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Topic: Leonardo bootloader USBtinyISP problem (Read 1 time) previous topic - next topic

0miker0

I have a few small designs layout out using the Atmega32u4 microprocessor that have the Leonardo bootloader installed using the USBtinyISP and the Arduino 1.0.3 IDE. I just choose the Leonardo and the board, USBtinyISP and clicked burn bootloader. The board usually runs the code fine on power up but occasionally will not. Every now and then I have to put in a new bootloader for it to work properly again. This has happened on two different pieces of hardware. Has anyone else had this problem?

0miker0

It turns out the reset line has a 10K pullup resistor but no capacitor to ground. That explains why it occasionally worked.

Mike

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