So, here's a project of mine.
It's a Zorro III card combining 64M of SDRAM and 10M/100M Ethernet on the same board. The project was started in 2010 as a way to add more RAM to Amiga 3000, (almost not) known as Z3SDRAM. Later the design was expanded by adding a Fast Ethernet network card built around DM9000 chip.
There's a forum topic on EAB (http://eab.abime.net/showthread.php?t=71457), I'll fetch a few pics from there.
This nice blurred shot shows off Ethernet socket's LEDs. None of them will be lit during normal network operation due to the mistake in schematics. It is also clearly seen that the Ethernet patch cord will have to be connected in a slightly uncomfortable way.
Here's the board caught in FPGA debugging session:
A SANA-II compatible dm9000.device has been written (or rather made out of 3c589 sources), which currently seems to be working with AmiTCP and RoadShow TCP/IP stacks. I was not able however to overcome MiamiDx dislike for DNS so only pings and direct IP access have been tested with Miami.
The network performance of the card is rather decent. On an 030@25 A3000 with only 2M of Chip RAM and no Fast RAM and 64M of the said Zorro RAM, NetIO shows speed around 250KBytes/s. Adding Fast RAM improves performance greatly, and together with experimental FPGA SDRAM core running at 133MHz speeds of up to 400KBytes/s could be seen.
Here's the board working hard in my A3000.
So far, I have built 4 of these. One I am using myself for development and fun, another went to a fellow Moscow amigan, the rest two I am planning to put up for sale here on AmiBay.
Wait! Is this a 300Mbit Amiga hub or what?!
It's a Zorro III card combining 64M of SDRAM and 10M/100M Ethernet on the same board. The project was started in 2010 as a way to add more RAM to Amiga 3000, (almost not) known as Z3SDRAM. Later the design was expanded by adding a Fast Ethernet network card built around DM9000 chip.
There's a forum topic on EAB (http://eab.abime.net/showthread.php?t=71457), I'll fetch a few pics from there.
This nice blurred shot shows off Ethernet socket's LEDs. None of them will be lit during normal network operation due to the mistake in schematics. It is also clearly seen that the Ethernet patch cord will have to be connected in a slightly uncomfortable way.
Here's the board caught in FPGA debugging session:
A SANA-II compatible dm9000.device has been written (or rather made out of 3c589 sources), which currently seems to be working with AmiTCP and RoadShow TCP/IP stacks. I was not able however to overcome MiamiDx dislike for DNS so only pings and direct IP access have been tested with Miami.
The network performance of the card is rather decent. On an 030@25 A3000 with only 2M of Chip RAM and no Fast RAM and 64M of the said Zorro RAM, NetIO shows speed around 250KBytes/s. Adding Fast RAM improves performance greatly, and together with experimental FPGA SDRAM core running at 133MHz speeds of up to 400KBytes/s could be seen.
Here's the board working hard in my A3000.
So far, I have built 4 of these. One I am using myself for development and fun, another went to a fellow Moscow amigan, the rest two I am planning to put up for sale here on AmiBay.
Wait! Is this a 300Mbit Amiga hub or what?!