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hardware problem

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milind213 View Drop Down
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Joined: 28 December 2009
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  Quote milind213 Quote  Post ReplyReply Direct Link To This Post Topic: hardware problem
    Posted: 14 January 2010 at 11:03
I am designing a development board using ATMEGA 32 and also has other IC's like FT232 and a regulator 1117 (5 volts). Many sensors and LCD are still to be connected.
In the board I am getting all the desired voltage levels at all points but still the circuit is not working. Is there any problem with the current flow because when i measured current, it was just 15 mA on entire board. If yes, then how am I supposed to fix it ? Please help
I have used a double sided PCB which is self made(using EAGLE)

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i havent used autoroute facility and have made it by hand. I am using a 16 Mhz crystal. Also, since all the ic's are surface mounted i could not test on the bread board. Although, circuit is fine.
The problem is I am getting voltage across the power on led of atmega but still its not glowing and also the atmega32 is not getting programmed
Help please help
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kuin View Drop Down
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Joined: 18 January 2010
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  Quote kuin Quote  Post ReplyReply Direct Link To This Post Posted: 18 January 2010 at 20:26
I also use a cristal 16 MHz but my ATmega32 can not work. after I use the 12 MHz, the can work well and be well on the program.

for regulator to 5 volt DC I use IC
LM7805, because this regulator have output 0,5A.

hope it help.
my site :
http://keep-elka.blogspot.com
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