Re: [beagleboard] PRU help needed....I don't understand pointers well enough to understand them.

http://icube-icps.unistra.fr/index.php/File:ModernC.pdf#file Try the above 308 page PDF file for starters. Click on the bird. Regards, Greg -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard"

Re: [beagleboard] problem loading SPI overlay

On Tue, Jun 13, 2017 at 8:11 PM, mzimmers wrote: > Hi - > > I really hate to ask this question here, since I'm sure I'm doing something > obviously wrong, but...I'm trying to duplicate Dr. Molloy's example in his > book, and I'm getting an error: > >

[beagleboard] problem loading SPI overlay

Hi - I really hate to ask this question here, since I'm sure I'm doing something obviously wrong, but...I'm trying to duplicate Dr. Molloy's example in his book, and I'm getting an error: mzimmers@beaglebone:/lib/firmware$ pwd /lib/firmware mzimmers@beaglebone:/lib/firmware$ cat $SLOTS 0:

Re: [beagleboard] PRU help needed....I don't understand pointers well enough to understand them.

On 6/13/2017 7:29 PM, Clark Sann wrote: > Thanks Charles. > > I understand everything except for your last statement. > > I don’t understand the difference between > *(volatile uint32_t *) > and (volatile uint32_t *). Like I said, read up on some basic C tutorials, they'll explain it

Re: [beagleboard] PRU help needed....I don't understand pointers well enough to understand them.

Thanks Charles. I understand everything except for your last statement. I don’t understand the difference between *(volatile uint32_t *) and (volatile uint32_t *). Why is the leading * needed? That is why I thought it meant a pointer to a pointer, which didn’t seem to make sense in this

Re: [beagleboard] PRU help needed....I don't understand pointers well enough to understand them.

On 6/13/2017 6:50 PM, Clark Sann wrote: > > But what I really need to know is how do I interpret this statement: > > #define GPIO0_SETDATAOUT (*(volatile uint32_t *)*(GPIO0_BASE + 0x190)) > > One way I use it is as follows: > > GPIO0_SETDATAOUT = 1u << PWM2A_OFFSET; > > What I don't

[beagleboard] PRU help needed....I don't understand pointers well enough to understand them.

I am obsessed with the BB and the PRU. I think I need treatment! With that out of the way, after slaving over my computer for the last several days, I have succeeded in writing a C program for the PRU which controls standard GPIO outputs using the Sitara memory map, getting it built using

Re: [beagleboard] Re: Does the Latest BeagleBoard-X15 Image Run Out of the Box on The Sitara am571x IDK?

Well right now we're moving forward with the BeagleBoard-X15 image on the 5728 part, but I'm still taking a look at booting the BB-X15 image on the 571x IDK - at least through today... Today I re-imaged a 16 GB SD Card with the entire BB-X15 image file and then dd'ed just the re-built MLO and

RE: [beagleboard] support

It does not exist. Gerald From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of Lê Dung Sent: Tuesday, June 13, 2017 8:25 AM To: beagleboard@googlegroups.com; beagleboard-...@googlegroups.com Subject: [beagleboard] support Dear I am looking for the hardware

[beagleboard] BBB: Do I gain anything by adding the JTAG header and using a JTAG debug pod?

BBB: Do I gain anything by adding the JTAG header and using a JTAG debug pod? -- 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

[beagleboard] Re: [beagleboard-gsoc] Re: [U-Boot] am335x_evm_usbspl_defconfig testint

On Tue, Jun 13, 2017 at 10:07:10AM +0530, 'Vignesh R' via BeagleBoard GSoC wrote: > > > On Monday 12 June 2017 10:12 PM, Jason Kridner wrote: > > > I see you submitted this defconfig: > > https://lists.denx.de/pipermail/u-boot/2016-November/272425.html > > > > I have a Google Summer of Code

Re: [beagleboard] How to install linux-headers-3.8.13-bone30

Dear Robert, thank you very much, I do this: wget http://repos.rcn-ee.net/debian/pool/main/l/linux-upstream/linux-headers-3.8.13-bone84_1wheezy_armhf.deb sudo dpkg -i linux-headers-3.8.13-bone84_1wheezy_armhf.deb and then the linux hearers have been installed. I have another problem: I use the

[beagleboard] support

Dear I am looking for the hardware design of the Beagleboard X15 embedded module in the Altium files format. Kindly share with me if you have it Special thanks. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google

[beagleboard] Re: Stretch (testing June 11,2017) LXQT GUI hangs on boot up

Seems like /dev/fb0 is not found when lightdm runs (see http://paste.debian.net/971349/) but it does exist when queried manually. Manually restarting lightdm fixes the boot up issue. ( sudo service lightdm restart) I thought I would add this to rc.local, but rc.local is missing, I guess I

[beagleboard] Re: Making SD card visible to PC in USB device mode

Hi Robert, i'm working with uname=3.8.13-bone79 and my /opt/scripts/boot/am335x_evm.sh has only 285 lines. Can i use your linked .avm335x_evm.sh (and insert after line#748 the 2 lines modprobe g_multi file=${boot_drive} cdrom=0 ro=0 stall=0 removable=1 nofua=1 ${g_network} || true

[beagleboard] Re: [U-Boot] am335x_evm_usbspl_defconfig testint

On Monday 12 June 2017 10:12 PM, Jason Kridner wrote: > I see you submitted this defconfig: > https://lists.denx.de/pipermail/u-boot/2016-November/272425.html > > I have a Google Summer of Code student intern attempting to use it and he's > seeing it hang without entering UMS mode. Details are

[beagleboard] Is anyboard enables usbkbd on uboot?

In my project, I need add usb keyboard support in uboot for recovery purpose. I have success followed RCN's uboot build instructions to build uboot for beaglebone black. Then I try to modify the configuration to add usb keyboard support. I add CONFIG_USB_KEYBOARD then build. The build is ok but

[beagleboard] Re: Beaglebone Black cant boot from emmc

Hi, I have found the reason at last. The SYS_BOOT[0] become as 1, bbb SYS_BOOT[4..0] should be 11100 or 11000. But now it becomes 11101 or 11001 , so the onboard emmc boot fails. 在 2017年6月6日星期二 UTC+8上午11:13:08，ymc1...@gmail.com写道： > > I have two beaglebone black, all two board works well in the

[beagleboard] Enabling Bluetooth on Beaglebone Black

Hi All, How to enable bluetooth on beaglebone black borad. My requirement is described below. Please let me know whether the below requirement are possible to do in beaglebone black, if yes please guide me how to do that. Requirements. 1) Enable Bluetooth on beaglebone black. 2) After that,