SW-UPDATE.md

PIXELIX

Update The Software

• Purpose
• Recommendations
  • Non-Developer
  • Developer
• Update possibilities
  • Use Espressif Flash Download Tool (Windows only)
  • Use esptool
    • Debian Linux
    • Windows
    • Common after python and esptool are installed
  • Use VSCode and Platformio
• Update via USB
• Use the browser
• Flash Layout Information
• Issues, Ideas And Bugs
• License
• Contribution

Purpose

The software can be uploaded/updated to the development board in 4 different ways. Not all of them can be used in any case. Take a look to the recommendations which variant might be the best for you.

Recommendations

The recommeded way how to program the software to the board depends on the skill level, as well as the available toolchain. Hopefully it helps you to choose the right one.

Non-Developer

Use Case	Recommended To Use
Brand new development board, with only the preinstalled software on it.	Windows: Espressif Flash Download Tool Linux: esptool
A development board already used by you.	Windows: Espressif Flash Download Tool Linux: esptool
Pixelix is already running on the development board. Its webinterface is accessible.	Browser

Developer

Use Case	Recommended To Use
Development board, not running Pixelix and you don't like to install VSCode and PlatformIO.	Windows: Espressif Flash Download Tool Linux: esptool
Development board, not running Pixelix and you like to go the developers way.	VSCode and PlatformIO
You like to develop a plugin or change code for a pull request.	VSCode and PlatformIO
Pixelix is already running on the development board.	Browser

Update possibilities

Use Espressif Flash Download Tool (Windows only)

1. Download binaries (esp-rgb-led-matrix-v6.0.0.zip) from the latest release.
2. Unzip to a local folder.
3. Download the Espressif Flash Download Tool.
4. Unzip to a local folder.
5. Connect your development board with the PC.
6. Start the Espressif Flash Download Tool with the executable flash_download_tool_<version>.exe.
7. Choose ChipType, depended on the development board you have.
8. Choose WorkMode "Develop".
9. Choose LoadMode "UART".
10. Click on OK.
11. Select binaries in the order and with the addresses of the flash layout table.
12. Choose SPI SPPED: 40 MHz
13. Choose SPI MODE:
    • esp32: DIO
    • esp32-s3: QIO
14. Choose COM, e.g. COM4 which depends how the virtual COM port was mounted for the plugged in development board.
15. Start flashing by clicking on START in the DownloadPanel 1.
16. The state will change from IDLE to SYNC.
17. Keep BOOT button on the development board pressed, until the state changes to DOWNLOAD.
18. Now wait until state changes to FINISH.
19. Its complete, close the tool.

Use esptool

Debian Linux

1. Update system packages: sudo apt-get update
2. Install python toolchain: sudo apt-get install python3-pip
3. Verify successful installation: pip3 --version
4. Install esptool: sudo pip3 install esptool

Windows

1. Download and install latest Python version.
2. During the installation ensure that Python will be set on the path.
3. Install esptool: pip install esptool

Common after python and esptool are installed

1. Verify successful esptool installation: esptool --version
2. Erase flash: esptool -c <chip-type> -p <port> erase_flash
   • Note: Replace <chip-type> with the chip type of your development board, e.g. esp32. Replace <port> with the serial port the development board is connected too, e.g. COM4 on Windows or /dev/ttyUSB0 on Linux.
3. After the "Connecting" message appears, keep BOOT button on the development board pressed until procedure starts.
4. Write binaries to flash and choose the addresses from the flash layout table: esptool -p <port> write_flash --flash_mode <spi-mode> --flash_size <flash-size> <bootloader-address> bootloader.bin <partitions-address> partitions.bin <firmware-address> firmware.bin <littlefs-address> littlefs.bin
   • Replace <port> with the serial port the development board is connected too, e.g. COM4 on Windows or /dev/ttyUSB0 on Linux.
   • Use DIO for <spi-mode> in case of esp32, except esp32-s3 use QIO.

Use VSCode and Platformio

If your board is not available out of the box, have a look for the supported boards by platformio. Copy a board configuration block in the platformio.ini and overwrite the board configuration (board = ...) by using the right board id from supported boards by platformio.

The update consists of two parts:

• The software.
• The filesystem.

Update via USB

Steps:

1. Load workspace in VSCode.
2. Change to PlatformIO toolbar (click on the head of the ant in the left column).
3. Software:
   1. Project Tasks -> env:<choose-your-board> -> General -> Build
   2. Project Tasks -> env:<choose-your-board> -> General -> Upload
4. Filesystem:
   1. Project Tasks -> env:<choose-your-board> -> Platform -> Build Filesystem Image
   2. Project Tasks -> env:<choose-your-board> -> Platform -> Upload Filesystem Image

Example:

Use the browser

Preconditions:

• PIXELIX runs already on the target.

Steps:

1. Build the software via Project Tasks -> General -> Build All
2. Build the filesystem via Project Tasks -> env:<choose-your-board> -> Platform -> Build File System Image.
3. Now in the .pio/build/<choose-your-board> folder there are two important files:
   1. The software for the device: firmware.bin
   2. The prebuilt filesystem for the device: littlefs.bin (or spiffs.bin for Pixelix < 6.x.x)
4. Open browser add enter ip address of the device.
5. Jump to Update site.
6. Select firmware binary (firmware.bin) or filesystem binary (spiffs.bin/littlefs.bin) and click on upload button. Since Pixelix v6.x its possible to update the firmware and filesystem at once. Multi-select both binaries in this case.

Flash Layout Information

Binary	Address (hex)
bootloader.bin	0x1000
partitions.bin	0x8000
firmware.bin	0x10000
littlefs.bin	see next table

Development Board	Flash size in MByte	Address (hex) of littlefs.bin
esp32doit-devkit-v1	4	0x2b0000
esp32-nodemcu	4	0x2b0000
az-delivery-devkit-v4	4	0x2b0000
lilygo-ttgo-t-display	8	0x670000
lilygo-t-display-s3	16	0xc90000
lilygo-t-display-s3-amoled	16	0xc?????
adafruit_feathrer_esp32_v2	8	0x670000

Issues, Ideas And Bugs

If you have further ideas or you found some bugs, great! Create a issue or if you are able and willing to fix it by yourself, clone the repository and create a pull request.

License

The whole source code is published under the MIT license. Consider the different licenses of the used third party libraries too!

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, shall be licensed as above, without any additional terms or conditions.