Home › Evil Mad Scientist Forums › Clock Kits › Problem uploading v2 firmware to first-gen Alpha Five Clock › Re: Problem uploading v2 firmware to first-gen Alpha Five Clock
November 4, 2012 at 7:18 pm
#20972
Windell Oskay
Keymaster
There is indeed a software issue that can prevent this from working. The bootloader that shipped on kits with on Alpha Clock Five firmware v. 1.0 had a programming rate of 38400 baud, while the default bootloader baud rate for version 2.0 is 57600. (This rate is the default for the new version of Sanguino that we are using.)
Since the bootloader baud rate can *only* be changed through an ISP programmer, you need to reconfigure your Arduino installation to upload firmware at 38400 baud, rather than 57600. Instructions on how to do this are a little further down on our page about the version 2.0 firmware: