|
PORTB.0 is not used anywhere in the program (other than output from the Demo).
PORTB.5-7 are only used if the USB Status LED lines are uncommented (I left them commented). And they can be assigned to any pin, they don't have to be PORTB.5-7
CDC is USB, there's no RS232 connector.
In excel, use the Data | Import External Data | Import Data menu item to just plop your CSV file right into your spreadsheet. Then when the data changes, use Data | Refresh Data to update everything automatically.
<br>
DT
|
One more time
Sorry to be such a pest, Darrell, but am now trying to adapt your USBdemo_DTID so that it will go into USB connection mode as an interrupt when the USB cable is connected, permitting me in the Interrupt Service Routine to execute some code that is only intended to be executed when the USB cable is connected.
I thought I could make the simple changes to your code as shown in my attachment below, where I just used a USB_INT with the DT_INTS-18 include file to perform the interrupt to my label "USBhandler".
This compiles and assembles OK and starts on power up, but when the USB cable is connected I get a WINDOWS error saying "USB Device Not Recognized". Am I missing something here on how to make this work as a USB connection interrupt??
Code:'************************************************************************** '* Name : USBdemo_DTHID2.pbp * '* Author : Modification of Steve Monfette/Darrel Taylor * '* Date : 11/9/2009 * '* Version : 2.0 * '* Notes : This is a re-creation of mister-e's USBdemo for DT_HID * '* : Meant to work with mister-e's GUI but with a USB interrupt * '* : service routine where some specific code will be executed * '* : only during USB connection. * '************************************************************************** ;-- if you un-comment these, you must comment the ones in the .inc file -- ASM ; 18F2550/4550, 8mhz crystal __CONFIG _CONFIG1L, _PLLDIV_2_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_ON_2H & _WDTPS_512_2H __CONFIG _CONFIG3H, _PBADEN_OFF_3H __CONFIG _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L ENDASM DEFINE OSC 48 CLEAR ;--- Setup Interrupts ------------------------------------------------------ INCLUDE "DT_INTS-18.bas" ; Base Interrupt System INCLUDE "ReEnterPBP-18.bas" ' Include if using PBP high priority interrupts ASM INT_LIST macro ; IntSource, Label, Type, ResetFlag? INT_Handler USB_INT, _USBhandler, PBP, yes endm INT_CREATE ; Creates the interrupt processor endasm @ INT_ENABLE USB_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 "Mister E/DT" DEFINE USB_PRODUCTNAME "USBDemo" 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 PORTB,7 ; LED indicates if USB is connected ;DEFINE USB_TXLED PORTB,6 ; " " data being sent to PC ;DEFINE USB_RXLED PORTB,5 ; " " data being received from PC ;--- Variables ------------------------------------------------------------- Value0 VAR WORD Value1 VAR WORD X VAR WORD DUTY1 VAR WORD DUTY2 VAR WORD Old_PORTA VAR BYTE New_PORTA VAR BYTE ;--- Setup ADC ------------------------------------------------------------- DEFINE ADC_BITS 8 ; Number of bits in ADCIN result ;--- Initialize ------------------------------------------------------------ CCPR1L = 0 CCPR2L = 0 CCP1CON = %00001100 ' CCP1, PWM mode CCP2CON = %00001100 ' CCP2, PWM mode PR2 = 249 ' 0-1000 duty range T2CON = %00000101 ' TMR2 on, prescaler 1:4 TRISB = 0 OUTPUT PORTC.1 OUTPUT PORTC.2 ADCON2.7 = 0 ; left justify (Change this if ADFM in diff register) ADCON1 = %1101 ; AN0/AN1 Analog ;--- The Main Loop --------------------------------------------------------- Main: 'Normally in sleep mode waiting for interrupts Toggle PORTE.2 ' Test LED flashing during Main loop GOTO Main '----------------Interrupt Service Routines Start Here-------------------- USBhandler: FOR X = 0 to 1000 ; Check for incomming USB data while waiting @ ON_USBRX_GOSUB _HandleRX PAUSE 1 New_PORTA = PORTA ; Check PORTA pins IF