Vinicius..
Thanks for looking from your phone!
Are you saying that SHARE_MEM is incorrect? I took that directly from
Molloy's examples in Exploring BeagleBone.
Maybe it looks incorrect on your phone?
Walter
On Tuesday, May 4, 2021 at 1:09:35 PM UTC-4 vinicius...@gmail.com wrote:
> Hi Walter,
>
> I’m on the cellphone and that is a little hard to read your code? But I
> did find the offset of the pru memory , because you need allocate the
> memory inside the pru memory address and you is allocating at the 1000
> address
>
> Sent from my iPhone
>
>
> Em 4 de mai. de 2021, à(s) 13:16, Walter Cromer <
> wal...@edenconceptsllc.com> escreveu:
>
> I'm on a BBB Wireless running
>
>
> Linux beaglebone 4.19.94-ti-r61 #1buster SMP PREEMPT Wed Mar 31 15:23:20
> UTC 2021 armv7l GNU/Linux
>
> The version.sh output is at the end of this post.
>
> I need to put readings from two analog inputs into two arrays so I can do
> some calculations on them. Basically, when one of the inputs exceeds a
> threshold, I'll do these calculations on the values in the arrays.
> Essentially these will be two ring buffers.
> I don't have a lot of variables or a lot of code really but it doesn't
> take much to overflow the default stack and heap or 8k of RAM local to each
> PRU. So, I'm thinking the solution is to force these two arrays into the
> 12k shared RAM since I'm only using PRU0 in this application.
>
> I've been trying to follow Molloy's example and Mark Yoder's PRUCookbook
> example but when I compile the PRU code it freezes the whole system which I
> suspect is because of a stack or heap overflow.
>
> Here are the code snippets. What am I doing wrong and/or what could I do
> differently?
>
> #define SHARE_MEM 0x00010000
>
> // declaring int arrays to go in PRU Shared memory space
>
> #define E_RING_BUFFER_SIZE 5 // each array will have 5 elements;
> ultimately need 50 each
>
> volatile unsigned int *DetTSampleSet = (unsigned int *) SHARE_MEM;
> volatile unsigned int *DetBSampleSet = (unsigned int *) (SHARE_MEM +
> (E_RING_BUFFER_SIZE * sizeof(unsigned int))); ;
> .
> .
> .
> .
> // putting data from analog sensor read into array element
> Data = HWREG(SOC_ADC_TSC_0_REGS + TSC_ADC_SS_FIFODATA(0));
> StepRead = (Data >> 16) & 0xF;
> RawAnalog = Data & 0xFFF;
> switch (StepRead)
> {
> case 0:
> DetTSample = RawAnalog;
> //DetTSampleSet[pnr]=RawAnalog;
> break;
> case 1:
> DetBSample = RawAnalog;
> DetBSampleSet[0]=RawAnalog;
> .
> .
> .
> .
>
>
> debian@beaglebone:/var/lib/cloud9$ sudo /opt/scripts/tools/version.sh
> git:/opt/scripts/:[b39ec679648a6be8f25f48bd1c9784c1fc5a0c46]
> eeprom:[A335BNLTBWA52027BBWG0227]
> model:[TI_AM335x_BeagleBone_Black_Wireless]
> dogtag:[BeagleBoard.org Debian Buster IoT Image 2020-04-06]
> bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot
> 2019.04-00002-g07d5700e21]:[location: dd MBR]
> bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot
> 2018.03-00002-gac9cce7c6a]:[location: dd MBR]
> UBOOT: Booted Device-Tree:[am335x-boneblack-uboot-univ.dts]
> UBOOT: Loaded Overlay:[AM335X-PRU-RPROC-4-19-TI-00A0]
> UBOOT: Loaded Overlay:[BB-ADC-00A0]
> UBOOT: Loaded Overlay:[BB-BBBW-WL1835-00A0]
> UBOOT: Loaded Overlay:[BB-BONE-eMMC1-01-00A0]
> UBOOT: Loaded Overlay:[BB-I2C2-RTC-DS3231]
> UBOOT: Loaded Overlay:[BB-W1-P9.12-00A2]
