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Renesas Electronics America - Knowledgebase

How to calculate E10A-USB in the Writing flash memory mode?

Latest Updated:07/20/2007


Please explain how the sum value is calculated in the E10A-USB Writing flash memory mode.


The sum value displayed when a program in downloaded to the internal Flash memory in the E10A-USB Writing flash memory mode is calculated as follows:

The data in all MCU internal Flash memory areas (excluding the internal RAM and reserved areas) are added in bytes, and then displayed in in 4 bytes.

In the writing flash memory mode, all internal Flash memory areas are cleared when the E10A-USB is connected. Therefore, areas that are not assigned with data when the program is downloaded will be set to the Flash memory initial value 0xff.

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