Omega Talk

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  Introducing the Omega2 Pro! Now LIVE on Crowd Supply!
  crowdsupply omega2pro • • Lazar Demin

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  FB_ILI9341 80fps up to 100fps | memcpy(); 387 fps minimal
  ili9341 fbtft • • unique1984

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  @brolly759 Sorry for the late reply, i saw the post now.

  Actually there are but that is not a finished code(even beta).

  My work partner and I parted ways, and the project was canceled so i don't code it further.

  In the code there are lots of comment lines with Turkish language, when i create a free time i can change the comment lines and push the "unfinished code" to github. If it'll work for someone i will be glad.

  Some of the functions.

  /* Color conversion */ typedef struct hex2rgb { unsigned int hexValue; unsigned short int r, g, b; } hex2rgb; hex2rgb parseRgb888( hex2rgb hexValue ); hex2rgb parseRgb565( hex2rgb hexValue ); hex2rgb color565( char *hexVal ); hex2rgb color888( char *hexVal ); --- /* Color conversion */ hex2rgb parseRgb565 ( hex2rgb hexParse ) { hex2rgb hexParsed888, parsed; hexParsed888 = parseRgb888( hexParse ); parsed.hexValue = ( ( hexParsed888.r >> 3 ) << 11 ) | ( ( hexParsed888.g >> 2 ) << 5 ) | ( hexParsed888.b >> 3 ); parsed.r = ( ( parsed.hexValue >> 11 ) & 0x1F ); parsed.g = ( ( parsed.hexValue >> 5 ) & 0x3F ); parsed.b = ( parsed.hexValue & 0x1F ); //printf( "Output\nHex 565: #%04X\n", parsed.hexValue ); return parsed; } --- hex2rgb parseRgb888( hex2rgb hexParse ) { hex2rgb parsed; parsed.r = ( ( hexParse.hexValue >> 16 ) & 0xff ); parsed.g = ( ( hexParse.hexValue >> 8 ) & 0xff ); parsed.b = ( ( hexParse.hexValue >> 0 ) & 0xff ); //printf( "Output\nHex 888: #%06X\n", hexParse.hexValue ); //printf( "RGB (%d, %d, %d)\n", parsed.r, parsed.g, parsed.b ); return parsed; } --- hex2rgb color565( char *hexVal ) { hex2rgb hex24, hexParsed565; sscanf( hexVal , "%06x", &hex24.hexValue ); //~ hexParsed888 = parseRgb888( hex24 ); hexParsed565 = parseRgb565( hex24 ); //~ printf ( "Hex24\t#%06X\nRGB888 (%d, %d, %d)\n\n", hex24.hexValue ,hexParsed888.r, hexParsed888.g, hexParsed888.b ); //~ printf ( "Hex16\t#%04X\nRGB565 (%d, %d, %d)\n", hexParsed565.hexValue, hexParsed565.r, hexParsed565.g, hexParsed565.b ); return hexParsed565; } --- hex2rgb color888( char *hexVal ) { hex2rgb hex24, hexParsed888; sscanf( hexVal , "%06x", &hex24.hexValue ); hexParsed888 = parseRgb888( hex24 ); //~ hexParsed565 = parseRgb565( hex24 ); //~ printf ( "Hex24\t#%06X\nRGB888 (%d, %d, %d)\n\n", hex24.hexValue ,hexParsed888.r, hexParsed888.g, hexParsed888.b ); //~ printf ( "Hex16\t#%04X\nRGB565 (%d, %d, %d)\n", hexParsed565.hexValue, hexParsed565.r, hexParsed565.g, hexParsed565.b ); return hexParsed888; } --- void drawEmbedBmp ( struct fb_info *fb_info, char *bmpFile, unsigned int bmpFile_len ) { memcpy( fb_info->ptr, &bmpFile[0], bmpFile_len ); }

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  warp-core kernel panic
  kernel panic warp core • • Gnichi Mohamed

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  Can you try updating the build system: https://github.com/OnionIoT/source#updating-the-build-system

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  Omega2+ SPI full-duplex communication
  spidev c coding spi master • • TomiCode

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  Hi @TomiCode

  Very nice board ;-)

  As a workaround, you could use software SPI instead of hardware SPI. Unfortunately you'd need to re-route the SPI connections to different pins, as the hardware SPI pins can't be switched to GPIO because SPI is needed for accessing the flash. For SW SPI just load the spi-gpio-custom module for example like:

  # bus<Y>=<devid>,<SCK>,<MOSI>,<MISO>,<mode>,<speedInHz>,<CS> insmod spi-gpio-custom bus0=1,1,2,3,0,100000,0

  After this, you have a 100kHz SPI bus at /dev/spidev1.0 using GPIO0..3 for CS/SCK/MOSI/MISO in that order. For the mode parameter, see spi.h. I'm using this in several Omega2 based projects successfully.

