Skip to content

UpdateHDKLinux.md

Latest commit

 

History

History
83 lines (59 loc) · 2.74 KB

UpdateHDKLinux.md

File metadata and controls

83 lines (59 loc) · 2.74 KB
Raw

Updating the HDK firmware from Linux

This will describe the process to update the HDK firmware from CLI in Linux. This guide expects a certain familiarity with Linux and comfort with CLI usage.

Note: This process has some risk associated with it. If instructions are not entered properly it may result in bricking the device.

Requirements

Checking the current firmware version

Use screen to connect to the HDK device

Note: Remember to run this with root privileges(sudo or root shell).

screen /dev/ttyACM0

Once connected you should have a blank screen with the terminal cursor flashing in the upper left corner.

Enter the following exactly and press enter to execute(the '#' symbol is NOT a prompt):

#?v

To exit the screen session:

  1. Press ctrl+a
  2. Then shift+k
  3. It will prompt for y/n to quit, select 'y'

Download and Verify the new firmware (HDK1.3 only)

The latest firmware for the HDK1.3:

Link: https://drive.google.com/file/d/0B1QNig02lQa8LXZOZlYtYnY4djg/view?usp=sharing
SHA1 checksum: 3d7f8ac7412fb9f8c11ae082c4c27e550dad8012

Note: Do not use a file if the checksum does not match.

Verify the checksum of the file (replace firmware.hex with the name of the file you downloaded):

sha1sum firmware.hex
3d7f8ac7412fb9f8c11ae082c4c27e550dad8012 firmware.hex

Updating Firmware (Currently only verified for HDK1.3)

Note: All commands in this section require root privileges.

I recommend you watch dmesg or use journalctl -f in a separate terminal to see activity of the device attaching and changing state.

Put the HDK MCU into bootloader mode (HDK1.3 only)

Use screen to connect to the HDK

screen /dev/ttyACM0

Enter the following exactly and press enter to execute:

#?B1948

Note: The screen session should exit, this is expected as the device is rebooting into bootloader mode.

Uploading the new firmware (HDK1.3 only)

With the HDK MCU in bootloader mode (After the usb activity in the logs stops) the new firmware can be uploaded.

Use the dfu-programmer utility to upload the new firmware (replace 'firmware.hex' with the name of the file that was downloaded earlier):

dfu-programmer atxmega256a3bu flash --force --suppress-bootloader-mem firmware.hex

Reboot the HDK MCU to normal operation using the new firmware:

dfu-programmer atxmega256a3bu launch

Note: The device should again disconnect and reconnect. The device is ready to use once the logs stop.