This is designed for STM32MP157F-DK2
It costs me almost two years.
FPS
(while true; do export fps=`cat /sys/kernel/debug/dri/0/state | grep fps -m1 | grep -o '[0-9]\+'`; echo display ${fps}fps; sleep 4; done) &
curl
curl http://121.5.149.236/snow.mpg --verbose --output snow.mpg
gstreamer
Internet file
Run After Exit SSH
nohup gst-launch-1.0 playbin uri=http://XX.157.101.63/watch.mp4 &
local file
gst-launch-1.0 playbin uri=file:///home/root/watch.mp4
/* Display in framebuffer (usually a TFT LCD)*/
gst-launch-1.0 filesrc location=/home/root/littleVGL/maria.mpg ! decodebin ! videoconvert ! fbdevsink device=/dev/fb0
#test
gst-launch-1.0 -v videotestsrc ! video/x-raw,format=YUY2 ! videoconvert ! autovideosink
#playbin or filesrc >> pipe
gst-launch-1.0 playbin uri=file:///home/root/Video/sight.mp4 ! decodebin ! videoconvert ! autovideosink
gst-launch-1.0 filesrc location=/home/root/Video/sight.mp4 ! decodebin ! videoconvert ! videoscale ! video/x-raw,width=320,height=240,framerate=30/1 ! autovideosink
#play online video
gst-launch-1.0 uridecodebin uri=http://XX.157.101.63/Watch.mp4 ! videoscale ! video/x-raw,width=800,height=480 ! autovideosink
ffmpeg
display video information
ffmpeg -i Video/Watch.mp4 w.mpeg
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9.3.0 (GCC)
configuration: --disable-stripping --enable-pic --enable-shared --enable-pthreads --cross-prefix=arm-ostl-linux-gnueabi- --ld=u=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/recipe-sysroot' --cc='arm-ostl-linux-gnueabi-gcc -mthumb -mfpu=neon-vfpsroot=/recipe-sysroot' --cxx='arm-ostl-linux-gnueabi-g++ -mthumb -mfpu=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/reux --enable-cross-compile --extra-cflags=' -O2 -pipe -g -feliminate-unused-debug-types -fmacro-prefix-map==/usr/src/debug/ffmpegebug/ffmpeg/4.2.2-r0 -fdebug-prefix-map=/recipe-sysroot= -fdebug-prefix-map=/recipe-sysroot-native= -mthumb -mfpu=neon-vfpv4 -mf/recipe-sysroot' --extra-ldflags='-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed' --sysroot=/recipe-sysroot --libdir=/usr/lib --shpeg --disable-mipsdsp --disable-mipsdspr2 --cpu=cortex-a7 --pkg-config=pkg-config --disable-static --enable-alsa --enable-avcodeenable-avformat --enable-avresample --enable-bzlib --disable-libfdk-aac --enable-gpl --disable-libgsm --disable-indev=jack --disibmfx --disable-libmp3lame --disable-openssl --enable-postproc --disable-sdl2 --disable-libspeex --enable-swresample --enable-sw --disable-vdpau --disable-libvpx --enable-libx264 --disable-libx265 --enable-libxcb --enable-outdev=xv --enable-zlib
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Video/Watch.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Duration: 00:03:02.37, start: 0.000000, bitrate: 714 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 800x480 [SAR 16:15 DAR 16:9], 578 kb/s, 29.97 fps, 29.97
Metadata:
handler_name : ISO Media file produced by Google Inc. Created on: 01/03/2019.
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
handler_name : ISO Media file produced by Google Inc. Created on: 01/03/2019.
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> mpeg1video (native))
Stream #0:1 -> #0:1 (aac (native) -> mp2 (native))
Press [q] to stop, [?] for help
[mpeg @ 0x60a10] VBV buffer size not set, using default size of 230KB
If you want the mpeg file to be compliant to some specification
Like DVD, VCD or others, make sure you set the correct buffer size
Output #0, mpeg, to 'w.mpeg':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Stream #0:0(und): Video: mpeg1video, yuv420p, 800x480 [SAR 16:15 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 90k tbn, 29.97 tbc
Metadata:
handler_name : ISO Media file produced by Google Inc. Created on: 01/03/2019.
