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pc based led on/off using serial port programming????

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bhanot.manik90

bhanot.manik90

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can anyone plz help me , i want to make my very first project regarding microcontrollers...i want to switch on/off led connected to p0.0 port of at89s52, through key: 'A' . i have used here max232 for interfacing at89s52 with the pc...so plz anyone , send its source code in assembly language only????
 

but in the given website above, the code is written to send a character from microcontroller to pc and i already know how to do that....but the problem is , i dont know how to control the led attached on mc through pc key: 'A' ...plz send me the code in assembly language as i dont know vb
 

Hi.
First of all your requirement is PC to controller interface to transmit a data from the PC & control the operations in the controller rite?
So just configure or look for how to serially communicate the controller with PC which is explained in the datasheet. Initialize the registers required for serial commn & do first simulate what you require in PROTEUS & then if it works fine go for real time implementation. Good luck!!!!!!!!!11
Regards,
Jerin. :)
 

hello bhanout. it s clear and straight there. check the project pc based device control. the code for mc is in assembly language. and it is same as u require, controlling a led or relay from the pc.
 
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