OVER THE AIR MICROCONTROLLER FLASH MEMORY UPDATES

摘要

Techniques for over the air (OTA) microcontroller flash memory updates us ing a wireless network are disclosed herein. A control node first transmits the microcontroller flash memory update to all devices that can receive the message. Each packet of the message is relayed through multiple communicatio n levels until all devices receive the packet. This starts with communicatio ns from the control node to each device node that has a direct communication path to the control node, which are referred to herein as 'first level' dev ice nodes. The first level device nodes then relay each communication to eac h other device node that has a direct communication path to the first level device nodes, which are referred to herein as 'second level' device nodes. T his process is repeated at each level of the wireless network until each of the plurality of device nodes has received the microcontroller flash memory update.