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  Problem with local wifi access to working nodejs server
  bug • • Don O'Brien

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  @György-Farkas thank you very much that looks on the surface like good help. I'll check into it later when of sounder and less frustrated mind.

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  USB Flashing Trouble... Can I unplug it yet?
  flash flashing usb flash drive usb-to-serial omega2+ • • Geoff Tripoli

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  @Geoff-Tripoli
  Doesn't seem to have completed successfully.
  When it's finished, it will print "Done" and reboot, similar to this:

  . . Done! ____ _ ____ / __ \___ (_)__ ___ / __ \__ _ ___ ___ ____ _ / /_/ / _ \/ / _ \/ _ \ / /_/ / ' \/ -_) _ `/ _ `/ \____/_//_/_/\___/_//_/ \____/_/_/_/\__/\_, /\_,_/ W H A T W I L L Y O U I N V E N T ? /___/"
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  The Omega2 Pro is now available on Crowd Supply!
  omwga2+ omega2 omega2 pro • • CAP 33

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  Glad to see everyone is as excited about the Omega2 Pro as we are! :D

  A few clarifying points:

  The Omega2 Pro is an addition to the Onion family. We will not be discontinuing Omega2 and Omega2+ for the foreseeable future. The firmware is an Onion-flavored OpenWRT 18.06. We will still continue to create firmware for the Omega2 family, and the OpenWRT 18.06 version will make its way to the Omega2 and Omega2+ in the short term.
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  3g Cellular Expansion
  cellular expans • • George Adams

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  Troubles with Getting Started
  behaviour getting started • • Alex Kouznetsov

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  It is random. After power-up probability to get internet connection is about 50%.

  PuTTY to Omega AP starts almost immediately in case when Omega has internet connection. But when Omega does not have internet, it takes PuTTY about 15 sec to start SSH link.

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  enable uart2 is posiible on Omega2+??
  uart2 serial • • pablo campos

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  @pablo-campos said in enable uart2 is posiible on Omega2+??:

  I was using "omega2-ctrl gpiomux set uart2 uart"
  ...
  (omega2-ctrl gpiomux get)
  Group uart2 - [uart] gpio pwm23
  ...
  In fact the config of Group uart2 seems to be irrelevant.

  Here you are some details from the Mediatek MT7688 Datasheet:

  3.3 Pin Sharing Schemes 3.3.1 GPIO pin share scheme --------------+-------------+----------- I/O Pad Group | Normal Mode | GPIO Mode --------------+-------------+----------- SPIS | MDI_RP_P1 | GPIO#16 | MDI_RN_P1 | GPIO#17 --------------+-------------+----------- UART2 / eMMC | MDI_TP_P2 | GPIO#20 | MDI_TN_P2 | GPIO#21``` 3.3.21 SPIS pin share scheme ----------+-----------+-----------+---------+---------------------+--------------------------- Controlled| b0000 | b1111 | EPHY_APGIO_AIO_EN bit 4:1 by +-----------+-----------+---------+---------+-----------+--------------------------- | | b00 | b01 | b10 | b11 | SPIS_MODE bit 3:2 ----------+-----------+-----------+---------+---------+-----------+--------------------------- Pin Name | ----------+-----------+-----------+---------+---------+-----------+ MDI_RP_P1 | MDI_RP_P1 | SPIS_MISO | GPIO#16 | | UART_TXD2 | MDI_RN_P1 | MDI_RN_P1 | SPIS_MOSI | GPIO#17 | | UART_RXD2 | [SPIS_MODE] PWM CH0/1 and UART2 3.3.18 UART2 pin share scheme ----------+-----------+-----------+---------+-------------------+--------------------------- Controlled| b0000 | b1111 | EPHY_APGIO_AIO_EN bit 4:1 by +-----------+-----------+---------+---------+---------+--------------------------- | | b00 | b01 | b10 | b11 | UART2_MODE bit 27:26 ----------+-----------+-----------+---------+---------+---------+--------------------------- Pin Name | ----------+-----------+-----------+---------+---------+---------+ MDI_TP_P2 | MDI_TP_P2 | UART_TXD2 | GPIO#20 | PWM_CH2 | eMMC_D5 | MDI_TN_P2 | MDI_TN_P2 | UART_RXD2 | GPIO#21 | PWM_CH3 | eMMC_D4 | [UART2_MODE] UART-Lite #2

  omega2-ctrl gpiomux set uart2 uart is really irrevelant on Omega2(+) but both configs should be OK on Omega2(+)S (not the same time of course).
  I don't have it so I can't try the other config.

