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71M651x energy meter IC: Boot loader

Posted: 27 May 2011 ?? ?Print Version ?Bookmark and Share

Keywords:boot loader? emulators?

Some applications benefit from the ability to download code into the IC without requiring external tools such as emulators or download boards. A software application that allows such field software updates is typically called a boot loader.

Teridian Semiconductor Corporation has developed a boot loader to support field upgrades of the energy meter ICs with operational code. When programmed into ICs of the energy meter IC family (71M651X, 71M652X), it allows easy field upgrade of customer applications (operational code) via the UART. The boot loader only takes up to the lower 2K bytes of flash memory.

The boot loader described in this application note can be programmed into the ICs even with a low-cost tool, such as the TFP-2 Flash Download Module or a Signum ICE. Once the boot loader is programmed into Flash, application code downloads require only a terminal program, such as HyperTerminal.

This application note describes how a boot loader can be implemented, how it is deployed and how compatible firmware applications (operational code to be downloaded) can be generated.

View the PDF document for more information.

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