doubt in rtc

actually you did not edited the code properly.
you removed many things which were necessary for the clock. I am giving you one example...
In your code above there is a mistake..
... Read Compelte post
Other Tags: mov   rtc   r7   r6   wave generator   
Posted by ajay_bhargav on Sun Apr 29 2007, 07:29 PM

HOW TO SET 5 DIFFERNET ALARMS IN THE DIGITAL CLOCK PGM

In the display RTC routine i am checking for the Alarm
PASS:	inc r1
	mov a,#0C7h
	acall command
	mov a,@r1
	mov 51h,@r1
	mov alarm_chk_min,@r1
	acall disp_val
PASS1:	inc r1
	mov a,#0c4h
	acall command
	mov a,@r1
	mov 52h,@r1
	mov alarm_chk_hour,@r1
	mov r4,a

here i am moving the current time to alarm_chk_hour and min registers so that i can use them while comparing.
... Read Compelte post
Other Tags: r1   mov   setb   chk   
Posted by ajay_bhargav on Fri Apr 27 2007, 07:07 AM

HOW TO SET 5 DIFFERNET ALARMS IN THE DIGITAL CLOCK PGM

setting alarm, this is just an example...

eg you create two variables, alarm_hr and alarm_min
alarm_hr will have the address where hr of the alarm is going to be stored and alarm_min will have the address where min of the alarm is going to be stored, so before calling the alarm set routine, you fill these variables with the addresses, where you want to store the alram.
say...
for alarm 1: hr is store... Read Compelte post
Other Tags: 24h   variables   alarm time   time is going   mov   
Posted by ajay_bhargav on Sun Apr 22 2007, 02:28 PM

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hii!! some1 please let me know how i ll get rfid code to 8051 by WEIGAND mode
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Hello everyone, using software uart is a very good idea for a second serial port. Thank you so much. I would kindly like to know how to connect this port to the PC?
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Posted By ExperimenterUK
Thu Sep 13 2018, 08:39 PM
First of all, by reading your reply, I abandoned m...
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Posted By DrNossberg
Thu Sep 13 2018, 03:49 PM
Hi, thanks you for your reply ^^ First of all, by ...
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Posted By ExperimenterUK
Wed Sep 12 2018, 12:12 AM
HiThere are several issues here.The original 8051 ...
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Posted By DrNossberg
Tue Sep 11 2018, 08:08 PM
Hello everybody!First of all let me explain some s...
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Posted By ExperimenterUK
Fri Sep 07 2018, 05:08 AM
The compiler thinks the micro doesn't have enough...
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Posted By Sudhansudeep
Fri Sep 07 2018, 02:59 AM
this is the build output message
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Posted By Sudhansudeep
Fri Sep 07 2018, 01:38 AM
Change the mobile number as [number removed] in t...
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Posted By ExperimenterUK
Thu Sep 06 2018, 08:56 PM
I don't know what the problem is, I get no errors....
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Posted By Sudhansudeep
Thu Sep 06 2018, 01:12 PM
the code is Attachment ...
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Posted By Sudhansudeep
Thu Sep 06 2018, 12:48 PM
the code is same as u sent me for 16 chars