encoder : Lavc58.54.100 mpeg1video
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: mp2, 44100 Hz, stereo, s16, 384 kb/s (default)
Metadata:
handler_name : ISO Media file produced by Google Inc. Created on: 01/03/2019.
encoder : Lavc58.54.100 mp2
frame= 5465 fps= 29 q=31.0 Lsize= 19288kB time=00:03:02.37 bitrate= 866.4kbits/s speed=0.972x
video:10562kB audio:8549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.924291%
Useful Command
ffmpeg -i norway.mp4 -s 800*480 output.mp4 -q:v 1
/* A different encode for Video contrast to H.264 */
ffmpeg -i radio.mp4 maria.mpeg
#LOW Quality but the file is small
ffmpeg -i in.mp4 -vcodec libx264 -preset veryslow -threads 2 -s 800*480 -acodec copy out.mp4
#High Quality but the file is large
ffmpeg -i now.mp4 -preset ultrafast -s 800*480 Apple.mp4
#crop w:h:x:y
ffmpeg -i input.mp4 -vf crop=400:400:10:10 output.mp4 -y
information
gst-discoverer-1.0 sight.mp4
Analyzing file:///home/root/Video/sight.mp4
Done discovering file:///home/root/Video/sight.mp4
Topology:
container: Quicktime
audio: MPEG-4 AAC
video: H.264 (High Profile)
Properties:
Duration: 0:00:09.267000000
Seekable: yes
Live: no
Tags:
audio codec: MPEG-4 AAC audio
maximum bitrate: 69000
bitrate: 55392
encoder: Lavf58.29.100
container format: ISO MP4/M4A
video codec: H.264 / AVC
gst-inspect-1.0
gst-inspect-1.0 fbdevsink
Factory Details:
Rank none (0)
Long-name fbdev video sink
Klass Sink/Video
Description Linux framebuffer videosink
Author Sean D'Epagnier <[email protected]>
Plugin Details:
Name fbdevsink
Description Linux framebuffer video sink
Filename /usr/lib/gstreamer-1.0/libgstfbdevsink.so
Version 1.14.4
License LGPL
Source module gst-plugins-bad
Source release date 2018-10-02
Binary package GStreamer Bad Plug-ins source release
Origin URL Unknown package origin
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstBaseSink
+----GstVideoSink
+----GstFBDEVSink
Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
video/x-raw
format: { (string)RGB, (string)BGR, (string)BGRx, (string)xBGR, (string)RGB, (string)RGBx, (string)xRGB, (string)RGB15, (string)RGB16 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
Element has no clocking capabilities.
Element has no URI handling capabilities.
Pads:
SINK: 'sink'
Pad Template: 'sink'
Element Properties:
name : The name of the object
flags: readable, writable
String. Default: "fbdevsink0"
parent : The parent of the object
flags: readable, writable
Object of type "GstObject"
sync : Sync on the clock
flags: readable, writable
Boolean. Default: true
max-lateness : Maximum number of nanoseconds that a buffer can be late before it is dropped (-1 unlimited)
flags: readable, writable
Integer64. Range: -1 - 9223372036854775807 Default: 20000000
qos : Generate Quality-of-Service events upstream
flags: readable, writable
Boolean. Default: true
async : Go asynchronously to PAUSED
flags: readable, writable
Boolean. Default: true
ts-offset : Timestamp offset in nanoseconds
flags: readable, writable
Integer64. Range: -9223372036854775808 - 9223372036854775807 Default: 0
enable-last-sample : Enable the last-sample property
flags: readable, writable
Boolean. Default: true
last-sample : The last sample received in the sink
flags: readable
Boxed pointer of type "GstSample"
blocksize : Size in bytes to pull per buffer (0 = default)
flags: readable, writable
Unsigned Integer. Range: 0 - 4294967295 Default: 4096
render-delay : Additional render delay of the sink in nanoseconds
flags: readable, writable
Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
throttle-time : The time to keep between rendered buffers (0 = disabled)
flags: readable, writable
Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
max-bitrate : The maximum bits per second to render (0 = disabled)
flags: readable, writable
Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
show-preroll-frame : Whether to render video frames during preroll
flags: readable, writable
Boolean. Default: true
device : The framebuffer device eg: /dev/fb0
flags: readable, writable
