Re: [time-nuts] AM335x/Beaglebone Black memory bus (was: 1 PPS 50-ohm driver)

[Graham / KE9H]

I think the more common way to do this is SPI or the I2S / DSP type
transfer formats.
You are likely to find existing Verilog modules that do these transfer
formats.

--- Graham / KE9H

==

On Mon, Apr 18, 2016 at 2:10 AM, Attila Kinali  wrote:

> On Sun, 17 Apr 2016 23:03:11 +0200
> Gerhard Hoffmann  wrote:
>
> > BTW:
> > Is there a way on the BeagleBoneBlack to map the IO-Pins like an ancient
> > data bus? some addresses, data, read, write or so? Something to get into
> > an FPGA without much ado, with medium-speed data rates?
>
> Yes, you can use the GPMC subsystem for this. Have a look at the TRM
> and Documentation/devicetree/bindings/bus/ti-gpmc.txt.
> I'm sure there are also some examples of DT bindings out there.
> If you have trouble getting it working, you can ask in #beagle@freenode.
>
> Attila Kinali
>
> --
> It is upon moral qualities that a society is ultimately founded. All
> the prosperity and technological sophistication in the world is of no
> use without that foundation.
>  -- Miss Matheson, The Diamond Age, Neil Stephenson
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[time-nuts] AM335x/Beaglebone Black memory bus (was: 1 PPS 50-ohm driver)

[Attila Kinali]

On Sun, 17 Apr 2016 23:03:11 +0200
Gerhard Hoffmann  wrote:

> BTW:
> Is there a way on the BeagleBoneBlack to map the IO-Pins like an ancient
> data bus? some addresses, data, read, write or so? Something to get into
> an FPGA without much ado, with medium-speed data rates?

Yes, you can use the GPMC subsystem for this. Have a look at the TRM
and Documentation/devicetree/bindings/bus/ti-gpmc.txt.
I'm sure there are also some examples of DT bindings out there.
If you have trouble getting it working, you can ask in #beagle@freenode.

Attila Kinali

-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson
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