lpcware

hang upat start using ULN2803A

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by ron12341 on Sun May 19 06:38:32 MST 2013
Hello

after connecting my lcp1769 to a ULN2803A like on the pic attached it won´t start up anymore. LED2 seems to be be half on and the debugger does not go into main function.
If I disconnect the IC everything starts up fine.
Any idea?

Also If i drive the ULN manually by 3.3V everything is fine which tells me the circuit must be ok....
Is there any special configuration on software side necessary?

Thanks
br
Ron

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