[beagleboard] UART-1 on Kernel 4 - angstrom-v2015.06

Okay, so i have a custom built image using the previous angstrom release (2014-xx) , that was running on kernel 3.8 and had no issue with the DTS or anything. IT was actually quite straightforward to use, just adding a line in uEnv and the UART loaded. Now, with the new Kernel 4, i'm not

Re: [beagleboard] Release date update?

I just slipped it out 1 month. Board is throwing off stuff and failing FCC testing. We have some work to do to kill some frequencies. Gerald On Fri, Oct 30, 2015 at 3:28 PM, Gerald Coley wrote: > Wiki says mid November. So far we are holding to that. > > Gerald > > On

Re: [beagleboard] Recovering eMMc Data over JTAG?

Yes as soon as the people get to work and can reply. Gerald On Oct 30, 2015 6:33 AM, "'andrew stillie' via BeagleBoard" < beagleboard@googlegroups.com> wrote: > Hi Gerald, > > I requested the RMA, should I get an email confirmation? > > On Fri, 30 Oct 2015 11:27 Gerald Coley

[beagleboard] Recovering eMMc Data over JTAG?

Hi there, I recently connected my beaglebone with reverse polarity 5v on the power jack. The BBB is now unresponsive - no flashing user leds at startup - no ability to SSH over usb. I have some work stored on the device - Is it possible to save this data from emmc if I buy a jtag debugger?

Re: [beagleboard] Recovering eMMc Data over JTAG?

If the board is blown and will not boot, the JTAG will not do you any good. If you send it in for repair, assuming we can repair the board which we usually can, there is a good chance the eMMC is good and we can send it back to working. Just note that you want to keep the eMMC in the RMA request.

Re: [beagleboard] Recovering eMMc Data over JTAG?

Hi Gerald, I requested the RMA, should I get an email confirmation? On Fri, 30 Oct 2015 11:27 Gerald Coley wrote: > If the board is blown and will not boot, the JTAG will not do you any good. > > If you send it in for repair, assuming we can repair the board which we >

[beagleboard] clkout2_pin

Hi, I wanted to know what was the purpose of clkout2_pin before ? If i'm not wrong, we don't need it anymore for the beaglebone black ? Micka, -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups

Re: [beagleboard] Recovering eMMc Data over JTAG?

Ok I requested the RMA on Wednesday evening. On Fri, 30 Oct 2015 11:42 Gerald Coley wrote: > Yes as soon as the people get to work and can reply. > > Gerald > On Oct 30, 2015 6:33 AM, "'andrew stillie' via BeagleBoard" < > beagleboard@googlegroups.com> wrote: > >> Hi

Re: [beagleboard] Recovering eMMc Data over JTAG?

Let me check. Gerald On Fri, Oct 30, 2015 at 6:54 AM, 'andrew stillie' via BeagleBoard < beagleboard@googlegroups.com> wrote: > Ok I requested the RMA on Wednesday evening. > > On Fri, 30 Oct 2015 11:42 Gerald Coley wrote: > >> Yes as soon as the people get to work and

[beagleboard] Re: Installing Tomcat in Angstrom Linux

Hi > can any one tell me how to start the tomcat server in Beaglebone Debian. bcs i want to run a servlet program . Thanks Anant -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To

Re: [beagleboard] Release date update?

Wiki says mid November. So far we are holding to that. Gerald On Fri, Oct 30, 2015 at 3:15 PM, David Culp wrote: > Any release date update? When should we see this for sale? > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message

[beagleboard] Why do I lost USB connection after disabling HDMI in uEnv.txt?

I'm using BBB RevC, and the kernel version is 3.8.13-bone72. When BBB boot up with eMMC, I disabled HDMI in /boo/uEnv.txt like below: ##Disable HDMI optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN When I reboot the BBB, I cannot visit BBB through USB connection. The USB connection

Re: [beagleboard] ADC & PRU?

You can't feed more than 1.8V to ADC without damaging it. You can, however, scale it with a simple resistor divider (resistor R1 connected between the ground and second resistor R2, which is then connected to your signal), and hook the ADC to the middle of the divider where it will be scaled

[beagleboard] Re: ADC & PRU?