String. Default: null
display the fps of mi-pi
cat /sys/kernel/debug/dri/0/state | grep fps -m1
iw
#scan SSID
iw dev wlan0 scan | grep SSID
#link status
iw dev wlan0 link
#list dev performance
iw dev list
#connect SSID without password
iw dev wlan0 connect mteaching
#connect SSID with password
iw dev wlan0 connect mteaching keys d:0:12345678
connect to wireless network
ifconfig wlan0 up
sleep 5
wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
iw dev wlan0 link
udhcpc -i wlan0
ping www.baidu.com -c 4
ntpdate ntp1.aliyun.com
initial wireless network
wpa_passphrase mteaching 12345678 >> /etc/wpa_supplicant.conf
#No Password
wpa_passphrase longsys >> /etc/wpa_supplicant.conf
wpa_supplicant.conf
root@stm32mp1:~# cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1
network={
key_mgmt=NONE
}
script
download
echo "- - - - Viedo Download - - - -"
items=(
"arduino.mp4" "done.mp4" "ferrari.mp4" "mac.mp4" "mpu.mp4"
"norway.mp4" "sight.mp4" "signal.mp4" "travel.mp4" "watch.mp4"
)
for item in ${items[*]}
do
wget "http://82.157.101.63/${item}"
echo "[done]"
done
without certificate
wget https://www.apple.com.cn/105/media/cn/iphone-12/2020/7f5b7de7-9f8c-41eb-bf3b-f294773108e6/anim/hero-purple/large_2x.mp4 --no-check-certificate
play
ehco "- - - Video Player by GStreamer - - -"
for item in `ls *.mp4`
do
echo "Now Play Video -->[${item}]"
gst-launch-1.0 playbin uri=file:///home/root/Video/${item}
echo -e "- - - End - - -\r\n"
done
scp
transfer file between hosts
scp output.mpeg [email protected]:/home/root/Video
pscp
#'r' means directory supported, pscp is provided by SSH
pscp -r D:\Web\monkey [email protected]:/var/www/html
weston
version V1.2.0
#start
systemctl start weston
#stop
systemctl stop weston
version 3.0.0
systemctl start [email protected]
systemctl stop [email protected]
Some Linux Cmd
fbtft
fb-test
fb-test -r
sleep 1
fb-test -g
sleep 1
fb-test -b
sleep 1
fb-test -w
monitor
cpu temperature
root@stm32mp1:/sys/devices/virtual/thermal/thermal_zone0# cat temp
62866
package
process
apt-get install nano
apt-get install redis
apt-get install nginx
apt-get install mosquitto mosquitto-clients
hardware supported by python
apt-get install python3-pip
apt-get install libgpiod-python
apt-get install python3-smbus
apt-get install python3-spidev
software supported by python
apt-get install python3-dbus
apt-get install python3-sqlite3
apt-get install python3-gi
install package with pip
pip3 install paho-mqtt -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
pip3 install requests -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
pip3 install --user meson
export PATH=/home/pi/.local/bin:$PATH
alias python="python3"
sudo mv /usr/bin/python3 python
update dtb
make dtbs
scp arch/arm/boot/dts/stm32mp157c-dk2.dtb [email protected]:/boot
apt
search
apt-cache searsh redis
update
install
apt-get install ntpdate
synchronization
ntpdate ntp1.aliyun.com
add timezone
apt-cache search zone
install timezone
apt-get install tzdata-asia
set timezone
timedatectl set-timezone 'Asia/Shanghai'
Glib
install
sudo apt-get install libglib2.0-dev
reference url:
https://www.cnblogs.com/alexyuyu/articles/2555216.html
https://blog.csdn.net/andylauren/category_6219334.html
C Build
pkg-config --cflags --libs glib-2.0
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -lglib-2.0
timestamp
millisecond
#include <stdio.h>
#include <sys/time.h>
int main() {
struct timeval start, end;
gettimeofday( &start, NULL );
sleep(3);
gettimeofday( &end, NULL );
int timeInterval = 1000000 * ( end.tv_sec - start.tv_sec ) + end.tv_usec - start.tv_usec;
printf("time: %d us\n", timeInterval);
return 0;
}
compression and decompression
#compression
zip:
zip -q -r GDBus-master.zip GDBus-master
tar:
tar -cvf file.tar file
tar.gz
tar -czf file.tar.gz file
#decompression
*.zip
unzip master.zip
*.tar
tar -xvf file.tar
*.tar.gz
tar -xzvf file.tar.gz
*.tar.bz2
tar xjvf file.tar.bz2
*.tar.Z
tar -xZvf file.tar.Z
*rar
unrar e file.rar
Shell
echo "We used the Linux shell script mainly for the installation."
