AN2799

File organization

3/14

1

File organization

The following table presents the firmware modules.

2

Hardware

The solution is based on the STM32F103xx in the LQFP64 package with 128 kB of Flash

and 20 kB of SRAM for demonstration purposes, but it can be easily ported on the smaller

STM32F101xx microcontroller family based on the same ARM Cortex™-M3 CPU as well.

The device used to measure the phase AC current is the STPM01 with a current

transformer.

Table 1.

Firmware modules

File

Description

PowerMeterHal.h

PowerMeterHalTypes.h

Definitions of power meter hardware abstraction layer types and function

prototypes.

PowerMeterObj.h

PowerMeterTypes.h

Definitions of power meter abstract objects and types.

PowerMeterHal.c

PowerMeterObj.c

Power meter hardware abstraction layer and abstract object

implementation

Meterlayer.h

Definitions of application interface types and function prototypes

Meter.c

MeterHal.c

Application interface and hardware abstraction layer implementation

ExampleApp.c

Library usage example