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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It's been a few years since I poked around here - Hi all...
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Hi TPS. it's been a while..
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sayyad affrid
its AT89S52
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sayyad affrid
sir, i want embedded c code for ultrasonic sensor having buzzer interfaced with AT9S52
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zafir
i am making digital voltmeter using AT89C51, ADC and LCD 16x2,,, kindly someone please send me hex file in assembly language
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can not find dhtxx.md file in proteus 8.0 can anybody help me please?
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can i get gsm a6 library? can anybody help? tia
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Can i get the code of Monitering and controlling of green house effect? ... Can anyone help me ?
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I want to burn code in atmel 89s51 24pc 0329 but cannot get the connection with the burner. Can somebody provide me with the circuit diagram for connecting controller to burner. I'm using usb burner

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Posted By ExperimenterUK
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This is clearly an old design.A modern microcontr...
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For now I don’t have much information about device...
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Sometimes the Configuration word has to be program...
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What exactly is your situation ?I very much doubt ...
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I tried to compile your 8051 version in Keil 5but...
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I just think something is off in the checkgpgga fu...
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Why do you think there is something wrong with it...
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Please help me correct this code #include ...