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Topic: 10PU vs. 20PU ? (Read 1 time) previous topic - next topic


I setup to first time burn bootloader into an Atmega168 10PU, and I failed :D

Could it be for the standard chip coming with my original Arduino board was a 20PU?

Jeff K

The 20PU is rated to run at 20MHz while the 10PU is rated for 10MHz max.  The standard Arduino bootloader is designed for 16MHz.  Trying to load it on a 10PU could cause a problem.  I would try loading the lilypad bootloader that is designed to run at 8MHz.  If that fails, then you ruled out the bootloader.
Jeff K - JKDevices.com - home of the MegaMini


Thank you for the clear answer!

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