Re: Hi guys, does any of you have experience with touchscreen controllers?

Michael Trimarchi
2010-04-26T10:52:00Z

Hi

Fabio Giovagnini wrote:
> Thanks a lot.
> But where is a good example for starting from?
>
> Thanks
>
http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&ty646

You can find here an example :)

Michael
>
>
> In data lunedì 26 aprile 2010 12:41:13, Michael Trimarchi ha scritto:
> : > hi fabio,
>
>> Fabio Giovagnini wrote:
>>
>>> Hi Dale,
>>> maybe I need to be more clear about my condition.
>>> 1) I connected the ads7843 to general I/O ports because the SPIs
>>> available on sh2a7203 have been be used for other functions;
>>>
>> It is not a big problem, you can also bitbang on the gpio pin.
>>
>>
>>> 2) My real problem is the following: I wrote an ADS7843 device driver as
>>> a button driver of the input subsystem. I configured the ads7843 with INT
>>> enabled; so when the touch is pressed I have a burst of IRQ. The IRQ
>>> handler read the ads7843 and return to the input subsystem the abs values
>>> of the touchscreen.
>>>
>> I think tha rewrite the code it is not so usefull but reuse the code
>> using a bitbang interface
>> it's more simple and don't need a lot of testing
>>
>> Michael Trimarchi
>>
>>
>
>