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Topic: serial port problem, No data recieved< Next Oldest | Next Newest >
Termi1980 Offline





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Posts: 3
Joined: Dec. 2004
Posted: Jan. 06 2005,15:59 QUOTE
Hi,

i want to connect 2 seriel devices.
A Touchterminal which works fine and a Chip-reader.

The system recieves data from the touchpanel on every serial port i connect it to, but i got only data from the chip reader, when i connect it to the port, on which the touchpaneldriver listens.
I got the data with "od </dev/ttyS*".
All irqs and ports are set properly. I checked it with setserial.
Windows recieves data from the reader on every serial port.


Has anyone a idea?
Thanks a lot.



DSL Version : 0.901
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SaidinUnleashed Offline





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Joined: Mar. 2004
Posted: Jan. 06 2005,18:12 QUOTE
What kind of chip-reader?

Can we get some specs for the machine?

More info is needed to figure out what's up.


-J.P.

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Termi1980 Offline





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Posts: 3
Joined: Dec. 2004
Posted: Jan. 07 2005,08:20 QUOTE
Oh sorry,

its a little board with a via processor, 667Mhz, 128Mb Ram


Chip Reader maybe the wrong word. It is selfmade.
It reads a number from a transponder that you hold near the reader and sends it to the serial port.

But i solved the problem this morning. The od command is not reliable in this case. The data was transmitted correctly. The problem was that my program could not load a library. The library was in the directory of the program, but it must be in a global directory like /usr/lib.

Many greetings,

Claus Hinz.
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