Some Questions on the SIE Xburst-FPGA Interface

Andrés Calderón andres.calderon at emqbit.com
Mon Dec 27 17:50:51 EST 2010


On Mon, Dec 27, 2010 at 4:48 PM, Cristian Paul Peñaranda Rojas
<paul at kristianpaul.org> wrote:
> On Mon, Dec 27, 2010 at 03:46:01PM -0500, Andres Mauricio Asprilla Valdes wrote:
>> Hi Cristian. I think this can help you. I implemented an UART interface in the  SIE FPGA and I did the linux driver to read and write data to a chip that managed a capacitive keyboard See http://en.qi-hardware.com/wiki/Teclado_Capacitivo for reference. The data is send at 9600 baud with 8 data bits and 1 stop bit. You can see how I read the data and send it to the kernel space that recognised that UART as /dev/ttyFPGA.
>
> I was thiking in UART too, so, i like ask you, what's the maximun speed wich is posible to
> achieve your implementation?
>
>
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FPGA as SRAM example, probably needs some time optimizations. But is a
very good start point:

http://projects.qi-hardware.com/index.php/p/nn-usb-fpga/source/tree/542c92830165534244b6375cc3866280d562daee/Examples/sram

    Andrés Calderón
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    Email: andres.calderon at emqbit.com
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