Problem with 3Com 3cxm556 modem PCMCIA card

Prabhakar Kalasani kalasani at sena.com
Mon Feb 23 20:09:21 EST 2004


Hi all,
My modem pc card is "3com's Megahertz 56k cellular modem PC card" , If send
modem string from minicom I'm not getting OK response from the target, where
as If i use "Billionton's 56 kbps FAM/MODEM PC card" I could get "OK"
response from the target to minicom, what could be the difference between
these two cards , I could detect the both the cards after insmod the
modules. If i use "cardctl ident" command the result is like

# cardctl ident
Socket 0:
product info: "3Com", "3CXM/3CCM556", "Megahertz 56K Cell/Telephony Modem"
manfid: 0x0101, 0x0034
function: 2 (serial)

If I put the "3com's Megahertz 56k cellular modem PC card" in my Notebook I
could get the OK response from the same Modem. I'm using MPC855T processot
based target board.

The dump_cis for Billionton is :

Socket 0:
dev_info
no_info
vers_1 5.1, "Billionton V92 Fax Modem", "FM56C-BFS", "5.41"
manfid 0x014e, 0x0088
funcid serial_port [post]
config base 0x0100 mask 0x0013 last_index 0x30
cftable_entry 0x20 [default]
[mwait] [audio] [pwrdown]
Vcc Vnom 5V Vmin 4500mV Vmax 5500mV Istatic 200mA
Iavg 300mA Idown 30mA
timing wait 12us
io 0x03f8-0x03ff [lines=10] [8bit] [range]
irq 4 [level]
cftable_entry 0x21
io 0x02f8-0x02ff [lines=10] [8bit] [range]
cftable_entry 0x22
io 0x03e8-0x03ef [lines=10] [8bit] [range]
cftable_entry 0x23
io 0x02e8-0x02ef [lines=10] [8bit] [range]
cftable_entry 0x24
io 0x0000-0x0007 [lines=3] [8bit]
irq mask 0x1cb8 [level]
cftable_entry 0x30
io 0x0000-0x0007 [lines=3] [8bit]

The dump_cis for 3Com is :

Socket 0:
dev_info
NULL 0ns, 512b
vers_1 4.1, "3Com", "3CXM/3CCM556",
"Megahertz 56K Cell/Telephony Modem"
manfid 0x0101, 0x0034
funcid serial_port [post]
config base 0x0300 mask 0x0003 last_index 0x23
cftable_entry 0x20 [default]
[rdybsy] [audio] [pwrdown]
Vcc Vnom 5V Istatic 350mA Idown 35mA
io 0x03f8-0x03ff [lines=10] [8bit] [range]
irq mask 0xffff [level]
cftable_entry 0x21
io 0x02f8-0x02ff [lines=10] [8bit] [range]
cftable_entry 0x22
io 0x03e8-0x03ef [lines=10] [8bit] [range]
cftable_entry 0x23
io 0x02e8-0x02ef [lines=10] [8bit] [range]
serial_interface
uart 16550 [space/mark/odd/even] [7/8] [1/1.5/2]
serial_modem_cap
flow [XON/XOFF xmit] [XON/XOFF rcv] [hw xmit] [hw rcv] [transparent]
cmd_buf 64 rcv_buf 1536 xmit_buf 1536
serial_data_services
data_rate 115200
modulation [Bell103] [V.21] [V.23] [V.22] [Bell212A]
[V.22bis] [V.32] [V.32bis] [V.34]
error_control [MNP2-4] [V.42/LAPM]
compression [V.42bis] [MNP5]
cmd_protocol [AT1] [AT2] [AT3] [MNP_AT]
serial_fax_services [class=1]
data_rate 115200
modulation [V.21-C2] [V.27ter] [V.29] [V.17]
features [T.4]
serial_fax_services [class=2]
data_rate 115200
modulation [V.21-C2] [V.27ter] [V.29] [V.17]
features [T.4]

What could be the mistake I'm doing, Please help me out.

Regards,
Prabhakar Kalasani 





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