Motorola 009 Instrukcja Użytkownika Pobierz pdf (Strona 11)

Introduction

MOTOROLA

SHI Port Usage

1-3

1.1 INTRODUCTION

This application report discusses the procedure for booting the symphony series of

Digital Signal Processors (DSPs) through the Serial Host Interface (SHI) port in Serial

Peripheral Interface (SPI) mode. The DSP56004/007/009 Evaluation Module was used

as the target platform to exemplify the procedure, but the procedure is applicable to all

Motorola DSPs with SHI ports.

1.2 SCOPE

The simple DSP application discussed in this application report is booted and then

communicated with using the MC68HC711E9 Microcontroller Unit (MCU) on the

Evaluation Module. The DSP application is the primary focus of this application report,

but at times discussion of the MCU functionality is required for clarity. After boot, the

DSP application runs as a slave to the MCU and responds to button selections on the

microcontroller interface by toggling a General Purpose Input/Output (GPIO) pin.

1.3 EVALUATION MODULE JUMPER CONNECTIONS

If the user is interested in executing the microcontroller software, the

DSP56004/007/009 Evaluation Module must be configured in the fashion shown in

Figure 1-1

. When the application is running, an oscilloscope may be used to monitor the

GPIO pins to see the DSP application's response to button choices selected by the user.

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Motorola 009 Instrukcja Użytkownika Strona 11