Introduction

The C28x microcontrollers can connect to external nonvolatile memory through a variety of interfaces including parallel, serial peripheral interface (SPI), and inter-integrated circuit (I2C). One of the requirements for such a system is often easy programming of the external memory. This page lists solutions for this requirement.

Using SDFlash as an External Flash Programmer

This application report discusses how to write drivers for your external nonvolatile memory to allow for in-place programming using SDFlash, an application provided by Spectrum Digital, Inc. As a reference, it also presents a complete external memory design including schematic, layout, external memory drivers, and SDFlash programming algorithms.

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