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3 software architecture, Software architecture, Figure 2-1: software structure – Maxim Integrated 71M6534 Energy Meter IC Family Software User Manual

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71M653X Software User’s Guide

In order to generate and test software, the Keil compiler and the Signum in-circuit emulator (ICE) must be installed per
the instructions in section 4. The include files and header files must also be present on the development PC. Typically,
a design session consists of the following steps:

Editing C source code using µVision2

Compiling the source code using the Keil compiler

Modifying the source code and recompiling until all compiler error messages are resolved

Using the assembler and linker to generate executable code

Downloading the executable code to the ICE

Executing the code and watching its effects on the target

2.3 SOFTWARE ARCHITECTURE

The 71M653X software architecture is partitioned into three separate layers:

1. The lowest level is the device or hardware layer, i.e. the layer that directly communicates with the discrete

functional blocks of the chip and the peripheral components (“hardware”), such as serial interfaces, AFE, LCD
etc.

2. The second layer consists of buffers needed for some functions.

3. The third layer is the application layer. This layer is partially implemented by the Demo Code for evaluation

purposes, but extensions and enhancements can be added by the application software developer to design
suitable electronic power meter applications.

Figure 2-1: shows the partitions of each software component. As illustrated, there are many different designs an
application can develop depending on its usage. Section 5 describes in more detail the functions within each
component.

Application

Layer

Hardware

Hardware

Layer

Buffer

Layer

Meter

Totals (Meter Data)

CLI

SerCLI

FLAG

Ser0

Ser1

LCD

LCD

AFE

CE RAM

UART0

UART1

CE

Display

Sensors

Terminal/

PC

AMR

Figure 2-1: Software Structure

v1.1v1.1

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