MCAN Loopback DMA LLD

Table of Contents

• Introduction
• Supported Combinations
• Using SDK with SysConfig
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example demonstrates the CAN message transmission and reception in digital loop back mode with the following configuration.

• CAN FD Message Format.
• Message ID Type is extended, Msg Id 0x29E.
• Configures DMA channels for transmission and receiption.
• Arbitration Bit Rate 1Mbps.
• Data Bit Rate 5Mbps.

Message is transmitted and received back internally using internal loopback mode. When the received message id and the data matches with the transmitted one, then the example is completed.

Supported Combinations

Parameter	Value
CPU + OS	m4fss0-0 nortos
Toolchain	ti-arm-clang
Boards	xWRL6432-evm
Example folder	examples/drivers/mcan/mcan_loopback_dma_lld

Using SDK with SysConfig

A GUI tool SysConfig is used to configure different modules and peripherals of the example. Using this tool, users can select and customize different modules and peripherals. The SysConfig tool will generate the code for initializing and configuring these modules. This configuration is saved to a file called example.syscfg for every example. To know more about how to use SDK with SysConfig, Visit this page

Using SDK with SysConfig

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

MCAN LLD

Sample Output

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

[MCAN] Loopback DMA mode, application started ...
[MCAN] Internal loopback testing for 10 iterations Passed
All tests have passed!!