Ethernet with Vampire V500 V2+

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Marlon
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Re: Ethernet with Vampire V500 V2+

Post by Marlon » Tue 14 Feb 2017 16:50

Does this mean V500 v2+ has 2xSPI headers essentially? So hypotetically you could use the SD-slot for ethernet and the SPI header for USB?

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guibrush
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Re: Ethernet with Vampire V500 V2+

Post by guibrush » Fri 17 Feb 2017 08:28

Yes, that's the case. In facts, only the form factor of the plug change. But we have another idea for the second SPI header, stay tuned !
A600 V1.5, V600 V2, A604n, RTC, Indi ECS, 32Gb CF, PCMCIA Ethernet, HD floppy, TOM, HP Pavilion 23xi monitor
A500+V8A, V500+, Indi ECS, 32Gb CF, SD-net, SD floppy, Kipper 2Mb chip expansion, TOM, Eizo EV2450

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Annatar
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Re: Ethernet with Vampire V500 V2+

Post by Annatar » Sun 26 Feb 2017 18:55

bax wrote:Strange things do happen. I wonder what that sdnet.device actually means. Who in a sane state of mind would use an SD slot for networking?
Image
So this depicts the Arduino EtherNet module, connected to the micro SDHC slot?

Assuming that is the case, which low level protocol is being used to send TCP/IP and UDP packets through the micro SDHC slot / cable?

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bax
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Re: Ethernet with Vampire V500 V2+

Post by bax » Mon 27 Feb 2017 08:42

Annatar wrote:So this depicts the Arduino EtherNet module, connected to the micro SDHC slot?
Assuming that is the case, which low level protocol is being used to send TCP/IP and UDP packets through the micro SDHC slot / cable?
Actually, the Arduino-centric version of these modules is not recommended. The Micro SD slot runs with 3.3V power supply and signal levels, while the Arduino modules have a 5V VCC (and sometimes clamping diodes that might be harmful to the Vampire board). A plain 3.3V version is better in this regard as it doesn't require soldering on the ENC28J60 board itself.

The layer1 protocol is straightforward SPI at roughly 20 MHz. Some modules also accept slight overclocking (up to 23 MHz).

The payload at layer2 is IEEE802.2/802.3 Ethernet in conjunction with a SANA-II driver. This way, one can transparently use any networking stack with Ethernet support. The MAC address is auto-generated from the Vampire FPGA serial number.
A500 Rev8a1, V500 V2, ECS, 1.5 MB Chip, 32 GB CF
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darksun9210
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Re: Ethernet with Vampire V500 V2+

Post by darksun9210 » Wed 29 Mar 2017 13:13

i think it's exciting enough having a decent ethernet solution. just so long as it runs faster than the parallel port can only be a good thing.

have run a 68k socket clockport adapter + subway card + usb2ethernet adapter previously.
it wasn't the fastest, but for an A500. it's enough. :mrgreen:
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diabl8xxx
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Re: Ethernet with Vampire V500 V2+

Post by diabl8xxx » Fri 21 Apr 2017 12:02

Hello,

It's possibile to buy this adapter for ENC28J60?

or it's also possible built by myself?

Thanks

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