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rahulParticipant
location of start of first line first char. is 80h so…so when you add each character counter is incremented like 81 82 so on….when keep adding char to print on display …then when counter reaches to c0h then they are printed on 2nd line as address of first char on 2nd line is c0h
rahulParticipantbro it’s 16×2 lcd means it can print only 16 character on first line…you have to take care whenever your string contain more than 16 character then first print 16 character on first line then issue command to have cursor on 2nd line then print remaining character. ..
rahulParticipantmeans initially you want high low pulses in port a later on it will be on port b now fot 5 mins
rahulParticipanthi can u mail all your code on my id [email protected]
rahulParticipantfor wht duration you have configured timer? ? means how much is time interval of pwm singal is high or low
rahulParticipantdo you mean you are getting pwm on say port A continuously now you want this signal on port B say for 5mins…once this 5 mins are over this signal will not be on port B….and by the time on port A this signal will exist continuously. ..
am I correct?rahulParticipantplz explain your problem in detail so we can help you
rahulParticipantpost ur email id and circuit diagram
rahulParticipantpost your mail id i will share adc logic with u.
rahulParticipantcan u plz share circuit diagram with us??
fst thing is that u can not measure ac signal directly u need to convert it in TTL form or use adc..
it wil be fine if u can communicate on my mail id [email protected]
December 30, 2014 at 7:41 am in reply to: problem in loading program to 89C51 microcontroller #12472rahulParticipantwhen you pressed character from terminal window and restart your board..does that character echo back????
if yes then bootloader of your controller is ok… if not
remove serial cable from board &
then short pin 2 and 3 of your serial cable and try to send character from terminal if it echo back then your cable is ok…
if cable is fine and controllers bootloader seems to be damaged you need to change controller.
Best Luck…..
December 28, 2014 at 5:19 am in reply to: problem in loading program to 89C51 microcontroller #12463rahulParticipantgo to tools then terminal…set lowest baud rate then in terminal window. keep pressing U from keyboard and then power on your 8051 board..
if in terminal window controller sends same character back to you then its bootloader is ok of your board ..
now close terminal window then select your hex file and program.
Always try with lowest baud rate as possible.
TRY with O, & F key if U Not worked..
best luck…
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