Figure 2: Simple Smart Sensor Graphical Description

2.2 Analysis / Code generation

After the schematics capture, an analysis of the graphical description must be launched with

the analyse menu. This process first checks the integrity of the description, verifies I/O

assignments and connectivity providing on-line information in the case of an error, guiding the

user in the development work.

If this first analysis step is successful, all the files related to the ST62 target are automatically

generated: The source file in macro-assembler language, the symbol table, the binary

executable code. The code generation uses a library of predefined macro-instructions

associated to the graphical symbols; thus the time needed from the graphical description to the

binary executable code is considerably reduced.

Finally a report file is provided with the Input/Output assignments and the used ROM and RAM.

This can help to choose the most suitable MCU for the application. In the present case the

report shows 27 RAM bytes and 434 ROM bytes are used, informing the developer about the

memory requirement for the MCU and the memory space available for further developments.

5/14