Re: EPP Adapter woes (still no luck!)

From: fspu@nat-mia.aster.pl
Date: Thu Mar 08 2001 - 15:42:32 EET

  • Next message: koqy.josmuiss@yamaha.co.jp: "EPPCONV fix !"

    Months ago:

    afwmfzz@click21top.com.br wrote:
    > Can you try to find out where it bails out?

    Yep, I've done quite a bit of prodding now.

    > Try to find out if the code makes it until the
    > end of the bitrate probing in drvinit.c

    OK, machine is definitely in EPP 1.9 only mode.
    TMC TI6VG MB, via chipset:

    With genuine v0.9 driver source I get a fail at the
    very first epp_write_addr (epp timeout).
    However, if I put in PPFLAG_SWEMULEPP to force the
    function table to be updated with a s/w EPP emulation
    then it gets a bit futher:

    In this case it runs through the first section of the
    bitrate probe OK (reading 256byte chunks now and then
    for 0.5 seconds) with bytecount accumulating to a
    value just under 38kbit. Then it moves on to the
    section that reads byte by byte until the fifo is empty
    to get the accurate bytecount, reading the status
    latch between each byte. This is where the problems
    arrive.
    The status latch is read and says that there are data
    still in the fifo (NREF shows not empty) but a data
    read then fails.

    Haven't got much further yet, and I am desparate to
    get this going within the next month.

            73,
                    Jason G7OCD
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