New_PORTA != Old_PORTA THEN Old_PORTA = New_PORTA ARRAYWRITE USBTXBuffer, ["USB Demo"] GOSUB WaitToSend ARRAYWRITE USBTXBuffer, [Value0, Value1, PORTA.2, _ PORTA.3, PORTA.4, PORTA.5,0,0] GOSUB WaitToSend ENDIF NEXT X ADCIN 0, Value0 ; Send A/D about once/sec ADCIN 1, Value1 ARRAYWRITE USBTXBuffer, [Value0, Value1, PORTA.2, _ PORTA.3, PORTA.4, PORTA.5,0,0] GOSUB SendIfReady 'Code to be processed only during USB connection. TOGGLE PortE.3 ' Test LED that USB interrupt occured @ INT_RETURN ;--- Send Data if Plugged and ready, otherwise discard -------------------- SendIfReady: IF Plugged AND TX_READY THEN DoUSBOut RETURN ;--- Wait till Ready to send of until unplugged --------------------------- WaitToSend: WHILE Plugged and !TX_READY : WEND IF TX_READY THEN GOSUB DoUSBOut RETURN ;---- Receive incoming data PORTB LEDS and CCP PWM dutycycle --------------- HandleRX: ARRAYREAD USBRXBuffer,[PORTB, DUTY1.LowByte, DUTY1.HighByte, _ DUTY2.LowByte, DUTY2.HighByte] 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 Duty2 CCPR2L=DUTY2>>2 ' return
|
DT_HID already uses the USB interrupt.
If you override it, then USB can't happen anymore.
Besides, your routine is not suitable for interrupts anyway.
There's 1000 loops with pauses and gosubs ... wouldn't work.
There is already a way to determine if the cable is plugged in or not, and that is handled by DT_HID.
When the cable is plugged in, and the USB is connected to the PC and has fully enumerated. The Plugged bit will be 1. When not plugged, it's 0.
So just put your routine in the Main loop, and only run it IF Plugged = 1.
Don't forget to restore the INT_Handler ...Also, DO NOT enter sleep mode when using USB.Code:ASM INT_LIST macro ; IntSource, Label, Type, ResetFlag? INT_Handler USB_Handler endm INT_CREATE ; Creates the interrupt processor endasm
<br>
DT
|
Bad News!
So what your saying is I can't have the MCU in SLEEP mode and wake it up with an intterrupt when the USB cable is connected? Unfortunately, that is exactly what we wanted to do to save battery power on our application. It is only going to have someone plug a USB cable into it once per month and we wanted to have the MCU sleep except for about 1 minute at midnight each night and also when it then sees a USB cable plug-in once per month. Keeping it awake all the time to accomadate a possible USB connection will not meet our battery life requirements.Originally Posted by Darrel Taylor
Is there any way to save power consumption by the embedded processing application when a USB cable is not plugged in???
|
|
You can.
But before you put it to sleep, you'll need to put the USB module in suspend mode UCON.1, which can only be done reliably when unplugged.
This disables the USB voltage regulator and stops the clock to the SIE, which will give the lowest current consumption.
The USB routines are not setup to handle a resume.
So your best bet it probably to connect the +5V from the USB cable to one of the INT pins with a pull-down resistor.
When the cable gets plugged in, it will generate an interrupt, at which point you would execute an @ RESET to reset the processor and initialize the USB again.
HTH
DT
|
Made changes per your suggestions...now an assembly error
:(OK, so I made changes to my code per your suggestions (see partial code below) including an IF Plugged =1 test in the Main loop to pole for USB connection and go to my USB servicing procedure when connected. I didn't do anything to get SLEEP mode yet because I want to make sure the interrupts are working first in this code.
This code compiles, but creates a single error during assembly that says
"Error[101]c:\PathToAsmfile.asm 1132:ERROR:(INT_ENABLE priority state not found)". So I can't get it to run yet with this error.
I'm not sure what this error is telling me...the required statement for @ INT_ENABLE INT2_INT is in the code. Does it also require an INT_ENABLE USB_HANDLER statement for the USB interrupt??
