containing the LABXUSB.BAS file. I then open the LABXUSB.BAS file in microcode studio plus, and push F9 to compile it, and still I get the above error list...

Am I missing something very obvious (usual!)? Is there a tick box somewhere?

Best regards, and a belated happy new year to all!

Cheers

Jimbo

The LABXUSB.BAS is listed below:



INCLUDE "LABXUSB.INC"

' NOTE: USBBuffer(0) "aliased here as CMDByte" holds BufferOut(1) output
' from EasyHID.

' For inbound data packets, the value in CMDByte indicates what data the
' host application has requested. For outbound data packets "stuff the PIC
' is sending back", the value indicates to the host what data the PIC is
' returning.

' ************************************************** **********
' * main program loop - remember, you must keep the USB *
' * connection alive with a call to USBService every couple *
' * of milliseconds or so... *
' ************************************************** **********
Main:
' These are enabled only for routines in USBDriverService
' to cause a response when interrupt flag bits are tested
@ BCF PIE2, USBIE ; Disable USB interrupts
@ BSF UIE, ACTVIE ; Enable USB Bus Activity Detect Interrupt
@ BSF UIE, IDLEIE ; Enable USB Idle Detect Interrupt
usbinit ' initialise USB...

ProgramStart:
' GOSUB USB_Interrupts
gosub DoUSBIn
' Find out which command we've received from the USB host
' and process the request.
IF CMDByte = "R" THEN RelayControl
IF CMDByte = "Z" THEN ShowStatus

goto ProgramStart
' ************************************************** **********
' * Control & data gathering routines *
' ************************************************** **********

ShowStatus:
ADCIN 0, Temp ' Read A/D channel 0 into Temp variable

' Load USB buffer with command & data
CMDByte = "A" ' USBBuffer(0) = "A"
USBBuffer(1) = Temp.HighByte
USBBuffer(2) = Temp.LowByte
GOSUB DoUSBOut ' Send data to USB host

GetTemp: ' Read temperature from Dallas 1-wire DS18B20 temp sensor
OWOut DQ, 1, [$CC, $44] ' Skip ROM search & do temp conversion

Wait_Up:
OWIn DQ, 4, [Busy] ' Read busy-bit
if Busy = 0 Then Wait_Up ' Still busy..?, Wait_Up..!
OWOut DQ, 1, [$CC, $BE] ' Skip ROM search & read scratchpad memory
OWIn DQ, 2, [Temp.Lowbyte, Temp.Highbyte]' Read two bytes / end comms

' Load USB buffer with command & data
CMDByte = "T" ' USBBuffer(0) = "T"
USBBuffer(1) = Temp.HighByte
USBBuffer(2) = Temp.LowByte

' Turn ON relay if Temperature is > 25 deg C
' Just an example. Comment this out if not used.
IF (Temp >> 4) > 25 THEN
HIGH LED
ELSE
LOW LED
ENDIF

GOSUB DoUSBOut ' Send data to USB host

CMDByte = "L" ' USBBuffer(0) = "L"
IF LED = 1 THEN ' Read output pin
USBBuffer(1) = "O"
USBBuffer(2) = "N"
USBBuffer(3) = " "
ENDIF

IF LED = 0 THEN ' Read output pin
USBBuffer(1) = "O"
USBBuffer(2) = "F"
USBBuffer(3) = "F"
ENDIF
GOSUB DoUSBOut
GOTO ProgramStart

RelayControl:
CMDByte = "L" ' USBBuffer(0) = "L"
IF USBBuffer(7) = "1" THEN
HIGH LED ' LED or relay ON
' Load ON status into buffer
' This informs the USB host as to relay status
USBBuffer(1) = "O"
USBBuffer(2) = "N"
USBBuffer(3) = " "
ENDIF

IF USBBuffer(7) = "0" THEN
LOW LED ' LED or relay OFF
' Load OFF status into buffer
' This informs the USB host as to relay status
USBBuffer(1) = "O"
USBBuffer(2) = "F"
USBBuffer(3) = "F"
ENDIF
GOSUB DoUSBOut ' Send data to USB host
GOTO ProgramStart

END

[Demon]

I used Darrel's DT_HID260 routine for an 18F4550 and it worked great on my Lab X1:
http://www.picbasic.co.uk/forum/showthread.php?t=5418&page=6&p=80434#post80434



'************************************************* **************************
'* Name : USBLabX1_RH.pbp *
'* Author : Steve Monfette/Darrel Taylor/Demon *
'* Date : Jan 11 2012 *
'* Version : 3.0 *
'* Notes : This is a re-creation of mister-e's USBdemo for DT_HID *
'* : Meant to work with mister-e's GUI *
'* : Modified for Lab X1 *
'* Hardware : PIC 18F4550, 20mhz crystal *
'* : Lab X1 Experimental Board, 9.5V wall adapter *
'* : MeLabs U2 Programmer v4.32 *
'* Software : PIC Basic Pro v2.60C *
'* : MicroCode Studio Plus v2.2.1.1 *
'* : MPASM WIN Assembler v4.02 (mplab tools/MPASM Suite) *
'* PIC mods : plastic USB connector hot-glued onto top of PIC *
'* : D- wired to C4 (pin 23) directly to top of pins *
'* : D+ wired to C5 (pin 24) directly to top of pins *
'* : two 0.1uF ceramic caps in parallel across VUSB and VSS *
'************************************************* **************************
'--- if you use these, you must comment the ones in the .inc file ---
@ __CONFIG _CONFIG1L, _PLLDIV_5_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
@ __CONFIG _CONFIG1H, _FOSC_HSPLL_HS_1H
@ __CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_OFF_2L & _VREGEN_ON_2L
@ __CONFIG _CONFIG2H, _WDT_OFF_2H
@ __CONFIG _CONFIG3H, _CCP2MX_OFF_3H & _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _MCLRE_ON_3H
@ __CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _ICPRT_OFF_4L & _XINST_OFF_4L

DEFINE OSC 48
CLEAR

DEFINE LCD_DREG PORTD ' Set LCD data port
DEFINE LCD_DBIT 4 ' Set starting data bit
DEFINE LCD_RSREG PORTE ' Set LCD register select port
DEFINE LCD_RSBIT 0 ' Set LCD register select bit
DEFINE LCD_EREG PORTE ' Set LCD enable port
DEFINE LCD_EBIT 1 ' Set LCD enable bit
DEFINE LCD_BITS 4 ' Set LCD bus size
DEFINE LCD_LINES 2 ' Set number of lines on LCD
DEFINE LCD_COMMANDUS 2000 ' Set command delay time in microseconds
DEFINE LCD_DATAUS 50 ' Set data delay time in microseconds

;--- Setup Interrupts ------------------------------------------------------
INCLUDE "DT_INTS-18.bas" ; Base Interrupt System
INCLUDE "ReEnterPBP-18.bas" ; PBP Re-entry for external interrupt

ASM
INT_LIST macro ; IntSource, Label, Type, ResetFlag?
INT_Handler USB_Handler
INT_Handler INT_INT, _ToggleLED1, PBP, yes
endm
INT_CREATE ; Creates the interrupt processor
endasm

@ INT_ENABLE INT_INT ; enable external (INT) interrupts

;--- Setup USB -------------------------------------------------------------
INCLUDE "DT_HID260.pbp"

DEFINE USB_VENDORID 6017
DEFINE USB_PRODUCTID 2000
DEFINE USB_VERSION 1
DEFINE USB_VENDORNAME "Mr E/DT/RH"
DEFINE USB_PRODUCTNAME "USBLabX1"
DEFINE USB_SERIAL "001"
DEFINE USB_INSIZE 8 ; IN report is PIC to PC (8,16,32,64)
DEFINE USB_OUTSIZE 8 ; OUT report is PC to PIC
DEFINE USB_POLLIN 10 ; Polling times in mS, MIN=1 MAX=10
DEFINE USB_POLLOUT 10

; --- Each USB status LED is optional, comment them if not used ------------
; --- They can be assigned to any pin, and no further action is required ---
DEFINE USB_LEDPOLARITY 1 ; LED ON State [0 or 1] (default = 1)
DEFINE USB_PLUGGEDLED PORTD,0 ; LED indicates if USB is connected
DEFINE USB_TXLED PORTD,1 ; " " data being sent to PC
DEFINE USB_RXLED PORTD,2 ; " " data being received from PC

;--- Setup ADC -------------------------------------------------------------
DEFINE ADC_BITS 8 ; Number of bits in ADCIN result

TRISA = 000011 ' Set port A pins to 6 output, 2 input
TRISB = 001111 ' Set port B pins to 4 output, 4 input
' B0 = External Interrupt
TRISC = 000000 ' Set all port C pins to output
TRISD = 000000 ' Set all port D pins to output
TRISE = 000000 ' Set all port E pins to output

;--- Variables -------------------------------------------------------------
Value0 VAR WORD : Value0 = 0
Value1 VAR WORD : Value1 = 0
DUTY1 VAR WORD
DUTY2 VAR WORD
LED1 VAR PORTD.3
WS_CHAR VAR BYTE
WS_BYTE VAR BYTE
WS_LOOPW VAR WORD
;--- Initialize ------------------------------------------------------------
ADCON2.7 = 0 ; left justify (Change this if ADFM in diff register)
ADCON1 = 001101 ; AN0 & AN1 analog
INTCON2 = 000000 ; Pull-up resistors, falling edge

