MCSPI Performance 32 Bit

Table of Contents

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

Introduction

This Master application demonstrates the data transfer in master mode with performance measurment.

• McSPI is configured in Tx Only mode with FIFO enabled for Tx.
• Word Length tested is 32 bits.
• SPI CLK Frequency used is 12 MHZ.
• Number of Words is 5.
• Data is transmitted on D0 pin.
• Data transmission is in polled mode.

To modify the example to use main domain SPI, refer Accessing main and wakeup domain peripherals from MCU domain

Supported Combinations

Parameter	Value
CPU + OS	m4fss0-0 freertos
	m4fss0-0 nortos
	r5fss0-0 freertos
Toolchain	ti-arm-clang
Board	am62x-sk, am62x-sk-lp, am62x-sip-sk
Example folder	examples/drivers/mcspi/mcspi_performance_32bit

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

Attention

As the wake-up R5 is the device manager, it needs to be started by the SBL. So it can not be loaded through CCS. It should be flashed and booted through SBL.

• Refer Flash an example application for flashing the application.

See Also

MCSPI

Sample Output

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

m4fss0-0_freertos app log:

[BLAZAR_Cortex_M4F_0] [MCSPI] Performance Example Started...
 
----------------------------------------------------------
McSPI Clock 12000000 Hz
----------------------------------------------------------
Data Width      Data Length     Transfer Time (micro sec)
32              5               17.80
----------------------------------------------------------
 
All tests have passed!!

m4fss0-0_nortos app log:

[BLAZAR_Cortex_M4F_0] [MCSPI] Performance Example Started...
 
----------------------------------------------------------
McSPI Clock 12000000 Hz
----------------------------------------------------------
Data Width      Data Length     Transfer Time (micro sec)
32              5               17.80
----------------------------------------------------------
 
All tests have passed!!