Hi Michael,
> I'm currently using the BBB to control a rover robot for a project at my
> university. I'm currently having an issue using the UART file /dev/ttyOx to
> write an array of characters to a smart servo using c/c++.
> More specifically, I've opened the file using
> fopen("/dev/ttyO2", "wb")
>
> which should open it in binary mode. I've also tried the c++ equivalent with
> ofstream file("/dev/ttyO2", ios::out|ios::binary)
>
> For the most part these have worked fine. I have been using the UART tool
> for the PicKit 2 to verify what I've been receiving. But, despite having
> opened the file in binary mode, if I try to write 0x0A it will still append
> 0x0D to form CRLF, or newline.
>
> For example, if I create a character array:
> char c[] = {0xFF,0xFF,0x0A,0x01,..}
>
> This is seen on the UART tool:
> FF FF 0D 0A 01 ...
>
> If anyone knows a fix, or can offer any insight (should I be approaching it
> incorrectly), I would greatly appreciate it.
I believe you have to properly configure your serial port (baud rate,
line discipline, etc).
See this wiki page:
http://en.wikibooks.org/wiki/Serial_Programming/termios
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