PORTB = 000000 ; Set output on keypad to prevent floating pins

LCDOUT $FE,1 ' Initiate first command to LCD
PORTD = 0 ' Clear LEDs from LCD operations

FOR WS_LOOPW = 0 to 1000 ' Wait for LCD to initalize
PAUSE 1
NEXT WS_LOOPW
LCDOUT $FE,1,"LabX1 18F4550 USB"
PORTD = 0 ' Clear LEDs from LCD operations

FOR WS_LOOPW = 0 to 1000 ' Wait for USB to initalize
PAUSE 1
NEXT WS_LOOPW
ARRAYWRITE USBTXBuffer, ["Lab X1 "]
IF Plugged THEN GOSUB DoUSBOut ; only send when USB is connected

;--- The Main Loop ---------------------------------------------------------
Main:
FOR WS_LOOPW = 0 to 1000 ; Check for incomming USB data while waiting
@ ON_USBRX_GOSUB _HandleRX
PAUSE 1
NEXT WS_LOOPW

ADCIN 0, Value0 ; Send A/D about once/sec
ADCIN 1, Value1
ARRAYWRITE USBTXBuffer, [Value0, Value1, PORTD.3, 0, 0, 0, 0, 0]
IF Plugged THEN GOSUB DoUSBOut ; only send when USB is connected

GOTO Main
end

;---- Receive incoming data PORTB LEDS and CCP PWM dutycycle ---------------
HandleRX:
ARRAYREAD USBRXBuffer,[WS_BYTE, DUTY1.LowByte, DUTY1.HighByte, _
DUTY2.LowByte, DUTY2.HighByte]
LCDOUT $FE,$C0,BIN WS_BYTE
PORTD = 0 ' Clear LEDs from LCD operations
return

'---[INT - interrupt handler]---------------------------------------------------
ToggleLED1:
TOGGLE LED1
ARRAYWRITE USBTXBuffer, ["Button "]
IF Plugged THEN GOSUB DoUSBOut ; only send when USB is connected
PORTB = 0 ' Set output on keypad to prevent floating pins
@ INT_RETURN


The Lab X1 has no USB connector so I fudged one onto the PIC with hotglue. Duct tape was too big...

Robert

[jimbostlawrence]

Hi Robert,

Nice pic! lol.

Many thanks for this. I now have some hope of getting started on USB! Will take a look at this in the next day or so and fingers crossed get something going.

I'm not actually using the lab x1, just a simple circuit I made myself with a USB connector on the required pins and an LED or two on port b. Once I get a communication set up between it and the PC, I'll make it grow.

Cheers

Jimbo

[Demon]

My daughter left her camera lying around so I filled it up with a bunch of goofy pics. That one was the most presentable. :D

You don't have to be using the Lab X1 for my example, just remove the stuff you don't need like analog conversion, text message, etc.

It uses Steve's Visual Basic program on the PC, so you don't have to worry about that side yet. You can get into that later, at least this stuff works as is. I have yet to modify Steve's VB in my testing, so make sure to keep the SEND and RECEIVE fields as they are. That way you don't have to worry about modifying buffer lengths, recompiling VB program and such.

But if you use a 20 MHz crystal, 18F4550 and proper pins, you should be up and running quickly. If not, we're here.

Make sure to have the Includes in the same folder as your PBP program, as well as the 5 USB files Steve posted in that thread (start from Darrel's post and work your way back).

Robert
:)

EDIT: One last thing, make sure to use MPASM.

[jimbostlawrence]

Hello again,

Well, some progress. I know my circuit is fine as I managed to upload a hex file that echoes via a HID terminal anything I send to the circuit. That's half the battle I guess. Will get back to your stuff and simplify it as you said and get it up and running hopefully this week. Still over the moon that the circuit works! This USB stuff is hopefully going to open up a whole new world of faster data transfer from sensors for me (serial is too slow).

Very thankful for all these forums... hate stumbling around in the dark!

Best regards

Jimbo

P.S. Just noticed you're in Montreal! Visited a friend there a few years back. Somewhere around Lincoln/St Marc off Sherbrooke. Was a lovely place that (Montreal). Loved the 'bonjour/hi' that preceded transaction in a shop ;)

[Demon]

Here, this is even more simplified. Have momentary-ON button on Port B.0 pulled high, 4 LEDs with resistors to VSS on Port D.0, 1, 2 and 3.

