AN669

INTEGRATING SILICON LABS SiM3XXXX DEVICES INTO

THE KEIL µVISION® IDE

1. Introduction

This application note describes how to configure and use the Keil µVision® Integrated Development Environment

(IDE) with Silicon Laboratories Precision32™ 32-bit microcontrollers (SiM3xxxx).

2. Key Points

Key points described in this application note include:

Generating a blank project in Keil µVision

Configuring a µVision project for use with Silicon Laboratories SiM3xxxx devices

Using the µVision IDE to build, download , ru n, and debu g a pr ojec t

Using the System Viewer Windows an d De bu g (Print ) Viewer

3. Creating a Project

A project is necessary in order to build an example and download the firmware image to the MCU. To create a

project in µVision:

1. Under the Project menu, select New µVision Project. After naming your new project, select SiLabs

SiM3x Devices in the Select a CPU Data Base File dialo g and click OK.

2. Expand the Silicon Laboratories data base to open a list of supported MCUs, select the appropriate MCU,

and click OK.

Figure 1. Selecting a SiM3x Device

After creating your blank project, there will be an empty project in the Project Window . The next step is to configure

the project optio n s.

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4. Configuring Options for Target

Specific configurations are required in order to communicate with the MCU using µVision. Some of the options are

preconfigured after selecting a device under the Device tab, but some modifications are required. This section

describes the required settings in all of the configuration tabs within the Project

Options for Target dialog; tabs

that do not require any changes are explicitly noted.

4.1. Target

Check the Use MicroLIB option in the Code Generation section.

Note: Adding the correct scatter file in "Section G: Linker" will override the options in Read/Only Memory Areas and Read/

Write Memory Areas on this tab.

Figure 2. Target Tab

4.2. Output

No changes needed on this tab.

Figure 3. Output Tab