Firmware updates

nRF7000 supports device firmware updates for bug fixes, security fixes, or additional functionality.

The updates are performed by patching the firmware. The firmware patches are downloaded from the host to the device for patching the ROM-based firmware. The patch download is fully automatic and handled by the Wi-FiĀ® driver software running on the host device.

Patches are downloaded to the nRF7000 device when powering up the device. Patches are downloaded into the patch memory, which is retained during sleep. The maximum patch size is 128 KB.

Patches are linked to a Wi-Fi driver version and delivered as a byte array included in the Wi-Fi driver.