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[on:]

I need to do some 9 bit to 8 serial communications, how Windows and the .NET framework handles serial comm and such I get framing errors from the device that uses 9 bit
because I have to emulate 9 bit serial with mark and space parity.
how do I configure 9 bit serial on the arduino and what is the easy way to manipulate the 9 bit, normally the parity bit when doing it with a 8 bit UART.

PC (host) <-> Arduino Leonardo <-> Game

I do not wish to move my PC program to the Arduino Leonardo (just get it to handle the bit twiddling that causes me many errors that I have to trap in the program on the PC.
it is so bad that the game repeats responses

[Reply #1 on:]

Need to read section 18 of the '32U4 data sheet, describes setting up the registers & stuff for 9-bit serial on the UART.
There's C examples of functions to use, even 9-bit examples.
http://www.atmel.com/Images/doc7766.pdf

[Reply #2 on:]

the only thing that document shows is the C compiler but it does not say what C development environment to use.

I figured by now some one would have already tackled 9 bit serial that could be adapted for what I need
Also I the device I am doing the 9 bit protocol only responds when the host polls it.

What is a good way to detect the first byte sent from the host, so I the arduino code does not accidentally set an address bit in the middle.
Also for polling the device I have to send out 2 bytes (80 and 81 hex) with the 9bit set.

I am wondering would it be better to have the arduino do that polling, instead of the PC

[Reply #3 on:]

You could try searching the Playground, searching the Forum. I've not personally done anything.

I don't think the compiler matters - put the functions into the IDE and see if they compile ok.

[Reply #4 on:]

I solved it.

Thanks

[Reply #5 on:]

hey fdyche

how did you solve your topic in the end? would be kind reading that. Thanks