if [ $EUID != 0 ];then
echo "You aren't the root."
fi
array=(ABCDEF)
echo $array
echo ${
#array[@]}
array=(A B C D E F)
echo $array
echo ${
#array[@]}
for i in ${array[*]}
do
echo $i
done
i=0
sum=0
while(( $i != 10 ))
do
# let "i++"
i=`expr $i + 1`
echo $i
done
i=0
sum=0
while [[ $i != 10 ]]
do
#let "i++"
i=`expr $i + 1`
echo $i
done
echo ******************************
modetest
root@stm32mp1:~# modetest -M stm
Encoders:
id crtc type possible crtcs possible clones
34 40 DSI 0x00000001 0x00000002
Connectors:
id encoder status name size (mm) modes encoders
35 34 connected DSI-1 52x86 2 34
modes:
index name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
#0 480x800 50.00 480 578 610 708 800 815 825 839 29700 flags: nhsync, nvsync; type: preferred, driver
#1 480x800 60.00 480 550 582 654 800 815 825 841 33000 flags: nhsync, nvsync; type: driver
props:
1 EDID:
flags: immutable blob
blobs:
value:
2 DPMS:
flags: enum
enums: On=0 Standby=1 Suspend=2 Off=3
value: 0
5 link-status:
flags: enum
enums: Good=0 Bad=1
value: 0
6 non-desktop:
flags: immutable range
values: 0 1
value: 0
4 TILE:
flags: immutable blob
blobs:
value:
20 CRTC_ID:
flags: object
value: 40
CRTCs:
id fb pos size
40 0 (0,0) (480x800)
#0 480x800 50.00 480 578 610 708 800 815 825 839 29700 flags: nhsync, nvsync; type: preferred, driver
props:
22 ACTIVE:
flags: range
values: 0 1
value: 1
23 MODE_ID:
flags: blob
blobs:
value:
04740000e00142026202c40200002003
2f03390347030000320000000a000000
48000000343830783830300000000000
00000000000000000000000000000000
00000000
19 OUT_FENCE_PTR:
flags: range
values: 0 18446744073709551615
value: 0
24 VRR_ENABLED:
flags: range
values: 0 1
value: 0
31 BACKGROUND_COLOR:
flags: range
values: 0 18446744073709551615
value: 18446462598732840960
28 GAMMA_LUT:
flags: blob
blobs:
value:
29 GAMMA_LUT_SIZE:
flags: immutable range
values: 0 4294967295
value: 256
Planes:
id crtc fb CRTC x,y x,y gamma size possible crtcs
36 0 0 0,0 0,0 0 0x00000001
formats: AR24 XR24 RG24 RG16 AR15 XR15 AR12 XR12 C8
props:
8 type:
flags: immutable enum
enums: Overlay=0 Primary=1 Cursor=2
value: 1
17 FB_ID:
flags: object
value: 0
18 IN_FENCE_FD:
flags: signed range
values: -1 2147483647
value: -1
20 CRTC_ID:
flags: object
value: 0
13 CRTC_X:
flags: signed range
values: -2147483648 2147483647
value: 0
14 CRTC_Y:
flags: signed range
values: -2147483648 2147483647
value: 0
15 CRTC_W:
flags: range
values: 0 2147483647
value: 480
16 CRTC_H:
flags: range
values: 0 2147483647
value: 800
9 SRC_X:
flags: range
values: 0 4294967295
value: 0
10 SRC_Y:
flags: range
values: 0 4294967295
value: 0
11 SRC_W:
flags: range
values: 0 4294967295