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  Custom kernel .config options - best practice?
  maintenance kernel custom config • • cas

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  How to print to logread?
  logging logread • • Alexandr Didenko

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  @Alexandr-Didenko

  There is an option to the "call" procedure when logging from Python:

  import syslog # Log messages to "LOCAL0" facility syslog.openlog(facility=syslog.LOG_LOCAL0) # Write something to the logfile syslog.syslog(syslog.LOG_INFO, "This is a logged message") syslog.closelog()

  You may then filter these from the shell:

  root@Omega:~# logread -l 800 | grep "local0" Thu Dec 13 09:02:24 2018 local0.info log.py: This is a logged message
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  Need Deteiled Datasheets to make a Gameingconsole with 2x Omega 2+
  gameconsole • • Andreas Thölking

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  Nice project idea. But why abandon the Linux OS and all the peripheral drivers and start everything writing from scratch? For the sake of a pure speed advantage or wanting to learn MIPS assembler? I feel like doing a UBoot bootloader + using baremetal C/C++ combination would have very similiar performance and be way more feasable to program.

  Still as soon as you want something like USB for Audio you probably don't want to re-implement the USB stack and USB peripheral driver from scratch. Or multitasking. (maybe use FreeRTOS on an Omega? ;))

  How is data shared between the Omegas? You say you have a 'combined RAM' but the memory / data bus of the Omega isn't exposed? How are they going to have shared memory?

  As for the video output, I think the fastest way to output the framebuffer would actually be USB because of its highest available bitrate. That's why I started using USB display adapters (here), they have an ok performance for low resolutions (90FPS @ 160 × 144 @ 16bpp) but need substantial optimizations for higher resolutions. I did rendering to SPI displays here.

  Or:

  use the even higher-speed Ethernet peripheral and an FPGA to render to a SPI display an HDMI encoder chip write framebuffer into shared RAM or a dedicated RAM which a FPGA renders out

  The only problem I see with graphics / 3D performance is the missing GPU. Everything has to be done in software. Maybe you can at least accellerate a few 2D operations with DMA acellerated copying though. I was using software-rendered OpenGL here (MESA 3D).

  The whole thing sounds a like a modern Nintendo64 (64-bit MIPS CPU @ 93.75MHz for game logic, 64-bit Reality Coprocessor @ 62.5MHz as GPU, audio processor, I/O processor, loadable with custom Microcode for programming the rendering stages), just that we have two 580MHz 32-bit MIPS cores now (with a 64-bit DSP).

  links with it are very welcome

  Only datasheet of the MT7688 I know of is at https://labs.mediatek.com/en/chipset/MT7688 and https://docs.labs.mediatek.com/resource/linkit-smart-7688/en/documentation, I'd gather the rest of peripheral drivers from the linux source code and patches (https://github.com/OnionIoT/source) or other bare-metal implementation (e.g. GPIO)

  Anyways if you want to work together I'd be a happy about a mail.

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  Unable to connect to Wifi after update and multiple reads
  omega2+ wifi • • Nick B

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  @Nick-B

  What are the next steps?

  The missing 'inet addr' in the latest ifconfig output would indicate that the device has not successfully received an address via dhcp from your AP, so it isn't successfully connected.

  I can replicate this by using an incorrect password when trying to connect to my AP. ie. iwconfig shows a successful looking apcli0 entry, while no inet addr on the same interface reflects in ifconfig.

  Perhaps try removing the wifi network and re-adding it?

  Or some additional log info may help diagnose further?

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  Python executes manually, fails on Cron Scheduler
  cron python • • larry biscuits

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  Well....I'm gonna need a beer when I get home.

  I was using a JSON file to store data from the script. I don't know why it took me so long to do this, but I included the logging for the script in cron and an error was generated indicating that it could not find my JSON. It appears when running the Python script from the shell, it must use the working directory. I included the full path in my script and it works now.

  Though, I have no idea what changed from yesterday to today...

  Tip of the Day: Use the logs to help diagnose an issue. They are terribly useful.

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  password on console (serial) access
  ssh serial console password • • Daniel Bachmann

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  @Daniel-Bachmann Yes, it is possible - for example with these commands:
  uci set system.@system[0].ttylogin='1'
  uci commit system
  reboot
  user: root, password: onioneer (default login credentials)

  Unfortunately it's fairly easy to bypass this solution due to the physical access to the device.

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  Omega2/2+ for sale
  omega 2 omega2+ • • Francesco Pessolano

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  Still available? I'm interested.

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  Using Azure IoT Hub with Python
  azure iot pytho • • Erik Hougaard

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  My recommendation is using NodeJS. I use NodeJS with Azure IoT Device and I dont run into any storage size issues. One little trick I found, install all your modules in /tmp, then move the node_modules folder to / . The folder will be highly compressed once its in flash memory.

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  Onion omega has no name
  uboot mac • • Gnichi Mohamed

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  @Lazar-Demin Thank you lazar, I will add it.

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  Cross compiling in Docker
  docker compile • • Erik Hougaard

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  @Erik-Hougaard
  I'm no docker expert, but I've been learning a bit about it over the last few days. When you exit a container it automatically maintains its last state.

  I would suggest that you review the docker docs on how to re-use a container. i.e. look into docker start or docker attach if you detached instead of exiting.