AN3209 datasheet(25/42 Pages) STMICROELECTRONICS

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AN3209

Developing, compiling and debugging your datalogger firmware

Doc ID 17419 Rev 2

25/42

Cosmic compiler is available with the related documentation at

http://www.cosmicsoftware.com/download_stm8_16k.php.

Note:

You have to request a free license to use the compiler.

Refer to http://www.cosmic-software.com and http://www.raisonance.com for more

information on complier download, installation and configuration.

4.3

Description of the datalogger firmware

The M24LR64-R_Datalogger_application_firmware implemented in the STM8L101K3 is low

power oriented. It manages two power consumption modes:

●

Active consumption mode where the operations are executed by the application.

●

Low consumption mode: when no operation is ongoing, the application switches to low

consumption mode for a predefined delay.

The following sections describe the main and the acquisition routines, where the red

rectangles represent functions. Each function is described in details in a dedicated section.

4.3.1

Main routine

Figure 19 describes the flowchart of main.c file algorithm. main.c is located at C:\Program

Files\M24LR64-R_Datalogger_Application\sources\M24LR64-

R_Datalogger_application_firmware or by clicking Start > M24LR64-

R_Datalogger_Application > M24LR64-R_Datalogger_application_firmware.

The datalogger firmware is based on an infinite loop. The first operation checks the status

byte stored in the M24LR64-R dual mode EEPROM. This byte indicates the state of the

datalogger (STARTED or STOPPED).

AN3209 データシート(PDF) 25 Page - STMicroelectronics