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 |
Example folder | examples/drivers/mcspi/mcspi_performance_32bit |
Steps to Run the Example
- 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.
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!!