View source for Updating ZWIR4512 Firmware

To update the firmware of an ICradio ZWIR Module using an SAM9G45, the module can be programmed in system in most cases. 

=== Requirements ===

==== Hardware ====

The requirements to do so are the following:

* The ICradio UART is accessible on the ICnova
* The bootselect and reset pins of the ICradio are either connected directly to the ICnova or can be set manually

If the pins are accessible as GPIOs, the corresponding [[Accessing GPIO|GPIO-Numbers]] have to be known. These are referenced by their pin-names in the following text.

==== Software ====

The Software needed to upload a new firmwarefile can be found at [[media:Icradio_update_bin.tar.bz2]]. The contents of this archive, especially the file icradio_update have to be accessible from the ICnova.

=== Configuration of the Updater ===

To update the firmware a suitable configurationfile must be present. To start with, the file example.conf from the archive can be used. The most important parameters in this file are:

* '''device''' by default this uses ttyS1. If the ICradio is connected to another port or via USB, the correct tty has to be specified using this parameter
* '''resetpin''' is the GPIO-number of the resetpin. This parameter has to be deleted, if the pin on the ICradio is toggled manually.
* '''bspin''' is the GPIO-number of the bootselect pin. This parameter has to be deleted, if the pin on the ICradio is toggled manually.

=== Updating the Firmware ===

If the bs and resetpins are not connected via GPIOs, bring the board into bootloader-mode by following this sequence:

* activate the reset-pin
* activate the bootselect-pin
* deselect the reset-pin
* deselect the bootselect-pin

If the pins are connected using GPIOs, the sequence will be handled by the update-software.
The firmwarefile itself should be present as a hex-file.
Finally the firmware can be uploaded by using the following command:

  ./icradio_update -f example.com -F firmware.hex

[[Category:ICnova_SAM9G45]] [[Category:ICradio ZWIR Modules]] [[Category:HowTo]]