This is a update to Mister E's VB6 demo program, and firmware that uses Darrel's DT_HID260.pbp include file. It brings back some of the functions that went away with the HID update, and it adds a few more. It now transfers 10 bit A/D conversions to the PC, and it has a really low bandwidth mschart function. It also transfers the port info up to the computer in a single byte, and it's read by VB in bits. (It is hard to read bits with VB!) Ports are changed to match the Olimex PIC-USB-STK ( http://www.olimex.com/dev/pic-usb-stk.html ) . On the chart, it's a little over a second from left to right. By the way, if anyone knows how to keep the mschart from flickering as it is being redrawn, please let me know.
VB6 doesn't make it very easy to be sure you have include all the necessary files, so if you have issues, let me know. The code was made for a PIC18F4550 with a 20 mhz crystal. You will also need Darrel's DT_HID260 file from here: http://www.picbasic.co.uk/forum/show...0434#post80434
(Thanks Steve and Darrel for giving me the USB bug!)
Edit:Code:'**************************************************************************** '* Name : USB_Demo_4_HID.pbp * '* Author : Walter Dunckel ScaleRobotics using Darrels example as template* '* Notice : Copyright (c) 2011 * '* Date : 1/13/2011 * '* Version : 1.1 * '* Notes : Added Darrel's text example * '* : * '**************************************************************************** ;--- 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 'add if using Microchip's HID Bootloader 'DEFINE LOADER_USED 1 'DEFINE RESET_ORG 1000h ' For Microchip USB Bootloader ;ASM ; 18F13K50/14K50 Only 12mhz crystal can be used for USB ; __CONFIG _CONFIG1L, _CPUDIV_NOCLKDIV_1L & _USBDIV_OFF_1L ; __CONFIG _CONFIG1H, _FOSC_HS_1H & _PLLEN_ON_1H & _PCLKEN_ON_1H & _FCMEN_OFF_1H & _IESO_OFF_1H ; ; ;added ; __CONFIG _CONFIG2H, _WDTEN_ON_2H & _WDTPS_512_2H ; __CONFIG _CONFIG3H, _MCLRE_ON_3H ; __CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _BBSIZ_OFF_4L & _XINST_OFF_4L ;ENDASM DEFINE OSC 48 clear PortA = %00000000 TrisA = %00000001 PortB = %00000000 TrisB = %11110100 'make pushbuttons inputs for PIC-USB-STK 'TrisB = %00010000 'for 18k50 PortC = %00000000 TrisC = %00000000 TrisD = %00000000 CMCON = 7 'CM1CON0 = 7 'for 18f14k50 'CM2CON0 = 7 ' CCP/PWM ' ------- CCP1CON = %00001100 ' CCP1, PWM mode CCP2CON = %00001100 ' CCP2, PWM mode PR2 = 249 ' 12khz PWM Freq T2CON = %00000101 ' TMR2 on, prescaler 1:4 ;--- 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 "ScaleRobotics" DEFINE USB_PRODUCTNAME "Cheap-Scope" DEFINE USB_SERIAL "001" DEFINE USB_INSIZE 8 ;was 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 PORTD,0 ; LED indicates if USB is connected 'DEFINE USB_TXLED PORTD,2 ; " " data being sent to PC 'DEFINE USB_RXLED PORTD,1 ; " " data being received from PC OutCount VAR WORD : OutCount = 0 Value VAR word 'analog result from AN0 Value2 var word 'analog result from AN11 X VAR WORD counter var byte Duty1 var word EXT ' make them available Duty2 var byte EXT smallvalue var byte ;--- Setup ADC ------------------------------------------------------------- DEFINE ADC_BITS 10 ; Number of bits in ADCIN result ADCON2.7 = 1 ; right justify (Change this if ADFM in diff register) 'ANSEL = %00000000 'for 18f14k50 'ANSELH = %00000100 'for 18f14k50 ADCON0 = %00000001 ' turn on a/d AN0 ;--- The Main Loop --------------------------------------------------------- pause 2000 'wait for connection ARRAYWRITE USBTXBuffer, ["USB Demo"] 'show text example GOSUB WaitToSend Main: FOR X = 0 to 2 ; Check for incomming USB data while pausing @ ON_USBRX_GOSUB _HandleRX PAUSE 1 NEXT X ADCin 8, value2 @Duty1=_USBRXBuffer+1 @Duty2=_USBRXBuffer+3 counter = counter +1 ADCIN 0, Value ARRAYWRITE USBTXBuffer,[portb,counter,value.highbyte,value.lowbyte,Value2.highbyte,Value2.lowbyte,0,0] CCP1CON.5=DUTY1.1 ' load CCP1 duty value CCP1CON.4=DUTY1.0 ' with Duty1 CCPR1L=DUTY1>>2 CCP2CON.5=DUTY2.1 ' load CCP2 duty value CCP2CON.4=DUTY2.0 ' with Duty1 CCPR2L=DUTY2>>2 portd = usbrxbuffer[0] 'IF Plugged THEN GOSUB DoUSBOut ; only send when USB is connected gosub SendIfReady GOTO Main ;---- This just sends the received packet back to the PC ------------------- HandleRX: ARRAYWRITE USBTXBuffer,[STR USBRXBuffer\USBBufferSizeRX] return SendIfReady: IF Plugged AND TX_READY THEN DoUSBOut RETURN WaitToSend: WHILE Plugged and !TX_READY : WEND IF TX_READY THEN GOSUB DoUSBOut RETURN
Ok, now looking at Darrel's post 221 http://www.picbasic.co.uk/forum/show...0611#post80611 , he already made the program compatible with most of the original functions for the 18F4550. So I (also) lifted his code to transfer text to the PC. However, I only do this at power up, so I don't slow the analog transfers down.
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