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32 bis external bus

Posted: Thu Nov 20, 2008 1:10 am
by reblofermier
Hi everybody,

In this forum or in NETBURNER documentations I only saw memory
interfaces with 8 or 16 bits external data bus.

My question is simple : is it possible to access an external memory on
32 bits bus with the MOD5270 ??

Thanks by advance for your collaboration

Re: 32 bis external bus

Posted: Thu Nov 20, 2008 2:50 pm
by lgitlitz
I just did a test on an oscilloscope confirming that all 32 data lines toggle when talking to a bus address configured for 32-bit. The lower 16 bits of the data bus are configured for gpio at boot so use the following line to configure these signal for the EIM:
sim.gpio.par_ad |= 0x1;

-Larry