This is definitely ringing alarm bells and could be the source of my troubles as I have tweaked my config to allow me to load the 644.hex bootloader rather than the 644P I am guessing that the lack of the second UART may be why I am getting no EC comms, no way to test this other than replacing the chip and trying again!
Thursday, 9 February 2012
ATMEGA644 or ATMEGA644P that is the question!
Spent several hours web reading last
night (06-Feb-2012), and stumbled across a page I had seen before when trying to get the
bootloader working on the mobo, it suggested that the 644P chip has 2 UARTS and
the 644 only has one, the author of this thread came to the conclusion that he
would need to replace the chip for a 644P as the second serial port is used to
communicate with the EC.
This is definitely ringing alarm bells and could be the source of my troubles as I have tweaked my config to allow me to load the 644.hex bootloader rather than the 644P I am guessing that the lack of the second UART may be why I am getting no EC comms, no way to test this other than replacing the chip and trying again!
This is definitely ringing alarm bells and could be the source of my troubles as I have tweaked my config to allow me to load the 644.hex bootloader rather than the 644P I am guessing that the lack of the second UART may be why I am getting no EC comms, no way to test this other than replacing the chip and trying again!
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