• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 98 subscribers
  • Views 533 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

WEC7 porting on AM335x (BeagleBone with LCD7 Cape) - how to enable touchscreen

Paul Koenig1
Prodigy 85 points

Help.

I've been working with the unified source code BSP 2.30.00 trying to figure out how to enable features from the EVM on the BeagleBone.  The backlight was giving me trouble, so I hardwired the enables on the CAPE so the display is showing properly (the cape has two PWM outputs, one for the backlight and I believe the other is to power down the LCD interface voltages).  I'm new to this process so I'm trying to learn as I go.  I used the same LCD driver as the EVM (may have changed a few settings that we used in the LINUX port).

   Right now I'm struggling with the touchscreen.  I've brought in the EVM drivers into the platform and added them to the catalog, but for some reason, it will not enable the touchscreen.

 I've edited the _bsp.bat file to set BSP_NOTOUCH=0 and I've selected the touchscreen in the catalog.  (I also tried commenting out this line).

 I've added the tsc_touch.reg and used the settings posted here in e2e.

  Is there something in the VS 2008 I'm forgetting to do?  The mouse still works, and there is Stylus options listed in the control panel.

Thanks,

Paul

  • 0
    Prodigy 85 points

    Update:

    I determined that some of my files were copied wrong, but I'm still running into problems.  Perhaps progressing slowly, at least my builds for both the EVM and the Beaglebone now have the same symptoms, the LCD works, but when I add the TOUCH feature, the screen does not make it to initialize and the LCD is not coming up.  If someone happens to know of any difference between the touch interface on the EVM versus the Beaglebone Cape, that would help.  There was some mention on another posting about audio drivers interfering with the touch screen.  I'm not sure if there is a relationship there or not.

    Thanks.

  • 0 in reply to Paul Koenig1
    Prodigy 145 points

    Dear Paul,

    Have you solved the problem. I am also trying to interface LCD 7 cape to beaglebone. Please share your Experience.

    Have you tried Remote Display on Beaglebone ?

  • 0 in reply to dasco
    Prodigy 85 points

    Hello Dasco,

    I have not gotten back to working on the resistive touchscreen portion.  The touchscreen requirement wasn't nailed down, so I moved over to other requirements.

        I'm also curious about remote display, but I need to remotely view the LCD, not view another desktop from the LCD.  Is this supported inside the compact version of Windows?

    Paul