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77 lines
3.1 KiB
Text
77 lines
3.1 KiB
Text
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Pebble EV2-4 Firmware Release Notes
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Sun Oct 21 03:00:00 UTC 2012
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This archive contains the EV2-4 software for the Pebble E-Paper Watch.
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* What's new
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- The serial port baud rate has changed from 115200bps to 230400bps.
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If you experience any corrupted output or serial console
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instability, please double-check that your serial connection is
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configured to use the new baud rate.
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- Many manufacturing test commands are now available from the
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serial port prompt. You can access the prompt by sending '^C' to
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Pebble's serial port.
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- Support for loading arbitrary data to Pebble's SPI flash has been
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added in this release. For more details on SPI flash loading,
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please read the documentation in docs/spi_flash_imaging.txt
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* Archive Contents
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- README.txt: The document you are currently reading
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- pebble_boot_{tag}.hex: The EV2-4 bootloader to be loaded over JTAG
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- pebble_fw_{tag}.hex: The EV2-4 firmware to be loaded over JTAG
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- pebble_recovery_{tag}.bin: The EV2-4 'recovery' firmware, to be
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loaded via Pebble's serial UART
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- system_resources_{tag}.pbpack: A binary blob to be loaded over
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Pebble's serial UART
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- scripts/serial_flash_imaging.py: A Python script to load data into
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Pebble's SPI flash over its serial port; this script depends on
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two other scripts (stm32_crc.py, insert_firmware_descr.py) also
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included in the directory. For more information, please refer to
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the 'Flash imaging tools' section.
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- docs/spi_flash_imaging.txt: A document describing the protocol
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used to load load data onto Pebble's SPI flash via
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the Serial UART
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* Firmware
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Upon successfully loading the bootloader and firmware onto a EV2-4
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device, a "Pebble" splash screen should appear on the display when
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the device is started.
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Once the firmware has loaded, a new screen will appear with a small
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picture of a watch and the text "Please Connect to Phone". The watch
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will respond to button inputs by illuminating the display's
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backlight while screen is being displayed.
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Once the "Please Connect to Phone" screen has appeared, the watch
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will accept communication over its serial port and you may access
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the manufacturing test commands and load data into SPI flash.
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* Flash imaging tools
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We have provided a Python script that loads binary data into SPI
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flash using the documented 'SPI Flash Imaging' feature added in this
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release. The script is available in 'serial_flash_imaging.py'. We
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have tested the script on Mac OS X 10.7 and Windows XP SP3.
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** Requirements:
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- The Windows FTDI driver
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- Python 2.7.3
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- Python Setuptools
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- PySerial (installed via setuptools' easy_install program)
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** Usage:
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The tool requires different arguments depending on the type of data
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being loaded.
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- To load recovery firmware, you'll want to use the following command:
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serial_flash_imaging.py -v <FTDI COM port> firmware <path to recovery firmware>
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- To load system resources, you'll want to use the following
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command:
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serial_flash_imaging.py -v <FTDI COM port> resources <path to resources> 0
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* Questions?
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Please contact ajw@getpebble.com or zulak@getpebble.com with any
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questions.
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