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Discussion Groups | LPC2000 | LPC2214 with 8237 (DMA)
Discussion group dedicated to the Philips LPC2000 family of ARM MCUs
LPC2214 with 8237 (DMA) - yodathgreat - Nov 4 2:34:00 2005
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
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
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
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
Re: LPC2214 with 8237 (DMA) - Karl Olsen - Nov 4 3:29:00 2005
--- In lpc2000@lpc2..., "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
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
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
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
Re: LPC2214 with 8237 (DMA) - yodathgreat - Nov 4 3:59:00 2005
Hi,
I know, but my "shared" SRAM is in FPGA...
In my FPGA I have make a Double port SRAM..
--- In lpc2000@lpc2..., "Karl Olsen" <kro@p...> wrote:
>
> --- In lpc2000@lpc2..., "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
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
I know, but my "shared" SRAM is in FPGA...
In my FPGA I have make a Double port SRAM..
--- In lpc2000@lpc2..., "Karl Olsen" <kro@p...> wrote:
>
> --- In lpc2000@lpc2..., "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
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )