Power LED Turns off when Jumper

USB AVR Programmer and SPI interface. Adafruit's USBtinyISP.

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barkster
 
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Power LED Turns off when Jumper

Post by barkster »

When I set the jumper to provide power to my chip using the jumper the green power led goes off on my tinyisp and arvdude says cannot be found. Any suggestions Thanks

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adafruit_support_bill
 
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Re: Power LED Turns off when Jumper

Post by adafruit_support_bill »

If you disconnect it from the chip, does the green light stay on? You may have a short in the circuit you are trying to power.
If you post photos of the front & back of the USBTinyISP board, we'll check the assembly.

barkster
 
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Re: Power LED Turns off when Jumper

Post by barkster »

No I had it unplugged when i changed the jumper. Disconnected from the chip the led will turn off the second I connect the jumper
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Last edited by barkster on Mon Oct 07, 2013 6:52 pm, edited 1 time in total.

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adafruit_support_bill
 
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Re: Power LED Turns off when Jumper

Post by adafruit_support_bill »

Post photos then. We'll check out your assembly.

barkster
 
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Re: Power LED Turns off when Jumper

Post by barkster »

yeah forgot them
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adafruit_support_bill
 
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Re: Power LED Turns off when Jumper

Post by adafruit_support_bill »

IC2 is installed backwards. Make sure that the notch on the chip lines up with the notch on the silkscreen.

barkster
 
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Re: Power LED Turns off when Jumper

Post by barkster »

well that probably explains it. I've had this thing sitting around for five years and this is first time to use it. Thanks for the help!

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