AN2614

Automatic serial number generation in the MCU

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Figure 2.

Serial number settings

Each time a new chip is programmed, the current ‘base value’ is programmed at the ‘start

address’ location, over ‘length’ bytes, and then the ‘step’ is added to the ‘base value’,

forming the new ‘base value’ for the next programming cycle.

A unique serial number is therefore assigned to each newly programmed MCU.

Note:

The current serial number value is saved each time a project is closed. It is loaded again,

the next time the project (file) is opened.

3.2.4

Option byte configuration

The option byte configuration window selects the .S19 file corresponding to the MCU option

byte definition. This file is created in the ‘option byte’ tag of the main window by selecting the

desired option byte configuration for ST7 microcontrollers with Flash memory and read-out

protection. The file is then saved under a distinct name (different from the main project .S19

file).

This .S19 file is automatically loaded each time the project is opened.

3.2.5

Program memory configuration

The program memory configuration window selects the .S19 file corresponding to the MCU

software binary file, as created by the C-complier or assembly toolchain. This file does not

contain any information regarding the option byte (refer to Section 3.2.4).

This .S19 file is automatically loaded each time the project is opened.