I would like to use 4 analog inputs ( AIN0, AIN2, AIN4, AIN6 ). The devices are not available, but the
overlay is loaded at boot time.
Status ( user = root ):
1.) config-pin -l P9.39
ERROR: open() for /sys/firmware/devicetree/base/ocp/P9_39_pinmux/pinctrl-names failed, No such file or directory
2.) ls /sys/firmware/devicetree/base/ocp/
Display all 136 possibilities? (y or n)
A15_pinmux/ name P8_35_pinmux/ P9_42_pinmux/
#address-cells ocmcram@40300000/ P8_36_pinmux/ P9_91_pinmux/
aes@53500000/ P8_03_pinmux/ P8_37_pinmux/ P9_92_pinmux/
bone_sound/ P8_04_pinmux/ P8_38_pinmux/ phandle
can@481cc000/ P8_05_pinmux/ P8_39_pinmux/ pruss-soc-bus@4a326004/
can@481d0000/ P8_06_pinmux/ P8_40_pinmux/ ranges
cape-universal/ P8_07_pinmux/ P8_41_pinmux/ rng@48310000/
clk_mcasp0/ P8_08_pinmux/ P8_42_pinmux/ rtc@44e3e000/
clk_mcasp0_fixed/ P8_09_pinmux/ P8_43_pinmux/ serial@44e09000/
compatible P8_10_pinmux/ P8_44_pinmux/ serial@48022000/
edma@49000000/ P8_11_pinmux/ P8_45_pinmux/ serial@48024000/
elm@48080000/ P8_12_pinmux/ P8_46_pinmux/ serial@481a6000/
emif@4c000000/ P8_13_pinmux/ P9_11_pinmux/ serial@481a8000/
epwmss@48300000/ P8_14_pinmux/ P9_12_pinmux/ serial@481aa000/
epwmss@48302000/ P8_15_pinmux/ P9_13_pinmux/ sgx@56000000/
epwmss@48304000/ P8_16_pinmux/ P9_14_pinmux/ sham@53100000/
ethernet@4a100000/ P8_17_pinmux/ P9_15_pinmux/ #size-cells
gpio@44e07000/ P8_18_pinmux/ P9_16_pinmux/ spi@48030000/
gpio@4804c000/ P8_19_pinmux/ P9_17_pinmux/ spi@481a0000/
gpio@481ac000/ P8_20_pinmux/ P9_18_pinmux/ spinlock@480ca000/
gpio@481ae000/ P8_21_pinmux/ P9_19_pinmux/ ti,hwmods
gpmc@50000000/ P8_22_pinmux/ P9_20_pinmux/ timer@44e31000/
i2c@44e0b000/ P8_23_pinmux/ P9_21_pinmux/ timer@48040000/
i2c@4802a000/ P8_24_pinmux/ P9_22_pinmux/ timer@48042000/
i2c@4819c000/ P8_25_pinmux/ P9_23_pinmux/ timer@48044000/
interrupt-controller@48200000/ P8_26_pinmux/ P9_24_pinmux/ timer@48046000/
l4_wkup@44c00000/ P8_27_pinmux/ P9_25_pinmux/ timer@48048000/
lcdc@4830e000/ P8_28_pinmux/ P9_26_pinmux/ timer@4804a000/
mailbox@480c8000/ P8_29_pinmux/ P9_27_pinmux/ tptc@49800000/
mcasp@48038000/ P8_30_pinmux/ P9_28_pinmux/ tptc@49900000/
mcasp@4803c000/ P8_31_pinmux/ P9_29_pinmux/ tptc@49a00000/
mmc@47810000/ P8_32_pinmux/ P9_30_pinmux/ tscadc@44e0d000/
mmc@48060000/ P8_33_pinmux/ P9_31_pinmux/ usb@47400000/
mmc@481d8000/ P8_34_pinmux/ P9_41_pinmux/ wdt@44e35000/
3.) uname -a
Linux beaglebone 4.19.94-ti-r64 #1buster SMP PREEMPT Fri May 21 23:57:28 UTC 2021 armv7l GNU/Linux
4.) /opt/scripts/tools/version.sh
git:/opt/scripts/:[b39ec679648a6be8f25f48bd1c9784c1fc5a0c46]
eeprom:[A335BNLTEIA02046SBB22866]
model:[TI_AM335x_BeagleBone_Black]
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]
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.bb.org-overlays]
UBOOT: Loaded Overlay:[BB-BONE-eMMC1-01-00A0.bb.org-overlays]
UBOOT: Loaded Overlay:[BB-NHDMI-TDA998x-00A0]
kernel:[4.19.94-ti-r64]
nodejs:[v10.15.2]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[disable_uboot_overlay_audio=1]
uboot_overlay_options:[enable_uboot_overlay_adc=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]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade ]
pkg:[bb-cape-overlays]:[4.14.20210821.0-0~buster+20210821]
pkg:[bb-wl18xx-firmware]:[1.20210520.0-0~buster+20210520]
pkg:[kmod]:[26-1]
pkg:[librobotcontrol]:[1.0.5-git20200715.0-0~buster+20200716]
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 video=HDMI-A-1:1024x600@60e]
dmesg | grep remote
[ 69.456980] remoteproc remoteproc0: wkup_m3 is available
[ 69.645880] remoteproc remoteproc0: powering up wkup_m3
[ 69.645915] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217148
[ 69.646204] remoteproc remoteproc0: remote processor wkup_m3 is now up
[ 71.818158] remoteproc remoteproc1: 4a334000.pru is available
[ 71.829000] remoteproc remoteproc2: 4a338000.pru is available
[ 161.030454] remoteproc remoteproc1: powering up 4a334000.pru
[ 161.037099] remoteproc remoteproc1: Booting fw image pru_modulator-pru0-fw, size 64480
[ 161.037173] remoteproc remoteproc1: remote processor 4a334000.pru is now up
dmesg | grep pru
[ 71.818158] remoteproc remoteproc1: 4a334000.pru is available
[ 71.818318] pru-rproc 4a334000.pru: PRU rproc node pru@4a334000 probed successfully
[ 71.829000] remoteproc remoteproc2: 4a338000.pru is available
[ 71.829196] pru-rproc 4a338000.pru: PRU rproc node pru@4a338000 probed successfully
[ 161.030454] remoteproc remoteproc1: powering up 4a334000.pru
[ 161.037099] remoteproc remoteproc1: Booting fw image pru_modulator-pru0-fw, size 64480
[ 161.037173] remoteproc remoteproc1: remote processor 4a334000.pru is now up
dmesg | grep pinctrl-single
[ 0.944062] pinctrl-single 44e10800.pinmux: 142 pins, size 568
dmesg | grep gpio-of-helper
[ 0.957567] gpio-of-helper ocp:cape-universal: ready
lsusb
Bus 001 Device 002: ID 1a86:e5e3 QinHeng Electronics
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
END
So … BB-ADC-00A0.bb.org-overlays was loaded …
BTW, PRU 0 is in use and works fine .
5.) cat /sys/bus/iio/devices/iio:device0/in_voltage0_raw
cat: ‘/sys/bus/iio/devices/iio:device0/in_voltage0_raw’: Resource temporarily unavailable
6.) ll /sys/bus/iio/devices/iio:device0/in_voltage*
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage6_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage3_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage7_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage0_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage4_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage1_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage5_raw
0 -rw-rw-r-- 1 root gpio 4096 Sep 24 13:36 /sys/bus/iio/devices/iio:device0/in_voltage2_raw
So what is missing? I’m running out of ideas …
Thanks for any good hint
Peter