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Honored ContributorLAN91C111 on Daughtercard, NIOS II
Hi,
I have an evaluation version of NIOS II softcore and I'd like to interface the microprocessor with the LAN91C111 chip on Daughtercard (I have an old development board with an APEX FPGA...).Unfortunately my version support only the SOPCB Ethernet Adapter for LAN91C111 on development board. Is available a version that support the Ethernet Adapter for LAN91C111 on Daughtercad? Or, is it possible to interface the chip on Daughtercard using the Ethernet Adapter for LAN91C111 on development board? Thank U.15 Replies
Altera_ForumNios II does not support Apex.
- Altera_Forum
hi Kerry,
thank u for the suggestion but we are not using the development board with the Apex FPGA, but we are trying to interface a board, shipping a Cyclone FPGA, with the daughter card (that was included in the Nios devolopment kit) - Altera_Forum
Hello Soin,
Do you have some more information (perhaps in pdf format) about the daughter card with the LAN91C111? Bye, niosIIuser - Altera_Forum
hi niosIIuser,
we have "nios_edk_user_guide.pdf" file that gives some more information about the daughtercard with the LAN91C111, you can download it from the NIOS I literature page http://www.altera.com/literature/lit-nio.jsp (http://www.altera.com/literature/lit-nio.jsp) bye - Altera_Forum
Hello Soin,
Thank you for the link. The actual file name is “ug_niosedk.pdf”. It looks like you have the same problem as me (lan91c111 in 16-bit mode with lwip? (http://www.niosforum.com/forum/index.php?act=st&f=17&t=154)) because the LAN91C111 on your daughter card is also running in 16-bit mode. I hope someone can help us. Bye, niosIIuser - Altera_Forum
hi niosIIuser,
you are right...i think we have an analogue problem: in fact SOPCB Ethernet Adapter for LAN91C111 on development board uses a 32 bit data bus to interface tha LAN91C111 chip, while daughter card is running in 16-bit mode. - Altera_Forum
If you look in the example designs area you will see a 16 bit lan example design.
Does that help? - Altera_Forum--- Quote Start --- originally posted by kerri@Jul 21 2004, 06:45 PM if you look in the example designs area you will see a 16 bit lan example design.
does that help? --- Quote End --- Hello Kerri, Thank you for your reply. What do you mean with “example design area”? Please give us some more details. I searched the installation directory but I didn’t find a 16-bit example for the stand alone lwip. Thank you for your help, niosIIuser
- Altera_Forum
Sorry, I was talking about the Nios I example design dir. It was for Apex anyways. But there is a 16 bit design for Apex and plugs.
Since Nios II is 32 bit there wouldn't be a 16 bit design there. But might it help anyways? If you don't have access to the Nios I install, I can zip and send you what you need if you want. - Altera_Forum
Hello Kerri,
I took a look into the Nios 16-bit example design. The files are very different to the HAL libraries. Do you know what changes are needed in the HAL file? Best regards, niosIIuser
