Re: 3,5" Firmware did not fit the whole screen

Jerry Gaffke

One other thing:

The MAX232 is just a logic level converter, between RS232 voltages and TTL/CMOS logic levels
The underlying UART protocol remains the same.
The UART protocol could be described in a paragraph.

USB is a different protocol all together, and ridiculously complex:
There's much more than logic level conversion going on inside the USB-to-UART devices.

USB is fine, so long as somebody else makes it work for me.
UART's are far simpler, easily debugged using something like a $20 scope from JYETech.


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