OSPI PSRAM IO

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example demonstrates basic read write to the OSPI PSRAM configured in polled mode of operation. APIs from RAM driver are used to read and write to the PSRAM. The underlying OSPI reads and writes are taken care by the PSRAM APIs.

The example writes known data to a particular offset in the PSRAM and then reads it back. The read back data is then compared with the written known data. This is done twice at different offsets.

When both the comparisons match, test result is passed otherwise failed.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0-0 nortos
Toolchain	ti-arm-clang
Boards	am261x-lp
Example folder	examples/drivers/ospi/ospi_psram_io

Steps to Run the Example

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run

See Also

OSPI

Sample Output

OSPI Psram W/R test
Write Speed: 100.824615 Mbps
Read Speed: 409.600006 Mbps
All Tests Passed !!!!