Re: [Kernel-discuss] Axim X50 touchscreen patch

From: pHilipp Zabel <philipp.zabel_at_gmail.com>
Date: Thu, 15 Feb 2007 15:37:47 +0100

On 2/15/07, Paul Sokolovsky <pmiscml_at_gmail.com> wrote:
> Hello Pierre,
>
> Wednesday, February 14, 2007, 11:55:09 PM, you wrote:
>
> > Hi all,
>
> > you'll find attached a patch with the following modifications :
> > - add ADS7846/TSC2046 touchscreen support to Axim X50 (thanks for this
> > nice job, Paul !)
>
> So, "National" protocol worked finally? If so, that's all due to
> work of Philipp Zabel and Anton Vorontsov!
>
> We'll need to do more tweaks to it for sure, but I'm glad theory
> that SSP protocols mostly equivalent works.

The main difference is that Motorola SPI is full duplex, while
National Semiconductor Microwire is not. TSC2046 supports both full
duplex communication in its
16clock / 15clock per conversion modes as well as Microwire in
16clock per conversion mode.

I still can't get SPI mode to work when
reading/writing 3x 8bit values instead of 1x 24bit :(

regards
Philipp
Received on Thu Feb 15 2007 - 09:37:48 EST

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