CBUFF Software Trigger

Table of Contents

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

Introduction

This example performs CBUFF software trigger.

• The user memory is initialized with incremented pattern. Cache write back is done to ensure that initialized data from cache is written to memory.
• Configures EDMA channel PaRAM set with source address as user buffer and destination as CBUFF FIFO.
• DCA1000 has to be connected to EVM to capture the data sent over LVDS interface by the test.
• After the test is completed, a binary file would be captured by DCA1000 EVM which can be verified manually. If the CBUFF module triggers the frame done interrupt test is successful.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0-0 nortos
	c66ss0 nortos
Toolchain	ti-arm-clang
Boards	am273x-evm
Example folder	examples/drivers/cbuff/cbuff_sw_trigger

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

Sample Output

Shown below is a sample output when the application is run,

[CBUFF] SW Trigger Test Started...
waiting for frameDone interrupt : 0
Received frameDone interrupt : 1
Data is transmitted over LVDS successfully.
[CBUFF] SW Trigger Test Completed!!
All tests have passed!!