[En-Nut-Discussion] Propox MMNet01 and Nut/OS

[Ernst Stippl]

Hi Niklas!

Two differences between the Ethernut boards and the "01"

- The Ethernut board has a 32.768 kHz crystal installed. I dont know if the
interrupt generated by it is mandatory for Nut/OS to work ???
- Ethernut has a 14.7456 MHz crystal, the "01" has a 16 MHz crystal. This
may change the timing for the uart's baud rate clock and thus shift it off
margin.

>From what you describe, I seen nothing wrong.

You could try using another piece of SW just to find out if your problem is
within the HW or SW right now.
WinAVR (the prepackaged gcc compiler + tools) contains an example directory.
Maybe you could get one of these little programs to run, that would rule out
HW problems.

Or maybe somebody on the list here has some more ideas....


regards
Ernst

-----Ursprüngliche Nachricht-----
Von: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de] Im Auftrag von Nicke
Gesendet: Mittwoch, 09. Mai 2007 08:23
An: en-nut-discussion at egnite.de
Betreff: Re: [En-Nut-Discussion] Propox MMNet01 and Nut/OS


Thanks for your help, but I still can't get it going.

The "01" module has 64kB of externtal RAM and the "02" has 128kB. The "01"
has a very simple memory controller, up to 0xFEFF are the RAM and from
0xFF00 is the RTL8019AS ethernet controller.

Do you think I'm doing something wrong when I build the app and compile it?,
I set the path's in settings, then "Build Nut/Os" and finally "Create sample
directrory".
In nutapp dir I run "make clean" and "make all" in the uart sample folder
and burn the hex to the uC, I don't see where I can do anything wrong but
what do I know... 

regards
Niklas


Ernst Stippl wrote:
> 
> Hi Nicklas!
> 
>>From a quick glance at the Propox web pages, I can see that the "01"
module
> has no extenal memory controller, but the "02" has one. 
> Have a look at the schematics of the "01" to see into which address 
> the ext.
> memory is wired.
> 
> As a start, try if this stripped-down conf file helps:
> 
> PLATFORM="MMNET01"
> AVR_GCC = ""
> MCU_ATMEGA128 = ""
> NUTMEM_START = "0x100"
> NUTMEM_RESERVED = "64"
> NUTXMEM_SIZE = "28416"
> NUTXMEM_START = "0x1100"
> 
> the entries for the ethernet controller and the banked memory are 
> removed, but as a simplistic start, it may work.
> 
> regards
> ernst
> 
> 
> 

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