Hello everybody, 

again me, and again a question about resp. a problem using the serial port 
/dev/ttyS0 of the foxboard... ;-)

At the moment, I face the problem that I have to attach a device to the serial 
port of the fox which makes intense use of the byte "0x00" (= some strange 
ASCII character I can not write in here... ;-)). Unfortunatly, it seems as if 
the foxboard (or perhaps the FOX Console I use for connecting the device - 
which in that case "speaks" RS-232 - to the foxboard) simply ignores the byte 
"0x00" when it arrives at the port. I also tested it using the "ser_test"-tool, 
and there is the same problem: if I send the byte 0x01 or "higher" (in that 
case directly from my PC over the serial connection), it appears as an output 
of ser_test, but when I send a 0x00 (which in my opinion represents valid 
character?), nothing happens :-(

Has perhaps anyone else experienced this problem so so, and has an idea (or at 
leat a workaround) for that problem? I can not avoid using the 0x00-byte as it 
is used in the serial protocol of a device not programmed by me, so that I have 
no change to change this. Is there perhaps the change that ttyS2 or ttyS3 will 
not have that problem? (I could not test this so far because I would have to 
solder the connections to the board before - and to be honest: I don't really 
want to do that because I'm not that great soldering expert... ;))






Reply via email to