Messages in this thread | | | Date | Sat, 28 Jul 2012 23:38:33 +0200 | From | folkert <> | Subject | problem with baycom driver |
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Hi,
It seems the baycom driver (for ham radio) needs some attention. The problems: - the baycom_ser_hdx driver does not work at all: very occasionally it switches the radio to send and transmit the data, but that's only one in thousand - the baycom_ser_fdx does seem to send, but only 1 or 2 packets, then something odd happens: the radio does transmit something but it is not recognizable as data. it sounds like a couple of ticks, not the recognizable modem sound. Important: if I do a sethdlc command, it again does send 1 or 2 valid packets!
The system on which I try it, is a 3.2GHz p4 (with HT) so I don't think it is a problem with the system not keeping up. The pc is a: Manufacturer: IBM Product Name: 8215F7G Version: ThinkCentre M52
Things are setup like this: /bin/setserial /dev/ttyS0 uart none /sbin/modprobe baycom_ser_fdx 'mode=ser12*' iobase=0x3f8 irq=4 /usr/bin/sethdlc -i bcsf0 -a txd 200 slot 100 ppersist 40 half /sbin/ifconfig bcsf0 hw ax25 FH1GOU-1 up
I played a little with the txd and does not help. Using full or half does not make a difference so far that it looks as if the first part of the packet is missing if I full duplex mode but I'm not entirely sure of that (no second modem setup). I verified the problem by listening with a second radio.
Folkert van Heusden
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