Code:Include "Modedefs.Bas" INCLUDE "DT_INTS-18.bas" ' Base Interrupt System INCLUDE "ReEnterPBP-18.bas" ' Include if using PBP high priority interrupts INCLUDE "ALLDIGITAL.pbp" ' Sets all registers for digital ops. DEFINE OSC 48 ;--- if you un-comment these, you must comment the ones in the .inc file-- ASM ; 18F2550/4550, 8mhz crystal __CONFIG _CONFIG1L, _PLLDIV_2_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_ON_2H & _WDTPS_512_2H __CONFIG _CONFIG3H, _PBADEN_OFF_3H ; PortB resets as digital __CONFIG _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L ENDASM ' Initialize Hardware ' =================== Spare_1 VAR PORTB.7 ' PGD for ICSP & Spare I/O for normal ops Spare_2 VAR PORTB.6 ' PGC for ICSP & Spare I/O for normal ops 'Set registers TRISA = 0 ' PORTA all outputs for LCD use TRISB =%00011000 ' RB4 & RB3 set as RTC Alarm1 & Alarm2 inputs TRISC = 0 TRISD = 0 TRISE = 0 '------------SETUP FOR USING DS1337 Real Time Clock (RTC)--------------- '*********************************************************************** ' Setup Hardware for uart ' ======================= DEFINE HSER_BAUD 115200 DEFINE HSER_RCSTA 90h DEFINE HSER_TXSTA 24h DEFINE HSER_CLROERR 1 ' Aliased Variables for CLock ' =========================== Alarm1 VAR PORTB.4 ' Alarm1 input from DS1337 INTA Alarm2 VAR PORTB.3 ' Alarm2 input from DS1337 INTB SCL VAR PORTB.1 ' I2C clock pin SDA VAR PORTB.0 ' I2C data pin RTC CON %11010000 ' RTC device write address(byte addressing) ' This is a list of allowable clock contrl settings, one which must be ' setup in the SetTimeAndDate subroutine as intended. 'contrl CON %00000011 ' Starts the oscillator, sets the SQW/OUT ' to 1 Hz, enables INTA interrupt from A1F ' or from A2F. WORKS as intended!! 'contrl CON %00000111 ' Starts oscillator, enables INTA interrupt ' from A1F or INTB from A2F. WORKS OK! ' Both interrupts staggered 30 secs apart. ' RTC Address definitions ' ======================== SecReg CON $00 ' seconds address (00 - 59) ' MSB of SecReg must be set to a 0 to enable RTC MinReg CON $01 ' minutes address (00 - 59) HourReg CON $02 ' hours address (01 - 12) or (00 - 23) DayReg CON $03 ' day address (1 - 7) DateReg CON $04 ' date address (01 - 28/29, 30, 31) MonthReg CON $05 ' month address (01 - 12) YearReg CON $06 ' year address (00 - 99) ' Alarm 1 Address definitions ' =========================== Alm1sec CON $07 ' Alarm 1 seconds address (00 - 59) Alm1min CON $08 ' Alarm 1 minutes address (00 - 59) Alm1hr CON $09 ' Alarm 1 hours address (01 - 12) or (00 - 23) Alm1Day CON $0A ' Alarm 1 day address (1 - 7) ' Alarm 2 Address definitions ' =========================== Alm2min CON $0B ' Alarm 2 minutes address (00 - 59) Alm2hr CON $0C ' Alarm 2 hours address (01 - 12) or (00 - 23) Alm2Day CON $0D ' Alarm 2 day address (1 - 7) ' Alias of Clock register addresses ' ================================= ContReg CON $0E ' CONTROL register address StatusReg CON $0F ' STATUS register address ' Clock Variables ' ================ sec VAR BYTE ' seconds MINs VAR BYTE ' minutes hr VAR BYTE ' hours day VAR BYTE ' day date VAR BYTE ' date mon VAR BYTE ' month yr VAR BYTE ' year ' ALARM1 VARIABLES ' ================ A1sec VAR BYTE ' seconds A1MINs VAR BYTE ' minutes A1hr VAR BYTE ' hours A1day VAR BYTE ' day ' ALARM2 VARIABLES ' ================ A2MINs VAR BYTE ' minutes A2hr VAR BYTE ' hours A2day VAR BYTE ' day GoSub SetTimeAndDate ' Setup current time & alarm settings '*----------------SETUP FOR USING USB INTERFACE------------------------- '*********************************************************************** INCLUDE "DT_HID260.pbp" DEFINE USB_VENDORID 6017 DEFINE USB_PRODUCTID 2000 DEFINE USB_VERSION 1 DEFINE USB_VENDORNAME "Mister E/DT" DEFINE USB_PRODUCTNAME "USBDemo" 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 PORTB,7 ; LED indicates if USB is connected ;DEFINE USB_TXLED PORTB,6 ; " " data being sent to PC ;DEFINE USB_RXLED PORTB,5 ; " " data being received from PC ;--- Variables ---------------------------------------------------------- Value0 VAR WORD Value1 VAR WORD X VAR WORD DUTY1 VAR WORD DUTY2 VAR WORD Old_PORTA VAR BYTE New_PORTA VAR BYTE ;--- Setup ADC ---------------------------------------------------------- DEFINE ADC_BITS 8 ; Number of bits in ADCIN result ;--- Initialize --------------------------------------------------------- CCPR1L = 0 CCPR2L = 0 CCP1CON = %00001100 ' CCP1, PWM mode CCP2CON = %00001100 ' CCP2, PWM mode PR2 = 249 ' 0-1000 duty range T2CON = %00000101 ' TMR2 on, prescaler 1:4 TRISB = 0 OUTPUT PORTC.1 OUTPUT PORTC.2 ADCON2.7 = 0 ; left justify (Change this if ADFM in diff register) ADCON1 = %1101 ; AN0/AN1 Analog '------------------------SETTINGS FOR INTERRUPTS------------------------ '*********************************************************************** 'Set interrupt related registers RCON.7 = 1 ' Set Interrupt Priority Enable bit (Bit7=IPEN) ' to enable priority levels on interrupts INTCON.7 = 1 ' Set Global Interrupt Enable bit INTCON.6 = 1 ' Set PEIE to enable low priority periph interrupts INTCON2 = %10001000 ' Enable PORTB Pull-ups (Bit7-high), set INTEG2 ' for falling edge (Bit4-low) on RTC's interrupt. INTCON3 = %10001000 ' Set INT2IP high priority (Bit7-high), ' enable INT2IE for interrupt(Bit4-high) RTC_INT_FLG VAR INTCON3.1 'Alias for RB4 INTA interrupt from RTC 'Setup external interrupt macros ASM INT_LIST macro ; IntSource, Label, Type, ResetFlag? INT_Handler USB_Handler INT_Handler INT2_INT, _Alarm, PBP, yes endm INT_CREATE ; Creates the interrupt processor ENDASM @ INT_ENABLE INT2_INT ; enable external (INT) interrupts ' -----------------------BEGIN MAIN PROGRAM LOOP----------------------- '*********************************************************************** Main: Pause 1000 IF Plugged = 1 THEN HIGH PORTC.6 GOTO USB ' USB cable is plugged-in ENDIF ' Else, do other things if not connected ' If Alarm interrupt, read current time & ALARM settings from DS1337 ' Perform range measurements if Midnight LOW PORTC.6 USB: 'Process data from EEPROM to PC via USB interface GoTo Main ' Endless Loop End ' Safety measure to insure program stops if reaches here '--------------------( Begin Interrupt Handler )------------------------ '*********************************************************************** Alarm: HIGH PORTC.7 ' Test LED if Interupt ' Put code here to service the Alarm interrupt LOW PORTC.7 ' Resume Main Program @ INT_RETURN End ' Safety measure to insure program stops if reaches here '------------------{ End of Interrupt Handler }--------------------------- ' START LIST OF SUBROUTINES '**************************
Last edited by jellis00; - 7th December 2009 at 23:30.
|
Put the Interrupt definitions before the HID stuff.
That's the way it was originally. But it got reversed in your program.
Also, don't mess with all the INTCON and RCON registers.
DT_INTS handles all those for you.
If you change them, it can interfere with the interrupt system.
<br>
DT
Members who have read this thread : 3You do not have permission to view the list of names.
Posting Permissions
Bookmarks