ADS7846 on DM355 EVM

Kevin,

The SPI interface pins on the ADS7846 can be connected to any of the DM355 SPI interfaces

The dm355 SPI userguide(http://focus.ti.com/lit/ug/sprued4b/sprued4b.pdf) will help you to learn how to use the SPI and its signal connections needed.

and with regards to the ADS IRQ Pin, I am not familiar on what it is supposed to do, (looks like some sort of interrupt request) so if that is the case you can see if there are any of the dedicated GPIOs with interrupt to the dm355 capability to interface it via that way.  For details on how to setup the GPIOS etc on dm355 please refer to the GPIO userguide (http://focus.ti.com/lit/ug/spruee6b/spruee6b.pdf)

Additionally the dm355 datasheet section 5.6 provides a brief summary of the GPIO peripheral.

Hope this puts you on the right path.

regards,

miguel

Hi  miguel,

                 It seems    that  the  driver of ads7846 (for touch screen) in DVSDK1.30  not work on DM355 EVM. 

               I got errors when compiling it.

              Is there any touch screen solution for Dm355? 

Thanks a lot!

regards

kevin

Kevin,

unfortunately I am not aware of any other touch screen solutions for dm355.

You might try posting this question on the Embedded Linux forum for driver related support, or I can move this post there if you want to.

regards,

miguel

thank you miguel.   I move this post  to "Support > Embedded Software > Linux forum " .