On Sunday 06 December 2009, Alex Joni wrote:
>The key here is EPP:
>"Enhanced Parallel Port (EPP) is a half-duplex bi-directional interface
>designed to allow devices like printers, scanners, or storage devices to
>transmit large amounts of data. EPP can provide up to 2 Mbit/s bandwidth,
>approximately 15 times the speed achieved with normal parallel-port
>communication with far less CPU overhead."
>
>Regards,
>Alex
>
>--------------------------------------------------
>From: "Dave" <e...@dc9.tzo.com>
>Sent: Sunday, December 06, 2009 7:06 PM
>To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
>Subject: Re: [Emc-users] Mesa 7i43 and a oxford semiconductor ox12pci840
>chipset pci parallel card
>
>> That's interesting as the Moschip 9805 chipset boards have worked well
>> for me with the LPT step and direction drivers on EMC2 and also Mach3.
>>
>> Perhaps the driver that runs the 7i43 needs a different mode than the
>> LPT step and direction driver/s ??
>>
>> Dave
>>
>> Sebastian Kuzminsky wrote:
>>> Maximilian H wrote:
>>>> I am trying to get this combination of a mesa 7i43 and an oxford
>>>> semiconductor ox12pci840 chipset pci parallel card to run, but I cannot
>>>> get it to run in epp_wide mode and I cannot get a servo thread to run
>>>> with a cycle time of less than 10 millisecs. With onboard mainboards I
>>>> got 1 millisecs cycle times without errors.
>>>>
>>>> Has anybody succeeded where I failed so far ?
>>>
>>> Hm, i've had success with the Oxford Semiconductor PCI952 chipset with
>>> wide mode disabled, but i haven't tried the 840.
>>>
>>>> Is the information in the hm2_7i43 doc still valid that moschip 9805
>>>> parport pci cards are junk ?
>>>
>>> Yes, the 9805 chipset is buggy and there's nothing any driver can do
>>> about it.
Humm, then is this Rosewell branded card usable? I installed it thinking of
my lathe.
>From lspci -vv:
0000:00:0a.0 Communication controller: NetMos Technology PCI 9815 Multi-I/O
Controller (rev 01)
Subsystem: LSI Logic / Symbios Logic 2P0S (2 port parallel adaptor)
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at c000 [size=8]
Region 1: I/O ports at c400 [size=8]
Region 2: I/O ports at c800 [size=8]
Region 3: I/O ports at cc00 [size=8]
Region 4: I/O ports at d000 [size=8]
Region 5: I/O ports at d400 [size=16]
Thanks.
--
Cheers, Gene
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