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DMA STPC Elite

mvirique
Associate II
Posted on August 18, 2003 at 12:59

DMA STPC Elite

3 REPLIES 3
mvirique
Associate II
Posted on July 29, 2003 at 11:33

Hi,

Where can I find detailed documentation to program the DMA2 controller of the STPC Elite.

Thanks.

Cyber
thierry239955_st
Associate II
Posted on July 31, 2003 at 08:41

The DMA of the STPC follow standard PC architecture and is compatible with intel 8237.

You can find interesting informations here:

http://docs.freebsd.org/doc/4.0-RELEASE/usr/share/doc/handbook/dma.html

The best would be to get a book on PC architecture like 'The PC Bible' or a book on ISA bus (or the spec of the 8237!).

Note the DMA is on ISA and have the same limitation as the bus itself: it is slow and limited to 16MB of address space.

Farfalla

mvirique
Associate II
Posted on August 18, 2003 at 12:59

Thanks,

I also found an old book on the Intel 8237, and DMA works fine.