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How to start with AT89S52 MC? Answered

I am new to embedded systems of 8051. i coded At89s52 and dumped my code for blinking LED.

when i trying to get out put from a bread board no result dont know where i m doing wrong i m sure with connection fittings and circuit exactly matches with what ever available in internet.

i have doubt on my crystal and 22pf capacitors and how to check them...?



can any one help me on this ..

Discussions

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Vijaykum_ar
Vijaykum_ar

4 years ago

hi

here in the picture you can find usb programmer led is glowing and isp is 10 pin socket i connected all as per instructions.. can you plz check this picture once and let me know if i m doing any wrong MC is AT89s52

thanks

IMG_20160110_191558360.jpg
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steveastrouk
steveastrouk

Answer 4 years ago

Show me a CIRCUIT

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Vijaykum_ar
Vijaykum_ar

Answer 4 years ago

this is the circuit i m following i have in a video after loading program to MC they are pulling reset wire off. if it is like that why so?

while reset wire is on led glows once it is put off it starts blinking...

can you explain what is happening?

Switch Interface Diagram.PNG
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steveastrouk
steveastrouk

Answer 4 years ago

What's your blinking LED code ? The led is blinking when the processor isn't reset, doesn't that mean its working ?

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steveastrouk
steveastrouk

4 years ago

What have you done with the reset pin ?