value: 31457280
12 SRC_H:
flags: range
values: 0 4294967295
value: 52428800
30 IN_FORMATS:
flags: immutable blob
blobs:
value:
01000000000000000900000018000000
01000000400000004152323458523234
52473234524731364152313558523135
41523132585231324338202000000000
ff010000000000000000000000000000
0000000000000000
in_formats blob decoded:
AR24: LINEAR
XR24: LINEAR
RG24: LINEAR
RG16: LINEAR
AR15: LINEAR
XR15: LINEAR
AR12: LINEAR
XR12: LINEAR
C8 : LINEAR
38 alpha:
flags: range
values: 0 65535
value: 65535
39 zpos:
flags: immutable range
values: 0 0
value: 0
41 0 0 0,0 0,0 0 0x00000001
formats: AR24 RG24 RG16 AR15 AR12 C8
props:
8 type:
flags: immutable enum
enums: Overlay=0 Primary=1 Cursor=2
value: 0
17 FB_ID:
flags: object
value: 0
18 IN_FENCE_FD:
flags: signed range
values: -1 2147483647
value: -1
20 CRTC_ID:
flags: object
value: 0
13 CRTC_X:
flags: signed range
values: -2147483648 2147483647
value: 0
14 CRTC_Y:
flags: signed range
values: -2147483648 2147483647
value: 0
15 CRTC_W:
flags: range
values: 0 2147483647
value: 0
16 CRTC_H:
flags: range
values: 0 2147483647
value: 0
9 SRC_X:
flags: range
values: 0 4294967295
value: 0
10 SRC_Y:
flags: range
values: 0 4294967295
value: 0
11 SRC_W:
flags: range
values: 0 4294967295
value: 0
12 SRC_H:
flags: range
values: 0 4294967295
value: 0
30 IN_FORMATS:
flags: immutable blob
blobs:
value:
01000000000000000600000018000000
01000000300000004152323452473234
52473136415231354152313243382020
3f000000000000000000000000000000
0000000000000000
in_formats blob decoded:
AR24: LINEAR
RG24: LINEAR
RG16: LINEAR
AR15: LINEAR
AR12: LINEAR
C8 : LINEAR
43 alpha:
flags: range
values: 0 65535
value: 65535
44 zpos:
flags: immutable range
values: 1 1
value: 1
make some test
#RGB Display
root@stm32mp1:~#modetest -s 35@40:480x800@RG24 -M stm
setting mode 480x800-50.00Hz@RG24 on connectors 35, crtc 40
find
#Find files in current directory by name.
find . | grep weston.ini
#Find special text in the files.
find main.c | xargs grep -rin sync
hexdump
hexdump -C main -s 5672 -n 16
convert
convert m.png -resize 64x gnu.png
convert ios.jpg -resize x480 1.jpg
convert 1.jpg -crop 480x800+0+28 iOS.jpg
identify iOS.jpg
Thread
show thread(s) in process
ps
ps -T -p PID
top
top -H -p PID
kill a process
ps afx | grep ...
Blue Z Stack
hcitool
Query Information
hcitool leinfo B8:8A:5E:78:7E:1E
Requesting information ...
Handle: 64 (0x0040)
LMP Version: 4.2 (0x8) LMP Subversion: 0x321
Manufacturer: Texas Instruments Inc. (13)
Features: 0x19 0x00 0x00 0x00 0x00 0x00 0x00 0x00
dump
#btmon may be more helpful
btmon
hcidump --raw -i hci0 -t -X
How to save logs and open with wireShark
Open the file directly.
whitelist
The relationship between Character ID and Blue Z
In Arduino Code
#define SERVICE_UUID "4FAFC201-1FB5-459E-8FCC-C5C9C331914B"
#define CHARACTERISTIC_UUID "BEB5483E-36E1-4688-B7F5-EA07361B26A8"
In Blue Z
root@stm32mp1:~# hcitool lescan | grep mon
4C:75:25:BB:86:EA mongoose OS
root@stm32mp1:~# bluetoothctl
Agent registered
[CHG] Controller 43:43:A1:12:1F:AC Pairable: yes
[bluetooth]# connect 4C:75:25:BB:86:EA
Attempting to connect to 4C:75:25:BB:86:EA
[CHG] Device 4C:75:25:BB:86:EA Connected: yes
[CHG] Device 4C:75:25:BB:86:EA Name: mongoose OS
[CHG] Device 4C:75:25:BB:86:EA Alias: mongoose OS
Connection successful
[CHG] Device 4C:75:25:BB:86:EA UUIDs: 00001800-0000-1000-8000-00805f9b34fb
[CHG] Device 4C:75:25:BB:86:EA UUIDs: 00001801-0000-1000-8000-00805f9b34fb
[NEW] Primary Service (Handle 0x17c4)
/org/bluez/hci0/dev_4C_75_25_BB_86_EA/service0001
00001801-0000-1000-8000-00805f9b34fb
Generic Attribute Profile
[NEW] Characteristic (Handle 0x179c)
/org/bluez/hci0/dev_4C_75_25_BB_86_EA/service0001/char0002
00002a05-0000-1000-8000-00805f9b34fb
Service Changed
[NEW] Descriptor (Handle 0xb5ac)
/org/bluez/hci0/dev_4C_75_25_BB_86_EA/service0001/char0002/desc0004
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Secondary Service (Handle 0x17c4)
/org/bluez/hci0/dev_4C_75_25_BB_86_EA/service0028
/* service */
4fafc201-1fb5-459e-8fcc-c5c9c331914b
Vendor specific
[NEW] Characteristic (Handle 0x179c)
/org/bluez/hci0/dev_4C_75_25_BB_86_EA/service0028/char0029
CHARACTERISTIC_UUID
/* characteristic */
beb5483e-36e1-4688-b7f5-ea07361b26a8
Vendor specific
[NEW] Descriptor (Handle 0xc2dc)
/org/bluez/hci0/dev_4C_75_25_BB_86_EA/service0028/char0029/desc002b
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[CHG] Device 4C:75:25:BB:86:EA UUIDs: 00001800-0000-1000-8000-00805f9b34fb
[CHG] Device 4C:75:25:BB:86:EA UUIDs: 00001801-0000-1000-8000-00805f9b34fb
[CHG] Device 4C:75:25:BB:86:EA UUIDs: 4fafc201-1fb5-459e-8fcc-c5c9c331914b
[CHG] Device 4C:75:25:BB:86:EA ServicesResolved: yes
[mongoose OS]#
CAN Bus
Link layer
ip addr
#what's dbitrate and fd?
ip link set can0 type can bitrate 500000
ip link set can0 up type can bitrate 1000000 dbitrate 2000000 fd on
ip -details link show can0
ip link set can0 up
ip -details link show can0
ifconfig
DTS
SPI
&spi5 {
cs-gpios = <&gpiof 6 0>;
status = "okay";
spidev@0{
compatible = "spidev";
reg = <0>;
spi-max-frequency = <100000000>;
};
};
mcp2515
&spi5 {
cs-gpios = <&gpiof 6 0>;
status = "okay";
mcp2515@0{
compatible = "microchip,mcp2515";
reg = <0>;
spi-max-frequency = <100000000>;
};
};
PWM
/sys/class/pwm
/*ACT*/
pwm1_pins_a: pwm1-0 {
pins {
pinmux = <STM32_PINMUX('E', 9, AF1)>, /* TIM1_CH1 */
<STM32_PINMUX('E', 11, AF1)>, /* TIM1_CH2 */
<STM32_PINMUX('E', 14, AF1)>; /* TIM1_CH4 */
bias-pull-down;
drive-push-pull;
slew-rate = <0>;
};
};
/*NO ACT*/
pwm1_pins_a: pwm1-0 {
pins {
pinmux = <STM32_PINMUX('E', 9, AF1)>, /* TIM1_CH1 */
<STM32_PINMUX('D', 15, AF1)>, /* TIM1_CH4 */
bias-pull-down;
drive-push-pull;
slew-rate = <0>;
};
};
Support for ST7701
panel_otm8009a: panel-otm8009a@0 {
compatible = "techstar,ts8550b";
reg = <0>;
reset-gpios = <&gpioe 4 GPIO_ACTIVE_LOW>;
VCC-supply = <&v3v3>;
IOVCC-supply = <&v3v3>;
status = "okay";
port {
panel_in: endpoint {
remote-endpoint = <&dsi_out>;
};
};
};