[beagleboard] Re: Does not detect RTC (ds1307)

Do you have pull-up resistors? --- Graham == On Monday, March 19, 2018 at 8:28:51 AM UTC-5, Paco Velasco wrote: > > When I connect the rtc it does not detect the 68 address (I2C Tool). > > I have test with 2 RTC diferent,and with the BBB I have no problem. > > Anybody knows what could be the pr

Re: [beagleboard] SPI disappears when cape plugged in?

Thanks for the reply, I believe I've already gone into the uEnv.txt and tried to explicitly do things like disable HDMI and enable the two SPI ports, (if I remember right I added those to "enable_partno=" or whatever the syntax was). But when I boot with the cape plugged in it seems to have no

[beagleboard] Re: SPI disappears when cape plugged in?

OK, my possible understanding at this point is this: Cape EEPROM has a name string on it. BBB looks at that name string first and loads the matching file device tree. For some reason, no other device tree overlays are loaded. SPI is not a part of the overlay for this cape (confirmed by looking at

[beagleboard] Reading encoder using PRU

Hi everyone, My project requires reading an encoder pulse (1,000,000+ counts/sec) and pulsing a laser (or not) in response to that count. I was wondering if anyone has a way to read in the encoder counts from the eQEP into the PRU in a manner that results in little latency. I am leaning towards

Re: [beagleboard] Beaglebone Black and LCD BB-CAPE-DISP-CT43 and Debian 9.3

Thanks Robert! I would never have guessed that the bootloader in the emmc would/could interfere with the bootloader on the SD card. I now have 9.3 running out of the box from the SD card! Thanks! Aaron -- For more options, visit http://beagleboard.org/discuss --- You received this message b

Re: [beagleboard] Re: Cape Manager for U-Boot

"this might have broke something" --> do you mean the >> dtb=am335x-boneblack-overlay.dtb] line? We have ordered a serial cable, I'll get you the boot output as soon as it arrives. Thanks so much for your help and insight on this... On Tuesday, March 20, 2018 at 6:02:57 PM UTC-7, RobertCNe

Re: [beagleboard] Re: Custom Brd Kern. Boot - Get "Unable to handle kernel paging request at virtual..." Occasionaly

Hi Robert, We've copied the 572x EVM, reva3 schematic as closely as possible, but then added some peripherals. Our custom board is utilizing 4, Micron, MT41K256 512 MiB DDR3 chips for DDR3. I believe this is on Gerald's BOM for the BB-X15. Right now our EEPROM is blank. My strategy, for th

Re: [beagleboard] Re: i2c bus speed

On Wed, Mar 21, 2018 at 12:47 AM, wrote: > I am having the same issue with my BBB. Modifying the device tree with > values that should run the I2C clock to 400 kHz does not seem to change the > speed upon rebooting. I validated that the .dtb was modified by unpacking it > into a .dts again to che

[beagleboard] Re: i2c bus speed

I am having the same issue with my BBB. Modifying the device tree with values that should run the I2C clock to 400 kHz does not seem to change the speed upon rebooting. I validated that the .dtb was modified by unpacking it into a .dts again to check if the value was 400 kHz. Is this method of

Re: [beagleboard] Re: How to get A gui on my beagle bone

On 21/03/18 17:19, Kakarla Srinivas wrote: > Please check the log and provide the solution. >   Temporary failure resolving 'repos.rcn-ee.com' In other words, your BeagleBone is unable to reach your nameserver, so doesn't know who on earth 'repos.rcn-ee.com' is. The solution is to troubleshoot y

Re: [beagleboard] Re: How to get A gui on my beagle bone

Hi , I want to install desktop environment on begale bone balck compiled kernel. I tried the script file provide by you.It is not working here is the error message. Please check the log and provide the solution. [sudo] password for debian: Err:1 http://repos.rcn-ee.com/debian stretch InReleas