Re: [beagleboard] Re: Touchscreeen automatically clicking at random points
Hello Piotr, Thanks for quick reply. Sorry I forgot to mention that I am working with resistive touch. Is there any workaround for resistive touch to solve this problem. Thanking you. Regards, Kishor On Fri, Apr 18, 2014 at 8:23 PM, Piotr Murawski michc...@o2.pl wrote: Hi, Actually I have posted what I have discovered. The problem I faced was with 10 inch screen, with theLCD7CAPE every thing works fine. Touch screen has a capacitance, and there is a charging cycle, which is used in initial touch detecting. If the charging faze is too short, touch screen voltage is too low and this is detected as touch event. I have changed CHARGEDLY_OPENDLY from 1 to 10 (ti_am335x_tscadc.h), 1 is definitely too short. Regards, Piotr. W dniu piątek, 18 kwietnia 2014 12:22:45 UTC+2 użytkownik Kishor Dhanawade napisał: Hello, I am working with Beaglebone black board with ubuntu-12.04LTS (3.8.13). I have interfaced 7 LCD with BBB. LCD is working properly. Touch is also detecting but problem with touch is that it is clicking automatically at random points on the screen. Due to that I unable to run my application which has lots of button on screen. And touch is automatically clicking any button on the screen. I searched lot to solve this problem. But I didn't get solution for it. Please help me to resolve this problem. Thanking you. Regards , kishor -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/BqBNxy3zSBU/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: Touchscreeen automatically clicking at random points
Piotr, everything works fine, because the kernel has been modified to filter the noise that came when you remove your finger. I don't know why, but it happen... Micka, On Apr 18, 2014 4:53 PM, Piotr Murawski michc...@o2.pl wrote: Hi, Actually I have posted what I have discovered. The problem I faced was with 10 inch screen, with theLCD7CAPE every thing works fine. Touch screen has a capacitance, and there is a charging cycle, which is used in initial touch detecting. If the charging faze is too short, touch screen voltage is too low and this is detected as touch event. I have changed CHARGEDLY_OPENDLY from 1 to 10 (ti_am335x_tscadc.h), 1 is definitely too short. Regards, Piotr. W dniu piątek, 18 kwietnia 2014 12:22:45 UTC+2 użytkownik Kishor Dhanawade napisał: Hello, I am working with Beaglebone black board with ubuntu-12.04LTS (3.8.13). I have interfaced 7 LCD with BBB. LCD is working properly. Touch is also detecting but problem with touch is that it is clicking automatically at random points on the screen. Due to that I unable to run my application which has lots of button on screen. And touch is automatically clicking any button on the screen. I searched lot to solve this problem. But I didn't get solution for it. Please help me to resolve this problem. Thanking you. Regards , kishor -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: Don't conect to lan when reboots using commands
I see nothing wrong with your interfaces file. I can't think of a thing that would prevent it from reconnecting on reboot. What does dmesg say? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] VBAT voltage value
Thanks for your answer. And is there any special reason for powering VBAT with 4.2V instead of 3.6V? (I am asking this because I designed a board with the BeagleBoard schematics, and after 1 hour working (configuring linux on it through UART), the board stopped responding, the VDD1 dc/dc got broken and now it gives 2.6V to the OMAP instead of the 1.3V. I was powering VBAT with 3.6V Thank you. El viernes, 18 de abril de 2014 21:57:32 UTC+2, Gerald escribió: The 4.2 value is correct. That is the way I designed it. 3.6V is a typical value. Gerald On Fri, Apr 18, 2014 at 1:37 PM, 4ndr...@gmail.com javascript: wrote: Hello. I am checking the voltage value of VBAT and I found that it should be 4.2V according to the image VBAT1.png attached here (obtained from the SRM of the Beagleboard). The problem is that I checked the TPS65950 datasheet and I found that the nominal value for VBAT is 3.6V, according to the images VBAT2.png and VBAT3.png attached here (obtained from the TPS65950 datasheet). Can someone clarify me this? thanks in advance. Andrés Cecilia Luque -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] TFT touch screen , Other than in LCD cape.
Hello People, I refer all the documents related to beagle bone LCD cape, I think they used NewHeaven Display. *(http://www.newhavendisplay.com/specs/NHD-4.3-480272EF-ATXL-CTP.pdf*) But I am going to make my own hardware, and I have a tft display - ( *https://www.displaytech-us.com/sites/default/files/display-data-sheet/DT028ATFT-v21.pdf* ) *By comparing Beagle LCD cape(already existing), I will take care of the hardware design, and will do changes according to my tft display. But will I have to also make changes in OS source code / kernel (for hardware that is differ from beagle bone LCD cape)??? I think if we connect already existing beagle bone LCD cape to BBB, then we doesn't have to make any software change, It run Angstrom and other OS. so cany you please help me ,that for my own hardware of lcd interfacing, will I have to chages in OS source code or kernel?? I am very new to Operating system.* Please help me guyz.. Thankss in advance.. Chirag Panchal -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: PWM in the 3.13 Kernel
Hi, Check my comment here: http://thread.gmane.org/gmane.comp.hardware.beagleboard.user/65797 -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Is memory spec in dts shipped with BBB A6A Angstrom 3.8.13 wrong?
Really hard to categorize this.
I have BBB A6A running Angstrom distro:
Linux beaglebone 3.8.13 #1 SMP Wed Sep 4 09:09:32 CEST 2013 armv7l GNU/Linux
I'm working on using DDR to pass information back and forth to PRU, so
looking at dts and memory assignment.
Either the dts (actually, dtb converted to dts using dtc) is wrong, or I
don't really understand it as well as I thought, or I can't read hex any
more...
The BBB ships with 512MB DDR3 RAM. That's 0x2000_. However, the dts(b)
in /boot/am335x-boneblack.dtb has this entry:
memory { device_type = memory; reg = 0x8000 0x1000l; };
Am I missing something here, or is my bone setup to only use 256MB of the
512MB available?
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[beagleboard] BeagleBone Black formatted by mistake
While formatting another USB drive, the BeagleBone Black which was connected in the other USB port got formatted..Now its not booting from external memory card as well..I followed the steps as mentioned in this blog.. http://derekmolloy.ie/write-a-new-image-to-the-beaglebone-black/ still the board doesn't boot..Any solutions?? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Impossible to find a supplier
I have looked through all of the suppliers close to me, which is in Germany and Great Britain, and not a single one has the BeagleBoard Blank in stock!? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
