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hi, i wanted to know if my INITIAL loop is wrong method to check how that how many times the button has been pressed?
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Hi Brian,
I beleive that I am already using timer0 for the delays in blinking. as far as the interrupt check is concerned, I want it to be time...
im sorry i pasted a wrong code. this outpu is for the a modified code where i have placed both "MS" & "MS1" before the check loop and after ORG 0030H
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i have brought both strings in my code at the end and thanfully i got rid of the garbage values.
by 2 hz i mean that turn on and off time will be off 2sec. i am runinng this 4 times so altogether it takes 8 sec to execute the interrupt loop. the program should return back to blinking led1 after blinking the led2 at hz for as many cycles as i program it for
same with the OFF loop. the only...
there you go.
and thank you for guiding me. please do tell me some good books to learn assembly language.
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besides that, I know C language and have an idea of python as well. I have worked at Visual studio. However, my task is to do this using assembly language and I have...
hey,
thanks it solved the loop issue. however, it is giving me the following response on hyperterminal when interrupt is pressed ten times;
OFF
¨Â
OF
OFF
¨Â”Ò•{0²|uŠuŒÒŒ0ýÂŒÂÜï²”Ûé"¶+y"Ñ•Ҕ}~ uŠuŒÒŒ0ýÂŒÂÞﲕÝé"õ™0™ý™"Á•
Ò”}~
ON
ON
OFF...
the "reti" in the INITIAL loop should return to "BL" subloop
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i have kept R0=2 outside the interrupt loop so that whenever one "ON" & one "OFF" loop is executed, the value of R0 is reset.
hi Brian,
thank you for all the help and efforts to explain this to me. This might sound a very stupid question but i have to ask.
I always thought that when you call an interrupt it pushes the last address to the stack and after performing interrupt routine pops the previously saved...
so i did ret and reti the sub routines and the interrupts but this way it never returns from the "LOP" loop. for this very reason i hadi applied sjmp instead of ret or reti command.
ORG 000H
SJMP CHECK;
org 003H;
AJMP INITIAL
ORG 000BH; interrupt TIIMER routine
ajmp...
I corrected that part. however, removing the memory directives for timer and int0, the routines don't work at all. Therefore, I have kept the code under 0003h and 000BH.
ORG 000H
SJMP CHECK;
org 003H;
AJMP INITIAL
RETI
ORG 000BH; interrupt TIIMER routine
PUSH ACC...
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