Hi John! As Przemek mentioned, a simple voltage divider can scale the input voltage. Additionaly I use a LED (orange color) between the ADC input and ground in order to block overvoltage. (The LED starts to light up at 1V5 and consumes full power at 1V8. 1 / 6 of the ADC resolution get lost

Re: [beagleboard] Re: ADC & PRU?

> > *BBB and Linux are new to me. One of the things I would like to do is > compute a ratio between two voltages, each of which might exceed 1.8 VDC. > One solution might be to use DACs to sent feedback voltages to operational > amplifiers that are supplied by 1.8 VDC. The goal is to determine

Re: [beagleboard] ADC & PRU?

I need to maintain the ratio of the two voltages and I don't know how high they will get. Milliseconds is OK, but faster is better. I didn't realize the PRU's could do ADC. At 11:00 AM 10/30/2015, Przemek Klosowski wrote: You can't feed more than 1.8V to ADC without damaging it. You

[beagleboard] Re: Why do I lost USB connection after disabling HDMI in uEnv.txt?

Sorry, it's issue from hardware connection. Now it works On Friday, October 30, 2015 at 11:41:39 AM UTC-4, Mian Tang wrote: > > I'm using BBB RevC, and the kernel version is 3.8.13-bone72. When BBB boot > up with eMMC, I disabled HDMI in /boo/uEnv.txt like below: > ##Disable HDMI >

[beagleboard] Configure Beaglebone to access usb0 from host PC. (Cannot ssh to beaglebone through USB)

Hi, I am using ubuntu 14.04 (from Robert Nelson ) with a custom 3.15.10-bone8 kernel on Beaglebone Black. HDMI is disabled. When I plug the board to a PC, Beaglebone powers up but the PC does not recognize that a USB device is connected to it. I have installed the drivers

Re: [beagleboard] Re: ADC & PRU?

By the way, the ADC gives out a value of 0-4095. So scaling voltage is really simple. Say you get a value of 4024 for a reading. In order to get a reading from 0-1.8v from this . . . ((4024 / 4096) * 1.8) or 1.768359375v The max voltage on the pins still can not exceed 1.8v, this is why one

[beagleboard] Re: ADC & PRU?

BR, Thanks for the info. I'll take a look at libpruio. At 11:43 AM 10/30/2015, TJF wrote: Hi John! As Przemek mentioned, a simple voltage divider can scale the input voltage. Additionaly I use a LED (orange color) between the ADC input and ground in order to block overvoltage. (The LED

Re: [beagleboard] ADC & PRU?

Yes, I like the method shown in the schematic. Once the ADC voltages are known for a certain analog input voltage (equal on each channel) the D/A voltages can be compared and the math done. A few milliseconds to determine the voltage ratio is fast enough. If I can somehow shorten that

Re: [beagleboard] Re: ADC & PRU?

Thanks for the tip. That sample rate is plenty as long as other things can be done while the sampling continues. I'll search Beaglebone PRU + ADC. At 11:59 AM 10/30/2015, William Hermans wrote: BBB and Linux are new to me. One of the things I would like to do is compute a ratio between

[beagleboard] ADC & PRU?

I'm a hobbyist with a recent BBB and I want to use a couple of ADC channels in real time (alternate). As nearly as I can tell, this is not supported by the two risk units. Have I missed something? BBB and Linux are new to me. One of the things I would like to do is compute a ratio between

Re: [beagleboard] CAN bus speed issue on Beaglebone Black

I've not seen this problem with 2 Rev C's and a single A5A. Is it possible your external device is communicating at 135kbit/s ? On Fri, Oct 30, 2015 at 11:12 AM, wrote: > I'm using DCAN0 on the Beaglebone Black to communicate with other devices > on a CAN bus at 125

[beagleboard] Re: How to connect a Host-controlled battery charger to BBB using I2C ?

So, I got to a code, that works, https://github.com/chintanp/i2c-charger/blob/master/charger.c It updates the voltage delivered by the charger every few seconds, similarly other parameters like the charging current can be tweaked. Thanks a lot to all the folks, ;) On Wednesday,

[beagleboard] Release date update?

Any release date update? When should we see this for sale? -- 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