From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3B55BF9A.7020009@mvista.com> Date: Wed, 18 Jul 2001 09:55:54 -0700 From: Matthew Locke MIME-Version: 1.0 To: Nguyen Trung Thanh Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: PCMCIA Nokia Cardphone 2.0 for MPC823 References: <3B52C152.F5FB58B7@genetel.co.kr> <000901c10df4$f1e85100$df0fa8c0@mystore> <3B532093.4010004@mvista.com> <003601c10e93$7f5a72e0$df0fa8c0@mystore> Content-Type: text/plain; charset=EUC-KR Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Nguyen Trung Thanh wrote: > Hi Matthew Locke, > Thank you very much for your reply. > > As you said, I moved to the newest version of Pcmcia Card Service which I > could find from ftp.mvista.com > Its version is 3.1.24.. I don't know it is good enough or not. > > Of course, I changed something to avoid conflicts between 8xx serial driver > (uart.c) and serial.c. > I mapped the _IO_BASE 0x80000000, hardcode irq = 9. > Then it worked well with PCMCIA modem such as Xircom. > > Now I could use this version with Nokia Cardphone2.0, but the result is the > same. > I just wonder why this PCMCIA cardphone can run smoothly in a Sony VAIO > laptop using this version of linux kernel 2.2.14 and pcmcia-3.1.24, but when > I run it with my board, I must add some delay in function receive_chars in > file: serial.c. > Otherwise, I'd receive a lot of gabage charaters. For example: > I wrote a string "ATZ" , and then received: > "aATZOKaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" > instead of "ATZOK"??? > > Would you pls tell me what is the problem here? > I think that it is due to the timing of 16550A chip, is it right? > Or it is due to the serial speed? yeah, it could be some sort of timing issue, but I am not looking at the specs for any of those parts. > If you have any idea about my problem, pls tell me... > > Thanks for you kindness, > Jari > > >>Nguyen Trung Thanh wrote: >> >> >>>Hi all, >>> >>>Pls help me, I'm stuck with this card. >>>Now I used kernel Powerpc Hardhat 2.2.14, >>>and pcmcia-cs-3.1.21 in a custom board using >>>MPC823. >>> >> >>You should consider moving to 3.1.26, many bugs have been fixed. >> >> >>>I could dial up with this card, but it is not stable, >>>and I could not transfer data such as ftp.... >>> >>>Furthermore, I must set the maximum value for >>>psst = 4, psht = 4, and psl = 20. >>>and add some delay between each time I read from serial port ( in >>> > function > >>>receive_chars from file serial.c). >>> >> >>In general, there are conflicts between 8xx serial driver (uart.c) and >>serial.c. They may be stepping on each other. >> >> >>>Have anyone done it, before? Or you have any information about thi card >>>phone, pls give me. >>> >>>Does this card use 16550A, and follow the standard of this chip? >>>Is there any special thing about it spec, timing? >>> >>>Thanks very much, >>>Jari >>> > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/