Lpc2000

Hi all,

I want connect a 8237 (a DMA controller) to my LPC2214.
(My 8237 is a VHDL IP on ACTEL FPGA)

Who can help me ?

best regards
Yodathegreat

--- In lpc2000@yahoogroups.com, "yodathgreat" <christophe.darnet@l...> 
wrote:
> I want connect a 8237 (a DMA controller) to my LPC2214.
> (My 8237 is a VHDL IP on ACTEL FPGA)

DMA requires that your external DMA controller can take control over 
the address/data bus, do its transactions, and give control back to the 
CPU.  The LPC2214 EMC doesn't support that.

Karl Olsen

Hi,

I know, but my "shared" SRAM is in FPGA...
In my FPGA I have make a Double port SRAM..



--- In lpc2000@yahoogroups.com, "Karl Olsen" <kro@p...> wrote:

>
> --- In lpc2000@yahoogroups.com, "yodathgreat" <christophe.darnet@l...> 
> wrote:
> > I want connect a 8237 (a DMA controller) to my LPC2214.
> > (My 8237 is a VHDL IP on ACTEL FPGA)
> 
> DMA requires that your external DMA controller can take control over 
> the address/data bus, do its transactions, and give control back to the 
> CPU.  The LPC2214 EMC doesn't support that.
> 
> Karl Olsen
>