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ON 20070714@2:46:54 AM at page:
http://www.piclist.com/techref/microchip/ios.htm#39277.1158217593
Sameer Sathe[SS-sss-H52] Code:
his is the code to actually enter the code into mcu via USART , it will only accept the code unless & until u only press capital 'S'. Without using any Interrupt , its a pooling type code
;--------------------------------------------------------------------------------------
USART_REC
BANKSEL PIR1
btfss PIR1,RCIF ; Test for received data flag
GOTO USART_REC_returns
BTFSC RCSTA,OERR
goto overerror ; check for over run error
BTFSC RCSTA,FERR
GOTO frameerror ; CHECK FOR FRAMING ERROR
movf RCREG,W ; Store data in W
MOVWF HAULT_KEY
goto HAULT_DECIDE
overerror
bcf rcsta,cren ;pulse cren off...
movf rcreg,w ;flush fifo
movf rcreg,w ; all three elements.
movf rcreg,w
bsf rcsta,cren ;turn cren back on.
;this pulsing of cren
;will clear the oerr flag.
;enable interrupts.
goto USART_REC ;try again...
frameerror
movf rcreg,w ;reading rcreg clears ferr flag.
bsf intcon,gie ;enable interrupts.
goto USART_REC ;try again...
;--------------------------------------------------------------------------------------------
HAULT_DECIDE ; CHECK IF THE KEY PRESSED ID 'S' OR RESUME NORMAL SEND DATA FUNCTION
MOVLW 0X53 ; capital S
SUBWF HAULT_KEY
BTFSS STATUS,C
goto USART_REC_returns
BTFSS STATUS,Z
goto USART_REC_returns
continue to key enter routine
ON 20070714@3:06:13 AM at page:
http://piclist.com/techref/microchip/rs232.htm#39277.1293171296
Sameer Sathe[SS-sss-H52] Code:
his is the code to actually enter the code into mcu via USART , it will only accept the code unless & until u only press capital 'S'. Without using any Interrupt , its a pooling type code
;--------------------------------------------------------------------------------------
USART_REC
BANKSEL PIR1
btfss PIR1,RCIF ; Test for received data flag
GOTO USART_REC_returns
BTFSC RCSTA,OERR
goto overerror ; check for over run error
BTFSC RCSTA,FERR
GOTO frameerror ; CHECK FOR FRAMING ERROR
movf RCREG,W ; Store data in W
MOVWF HAULT_KEY
goto HAULT_DECIDE
overerror
bcf rcsta,cren ;pulse cren off...
movf rcreg,w ;flush fifo
movf rcreg,w ; all three elements.
movf rcreg,w
bsf rcsta,cren ;turn cren back on.
;this pulsing of cren
;will clear the oerr flag.
;enable interrupts.
goto USART_REC ;try again...
frameerror
movf rcreg,w ;reading rcreg clears ferr flag.
bsf intcon,gie ;enable interrupts.
goto USART_REC ;try again...
;--------------------------------------------------------------------------------------------
HAULT_DECIDE ; CHECK IF THE KEY PRESSED ID 'S' OR RESUME NORMAL SEND DATA FUNCTION
MOVLW 0X53 ; capital S
SUBWF HAULT_KEY
BTFSS STATUS,C
goto USART_REC_returns
BTFSS STATUS,Z
goto USART_REC_returns
continue to key enter routine
ON 20070716@11:11:08 AM at page:
http://www.piclist.com/techref/microchip/osc.htm#39279.4660648148
James Newton[JMN-EFP-786] archive reference
/techref/postbot.asp?by=time&id=piclist/2007/06/21/180730a
List post "results of 20MHz resonator tests" 2007 \ 06 \ 21 testing of several resonators on a PCB with two PICs. Master PIC is a 16F876A set to HS mode. Slave is a
ON 20070718@11:22:20 AM at page:
http://www.piclist.com/microchip/routines.htm#39280.9500347222
James Newton[JMN-EFP-786] Published and replied to post 39280.9500347222 by vimalrajs
|Insert 'That depends on the C compiler and should be documented by the compiler vendor.' at: ''
vimalrajs@aol.in "
how to access the port in Pic 16F877A in C Code"
|Delete 'P-' before: '' but after: 'rajeshd@spanwave.com refers to
/techref/microchip/isrdelaycomp.htm
i want to create 3 pattern of pwm signal ,how its possible?
example , 1st signal-total time is 2us ,ontime .25us
2nd signal-total time is 1701us,ontime 1us
3rd signal-total time is 1701us,ontime 1us
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