Re: [beagleboard] Tuning the watchdog timer - correct place?
I'd ask the question are these register's accessable from the PRU my experience is dated and I'm not a Linux guy but most OS protect Access to certain registers I briefly looked at TRM the WDOG is enabled by default probably during boot. To set it or change the clock source you disable it which I doubt Linux would like from PRU side but maybe I'm wrong. I'd look at the interconnect block diagram to see if PRU has access to the registers. Google am335x watchdog c code I see discussion about Kernel configuration. Typically on non Linux ARM side project TI provided quite a bit of example code for customer boot code options that's where I always start but that code isn't always in the public domain and in your case isn't relavent after Linux takes over you may have to let ARM Linux side handle it. I'd look at PRU register memory map unless someone in here has done it from PRU. Good luck Sent from Yahoo Mail on Android On Mon, Jun 3, 2019 at 7:07 AM, Hugh Frater wrote: Where does one go to tune the watchdog timer? Is it a kernel-recompilation-required thing, or can it be done through uBoot? Or should I just use my PRU code to tune the watchdog control register when it boots? This would be the easiest option for me, if someone can point me at the correct area if the AM335XTRM? I had a look in there and couldn't find the correct registers. I'd like it to run about 10 seconds if possible for my application. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/2d6c30bf-484e-49e6-ab9d-582535f60a84%40googlegroups.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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/1116636071.10336465.1559610141609%40mail.yahoo.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Using hardware without cape-universal
I am using the lxqt image, booting to multi-user target instead of the desktop. I also tried with IoT image but the Kernel itself takes 25 sec. to boot, not mentioning the userland. I believe the cape-universal is enabled there by default, too. Is cape-universal necessary to use the hardware like can bus, or is it possible to disable it? If so, how can I enable can1 without cape-universal? Regards Bora -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/8baedda3-7f82-4023-9a53-f5e797b9777d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Please provide source and model number for purcahsing serial cable for BeagleBoard-xM ?
On Mon, Jun 3, 2019 at 9:32 AM Jani wrote: > > I need to get started with BeagleBoard-xM. > > I need to purchase serial cable that connects to RS232 DB9 female connector > on BeagleBoard-xM and USB connector on PC. > > Following is the description of serial cable from System Reference Manual: > > A USB to Serial cable can be plugged directly into the Beagle. Unlike on the > original version of the Beagle, a straight through non null modem cable is > required. The cable you used on the BeagleBoard will NOT > work on the –xM version. A standard male to female straight DB9 cable may be > used or you can use a USB to serial adapter that will plug directly into the > board without the need for any other cables. > > Please provide part number or model number and source (i.e. Mouser > Electronics) for purchasing the correct cable. https://www.digikey.com/products/en?keywords=768-1013-ND Regards, -- Robert Nelson https://rcn-ee.com/ -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYhL8zQnspL9oioz%2Bf4i0iKhjg%2B3oJr2uyq%3DLAMT9VAhHQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Please provide source and model number for purcahsing serial cable for BeagleBoard-xM ?
I need to get started with BeagleBoard-xM. I need to purchase serial cable that connects to RS232 DB9 female connector on BeagleBoard-xM and USB connector on PC. Following is the description of serial cable from System Reference Manual: A USB to Serial cable can be plugged directly into the Beagle. Unlike on the original version of the Beagle, a straight through non null modem cable is required. The cable you used on the BeagleBoard will NOT work on the –xM version. A standard male to female straight DB9 cable may be used or you can use a USB to serial adapter that will plug directly into the board without the need for any other cables. Please provide part number or model number and source (i.e. Mouser Electronics) for purchasing the correct cable. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/87ae6eb7-969e-4394-9726-2f1da3a415fe%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: Tuning the watchdog timer - correct place?
Update: page 4492 of the TRM details the watchdog timer. I'll probably use the PRU to configure the registers unless there is an easier way... On Monday, 3 June 2019 13:07:49 UTC+1, Hugh Frater wrote: > > Where does one go to tune the watchdog timer? Is it a > kernel-recompilation-required thing, or can it be done through uBoot? > > Or should I just use my PRU code to tune the watchdog control register > when it boots? This would be the easiest option for me, if someone can > point me at the correct area if the AM335XTRM? I had a look in there and > couldn't find the correct registers. > > I'd like it to run about 10 seconds if possible for my application. > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/5aef9f7c-4aa3-4f56-9fbf-0e3fff17538f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Tuning the watchdog timer - correct place?
Where does one go to tune the watchdog timer? Is it a kernel-recompilation-required thing, or can it be done through uBoot? Or should I just use my PRU code to tune the watchdog control register when it boots? This would be the easiest option for me, if someone can point me at the correct area if the AM335XTRM? I had a look in there and couldn't find the correct registers. I'd like it to run about 10 seconds if possible for my application. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/2d6c30bf-484e-49e6-ab9d-582535f60a84%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: How to interface this 16x2 RGB LCD?
this Driver IC is SPLC780D， it support 3.3V. you can find spec here, in page23. https://pdf1.alldatasheet.com/datasheet-pdf/view/126648/ETC1/SPLC780D.html the only problem is, I guess, when you connect to 3.3V, the display shows very light image. when you use 3.3V, the IC won't damage. you can try:) i'm working in www.hello-lighting.com, as a LCD/TFT engineer, any question about LCD/TFT, you can write to me. best regards! 在 2018年4月2日星期一 UTC+8上午9:59:57，engine...@gmail.com写道： > > I am planning to interface this 16x2 LCD (datasheet: > https://focuslcds.com/product/16x2-rgb-character-lcd-c162albfgs16wt55pab) > from focusLCDs.com to the Pocket Beagle. > > But I don't know where to start. > > Thanks and I am looking forward to your help. > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/aaf01d86-6b6a-4273-b0e7-5b7bd475d661%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
