Lines Matching +full:25 +full:a
5 SCC.C - Linux driver for Z8530 based HDLC cards for AX.25
9 This is a subset of the documentation. To use this driver you MUST have the
19 A new version of the documentation, along with links to other important
20 Linux Kernel AX.25 documentation and programs, is available on
36 3. Attach each channel to the Linux kernel AX.25 with "ifconfig"
38 Unlike the versions below 2.4 this driver is a real network device
39 driver. If you want to run xNOS instead of our fine kernel AX.25
40 use a 2.x version (available from above sites) or read the
41 AX.25-HOWTO on how to emulate a KISS TNC on network device drivers.
47 (If you're going to compile the driver as a part of the kernel image,
50 Before you can use a module, you'll have to load it with::
57 and don't forget to insert a call of sccinit after that. It
66 and sets the hardware, MODEM and KISS parameters. A sample file is
78 data_a 0x300 # data port A
79 ctrl_a 0x304 # control port A
92 - this is just a delimiter to make sccinit a bit simpler to
93 program. A parameter has no effect.
96 - the address of the data port A of this Z8530 (needed)
98 - the address of the control port A (needed)
145 to a higher value.
153 data_a 0x300 # data port A
154 ctrl_a 0x304 # control port A
169 An example for a PA0HZP card:
198 A DRSI would should probably work with this:
243 will print a skeleton z8530drv.conf for the OptoSCC to stdout.
278 # the AX.25 header, not only the data field!
309 (digital pll) as transmit clock. Using this mode without a divider
313 2. Attachment of a channel by your AX.25 software
316 2.1 Kernel AX.25
319 To set up an AX.25 device you can simply type::
323 This will create a network interface with the IP number 44.128.20.107
326 axattach. The purpose of axattach (like slattach) is to create a KISS
327 network device linked to a TTY. Please read the documentation of the
328 ax25-utils and the AX.25-HOWTO to learn how to set the parameters of
329 the kernel AX.25.
336 that you probably need to compile the kernel AX.25, regardless of whether
347 You can now axattach a pseudo-TTY::
352 NOS is reachable only via digipeating through the kernel AX.25
353 (disastrous on a DAMA controlled channel). To solve this problem,
371 Once a SCC channel has been attached, the parameter settings and
419 Size maximum size of an AX.25 frame (*with* AX.25 headers!)
420 NoSpace number of times a buffer could not get allocated
426 driver or the kernel AX.25.
473 called "TXDELAY" in a TNC. When 0 is specified, the driver
475 assumes the presence of a timer or other circuitry in the
478 A normal value of this parameter is 30-36.
484 when the channel is found to be free. It is a value from 0
494 seems to be a good value.
500 byte of a packet has been transferred to the SCC. This is
501 necessary because the CRC and a flag still have to leave the
503 on the baudrate selected. A few character times should be
520 sent in that case, until a timeout (parameter 10)
537 channels, to avoid "getting a bad reputation" when you are
538 generating a lot of traffic. After the specified time has
540 mitter will be switched off for a specified time (parameter
557 time, the transmitter will be keyed down. A value of 0 is
564 This is the maximum time (in seconds) to wait for a free channel
567 should set this to a very low value ;-)
583 band. In these cases, it is not possible, or not a good idea, to
584 transmit on more than one frequency. The SCC driver provides a
599 0xx A byte that can be used to define different groups.
619 use a software dcd instead of the real one... Useful for a very
629 the manufacturer of the 8530. SGS chips have a slightly
630 different timing. Try Zilog... A solution is to write to register 8
634 A very common problem is that the PTT locks until the maxkeyup timer
641 (i.e. Amstrad) Those systems have a bogus AT bus timing which will
644 port. If it shows under- and overruns you own such a system.
652 - a high interrupt load
654 - a high load of the machine --- running X, Xmorph, XV and Povray,
656 Or running a named for the whole .ampr.org domain on an 8 MB
664 If you cannot solve a problem, send me
666 - a description of the problem,
684 AX-25 : DL1BKE @ DB0ABH.#BAY.DEU.EU