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8051 programming

i needed some help in programming 89c51 with a tdk modem ic ..
i also need code for polling 4 pins of port 1 of 89c51..
please contact me if u can help me .
regards chetan

Comments

  • jeffpostjeffpost Member Posts: 316
    : i needed some help in programming 89c51 with a tdk modem ic ..


    Not clear to me what you mean. Could you be more specific?


    : i also need code for polling 4 pins of port 1 of 89c51..


    Again, could you be more specific? What are you polling for? Do you have application code you need to add this to? If so, send it with detailed questions and I'll see if I can help.


    : please contact me if u can help me .
    : regards chetan
    :
    :

  • chetanchetan Member Posts: 3
    : : i needed some help in programming 89c51 with a tdk modem ic ..
    : i want to create a delay of 1 min how do i do it?make a pin low for a particular time....
    :
    : Not clear to me what you mean. Could you be more specific?
    :
    :
    : : i also need code for polling 4 pins of port 1 of 89c51..
    :
    :
    : Again, could you be more specific? What are you polling for? Do you have application code you need to add this to? If so, send it with detailed questions and I'll see if I can help.
    :
    :
    : : please contact me if u can help me .
    : : regards chetan
    : :
    : :
    :
    :

  • jeffpostjeffpost Member Posts: 316
    : : : i needed some help in programming 89c51 with a tdk modem ic ..
    : : i want to create a delay of 1 min how do i do it?make a pin low for a particular time....
    : :
    : :

    Which bit, which port? Example, suppose you want to make bit 2 of port 3 low for some period of time:

    clr p3.2 ; pin goes low
    ; add delay routine here
    set p3.2 ; pin goes high

    Your delay routine could be a software loop, or checking a counter incremented or decremented in a timer ISR, just about anything.


  • chetanchetan Member Posts: 3
    i need the delay routine for 1 minute.. also post your email id...

    : : : : i needed some help in programming 89c51 with a tdk modem ic ..
    : : : i want to create a delay of 1 min how do i do it?make a pin low for a particular time....
    : : :
    : : :
    :
    : Which bit, which port? Example, suppose you want to make bit 2 of port 3 low for some period of time:
    :
    : clr p3.2 ; pin goes low
    : ; add delay routine here
    : set p3.2 ; pin goes high
    :
    : Your delay routine could be a software loop, or checking a counter incremented or decremented in a timer ISR, just about anything.
    :
    :
    :

  • jeffpostjeffpost Member Posts: 316
    : i need the delay routine for 1 minute.. also post your email id...
    :

    My email address is in my profile. Where the message says 'posted by', click on my login name and it will bring up the profile.

    : : :
    : : Your delay routine could be a software loop, or checking a counter incremented or decremented in a timer ISR, just about anything.
    : :

    How you implement a 1 minute delay depends on your application. I'd need to know more about your app to advise on an appropriate method. Email me some details.

    Jeff

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