> kernel:[4.19.94-ti-r61]
> nodejs:[v10.15.2]
> /boot/uEnv.txt Settings:
> debian@beaglebone:/var/lib/cloud9$ sudo /opt/scripts/tools/version.sh
> [sudo] password for debian:
> git:/opt/scripts/:[b39ec679648a6be8f25f48bd1c9784c1fc5a0c46]
> eeprom:[A335BNLTBWA52027BBWG0227]
> model:[TI_AM335x_BeagleBone_Black_Wireless]
> dogtag:[BeagleBoard.org Debian Buster IoT Image 2020-04-06]
> bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot
> 2019.04-00002-g07d5700e21]:[location: dd MBR]
> bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot
> 2018.03-00002-gac9cce7c6a]:[location: dd MBR]
> UBOOT: Booted Device-Tree:[am335x-boneblack-uboot-univ.dts]
> UBOOT: Loaded Overlay:[AM335X-PRU-RPROC-4-19-TI-00A0]
> UBOOT: Loaded Overlay:[BB-ADC-00A0]
> UBOOT: Loaded Overlay:[BB-BBBW-WL1835-00A0]
> UBOOT: Loaded Overlay:[BB-BONE-eMMC1-01-00A0]
> UBOOT: Loaded Overlay:[BB-I2C2-RTC-DS3231]
> UBOOT: Loaded Overlay:[BB-W1-P9.12-00A2]
> kernel:[4.19.94-ti-r61]
> nodejs:[v10.15.2]
> /boot/uEnv.txt Settings:
> uboot_overlay_options:[enable_uboot_overlays=1]
>
> uboot_overlay_options:[uboot_overlay_addr4=/lib/firmware/BB-W1-P9.12-00A0.dtbo]
> uboot_overlay_options:[disable_uboot_overlay_video=1]
> uboot_overlay_options:[disable_uboot_overlay_audio=1]
>
> uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-19-TI-00A0.dtbo]
> uboot_overlay_options:[enable_uboot_cape_universal=1]
> uboot_overlay_options:[dtb_overlay=/lib/firmware/BB-I2C2-RTC-DS3231.dtbo]
> pkg check: to individually upgrade run: [sudo apt install --only-upgrade
> <pkg>]
> pkg:[bb-cape-overlays]:[4.14.20210401.0-0~buster+20210401]
> pkg:[bb-wl18xx-firmware]:[1.20200322.0-0rcnee0~buster+20200322]
> pkg:[kmod]:[26-1]
> pkg:[librobotcontrol]:[1.0.4-git20190227.1-0rcnee0~buster+20190327]
> pkg:[firmware-ti-connectivity]:[20190717-2rcnee1~buster+20200305]
> groups:[debian : debian adm kmem dialout cdrom floppy audio dip video
> plugdev users systemd-journal bluetooth netdev i2c gpio pwm eqep remoteproc
> admin spi iio docker tisdk weston-launch xenomai cloud9ide]
> cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1
> root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M
> net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet]
> dmesg | grep remote
> [ 69.919456] remoteproc remoteproc0: wkup_m3 is available
> [ 70.232036] remoteproc remoteproc0: powering up wkup_m3
> [ 70.232072] remoteproc remoteproc0: Booting fw image
> am335x-pm-firmware.elf, size 217148
> [ 70.232362] remoteproc remoteproc0: remote processor wkup_m3 is now up
> [ 72.486601] remoteproc remoteproc1: 4a334000.pru is available
> [ 72.507930] remoteproc remoteproc2: 4a338000.pru is available
> dmesg | grep pru
> [ 72.486601] remoteproc remoteproc1: 4a334000.pru is available
> [ 72.486792] pru-rproc 4a334000.pru: PRU rproc node pru@4a334000 probed
> successfully
> [ 72.507930] remoteproc remoteproc2: 4a338000.pru is available
> [ 72.508098] pru-rproc 4a338000.pru: PRU rproc node pru@4a338000 probed
> successfully
> dmesg | grep pinctrl-single
> [ 0.951056] pinctrl-single 44e10800.pinmux: 142 pins, size 568
> dmesg | grep gpio-of-helper
> [ 0.964776] gpio-of-helper ocp:cape-universal: ready
> lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> END
>
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