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Hi everybody,<br>
<br>
<br>
I'm looking for a tutorial which describe how to implement a serial
communication between the Minnowboard and a PC (OS is Linux Mint on
both).<br>
I'm beginner in serial documentation so I tried to follow any
documentation I found on the minnowboard wiki and internet but I'm
facing a problem that I'm not able solve still now.<br>
<br>
I currently have already wired the UART0 (GN, RxD, TxD) on the
minnowboard to a RS232/USB converter (this one is plugged to a PC.)<br>
<br>
By this way, I'm using the port /dev/ttyS0 (I also tried on
/dev/ttyS4 and ttyS5 by changing the connection but result is the
same) on the minnowboard and the port /dev/ttyUSB0 on the PC.<br>
I open putty on each side (PC/minnowboard), with the following
configuration :<br>
<ul>
<li> <b>Baud rate:</b> 115200</li>
<li> <b>Hardware Flow Control:</b> No</li>
<li> <b>Bits:</b> 8</li>
<li> <b>Stop:</b> 1</li>
</ul>
<p><br>
But the behaviour of the communication is weird. I can send data
through the /dev/ttyS0 port on the minnowboard (I electrically
check with a voltmeter) but port /dev/ttyUSB0 display nothing on
putty.<br>
AND, I can send data by /dev/ttyUSB0 port. These data are received
on the /dev/ttyS0 port (elctrical check with a Voltmeter), and
putty display data, but not the good one. <br>
For exemple :<br>
'a' become '0'<br>
'z' become '!'<br>
'e' become 'M'<br>
'r' become '#'<br>
't' become ''<br>
'y' become 'C'<br>
</p>
<p>Problem is the same on Linux terminal if I used echo and cat
command.<br>
</p>
<p><br>
I made several check of the port configuration and wired
connection but everything seems to be ok.<br>
I think, I miss something but currently I'm not able to see what.
<br>
</p>
<p>Does anybody can help me on this point ?<br>
</p>
<p>Thanks by advance<br>
</p>
<p>Mathieu<br>
</p>
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