On PIC side:
- button on Port B.0 sends "Button" text.

On PC side using Mr E's executable as-is:
- Port B buttons toggles LED on Port D.3.


'************************************************* **************************
'* Name : USBLabX1_RH.pbp *
'* Author : Steve Monfette/Darrel Taylor/Demon *
'* Date : Jan 11 2012 *
'* Version : 3.0 *
'* Notes : This is a re-creation of mister-e's USBdemo for DT_HID *
'* : Meant to work with mister-e's GUI *
'* : Modified for Lab X1 *
'* Hardware : PIC 18F4550, 20mhz crystal *
'* : Lab X1 Experimental Board, 9.5V wall adapter *
'* : MeLabs U2 Programmer v4.32 *
'* Software : PIC Basic Pro v2.60C *
'* : MicroCode Studio Plus v2.2.1.1 *
'* : MPASM WIN Assembler v4.02 (mplab tools/MPASM Suite) *
'* PIC mods : plastic USB connector hot-glued onto top of PIC *
'* : D- wired to C4 (pin 23) directly to top of pins *
'* : D+ wired to C5 (pin 24) directly to top of pins *
'* : two 0.1uF ceramic caps in parallel across VUSB and VSS *
'************************************************* **************************
'--- if you use these, you must comment the ones in the .inc file ---
@ __CONFIG _CONFIG1L, _PLLDIV_5_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
@ __CONFIG _CONFIG1H, _FOSC_HSPLL_HS_1H
@ __CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_OFF_2L & _VREGEN_ON_2L
@ __CONFIG _CONFIG2H, _WDT_OFF_2H
@ __CONFIG _CONFIG3H, _CCP2MX_OFF_3H & _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _MCLRE_ON_3H
@ __CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _ICPRT_OFF_4L & _XINST_OFF_4L

DEFINE OSC 48
CLEAR

;--- 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 "Mr E/DT/RH"
DEFINE USB_PRODUCTNAME "USBLabX1"
DEFINE USB_SERIAL "001"
DEFINE USB_INSIZE 8 ; IN report is PIC to PC (8,16,32,64)
DEFINE USB_OUTSIZE 8 ; OUT report is PC to PIC
DEFINE USB_POLLIN 10 ; Polling times in mS, MIN=1 MAX=10
DEFINE USB_POLLOUT 10

; --- Each USB status LED is optional, comment them if not used ------------
; --- They can be assigned to any pin, and no further action is required ---
DEFINE USB_LEDPOLARITY 1 ; LED ON State [0 or 1] (default = 1)
DEFINE USB_PLUGGEDLED PORTD,0 ; LED indicates if USB is connected
DEFINE USB_TXLED PORTD,1 ; " " data being sent to PC
DEFINE USB_RXLED PORTD,2 ; " " data being received from PC

;--- Setup Port directions -------------------------------------------------

TRISA = %00000000 ' Set port A pins to output
TRISB = %00000001 ' Set port B pins to 7 output, 1 input
TRISC = %00000000 ' Set all port C pins to output
TRISD = %00000000 ' Set all port D pins to output
TRISE = %00000000 ' Set all port E pins to output

;--- Variables -------------------------------------------------------------
DummyByte VAR BYTE ' Was used for analog logic by original demo
WS_BYTE VAR BYTE
WS_LOOP VAR WORD

;--- Initialize ------------------------------------------------------------
ADCON1 = %00001111 ; Digital
INTCON2 = %00000000 ; I need this for keypad on Lab X1, pull-up resistors

PORTB = %00000000 ; I need this for keypad on Lab X1
; Port B.0 is set high from output of Port B.4

PORTD.3 = 0 ' Clear LED

;--- The Main Loop ---------------------------------------------------------
Main:
FOR WS_LOOP = 0 to 250 ' Very basic debounce for keypress
@ ON_USBRX_GOSUB _HandleRX
PAUSE 1
NEXT WS_LOOP

IF PortB.0 = 0 then
ARRAYWRITE USBTXBuffer, ["Button "]
IF Plugged THEN GOSUB DoUSBOut ; only send when USB is connected
ENDIF

GOTO Main
end

;---- Receive incoming data PORTB LEDS and CCP PWM dutycycle ---------------
HandleRX:
ARRAYREAD USBRXBuffer,[WS_BYTE, DummyByte, DummyByte, DummyByte, DummyByte]
TOGGLE PORTD.3 ' Turn LED ON/OFF
return


Robert

[jimbostlawrence]

Many thanks for these examples; some good line examples on receiving an array of variables. Just what I need.

I think I'm going to get a book on USB so I get more of a background...

Best regards

Jimbo