32 bis external bus

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reblofermier
Posts: 3
Joined: Thu Nov 20, 2008 12:35 am

32 bis external bus

Post 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
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lgitlitz
Posts: 331
Joined: Wed Apr 23, 2008 11:43 am
Location: San Diego, CA
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Re: 32 bis external bus

Post 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
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