RE: [lwip-users] lwip, ucos-ii, hcs12, cs8900 driver.

[Nishen Naidu]

Hi Eric,

I am also using ucos-II with a IO mode cs8900 driver.
I haven't tried using the card with an interrupt as yet though
(in the process of doing that soon).
I am currently polling the card for incoming packets in a
ucos task that runs approx. every 10ms.
My ping times are around 10ms->20ms. What are yours?

Thanks
Nishen

-----Original Message-----
From: address@hidden
[mailto:address@hidden Behalf Of
Eric Shufro
Sent: 04 May 2004 03:33
To: address@hidden
Subject: [lwip-users] lwip, ucos-ii, hcs12, cs8900 driver.


Leon,

Actually, I started with your driver and kept some of the code, especially
the structure pretty much the same.

Since I was unable to memory map the cs8900 into the hcs12 memory (didn't
think of it when I built the board, newbie here), I use the packetpageread /
packetpagewrite, ioread / iowrite paradigm.

Honestly, I am a rookie programmer, so this isn't great code, and has a lot
of dependencies on the underlying OS and hardware chip, but once I get
things working right, my plan is to reduce this as much as possible and post
it.

So far here is what I have. Maybe it will help others get started?

Btw, I found the stack overflow problem and now have a more stable system.
Although, I need to determine how to get rid of the threads I use for the
timers and make it multi-threading safe. I think this involves a better
understanding of the sys_timeouts and creating threads through the sys_arch
as opposed to with ucos during my startup task.

Pings are still slow however,

Have a good one,

--Eric Shufro