Red LED doesn't blink, bootloader doesn't run

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

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iacobus12
 
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Red LED doesn't blink, bootloader doesn't run

Post by iacobus12 »

I plugged in my Gemma for the first time and sat down with the Adafruit Arduino IDE. The red led dimly blinks once and stops, both when the Gemma is first plugged in and when I press the reset button. Trying to upload the blink sketch gives me the error that happens when the bootloader isn't running.

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adafruit_support_rick
 
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Re: Red LED doesn't blink, bootloader doesn't run

Post by adafruit_support_rick »

You can repair the bootloader by following these instructions:
https://learn.adafruit.com/introducing- ... bootloader

iacobus12
 
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Joined: Sat Jul 26, 2014 12:40 pm

Re: Red LED doesn't blink, bootloader doesn't run

Post by iacobus12 »

Ok, so, it wasn't the gemma, it's something about my computer, it worked as soon as I tried it on a friend's. Could it be that I have USB 3.0?

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adafruit_support_rick
 
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Re: Red LED doesn't blink, bootloader doesn't run

Post by adafruit_support_rick »

Try a different USB port. Also, try connecting through a self-powered USB hub. Trying a different cable is also a good idea.

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enurbs2015
 
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Re: Red LED doesn't blink, bootloader doesn't run

Post by enurbs2015 »

Does this happen on Macs?

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Franklin97355
 
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Re: Red LED doesn't blink, bootloader doesn't run

Post by Franklin97355 »

The USB 3 problem does.

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