sai_sdma_transfer#
Overview#
The sai_sdma_transfer example shows how to use sai driver with SDMA:
In this example, one sai instance playbacks the audio data stored in flash/SRAM/DDR using SDMA channel.
Supported Boards#
EVK-MIMX8MM
Hardware requirements
Micro USB cable
MIMX8MM6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Headphone
Board settings
No special settings are required.
Note! This case does not support flash targets because of SDMA2 burst DMA not supporting for accessing flexspi.
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW101 to power on the board
Connect a USB cable between the host PC and the J901 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
Note: This demo outputs 215HZ sine wave audio signal. When the demo runs successfully, you can hear the tone and the log would be seen on the terminal like:
SAI SDMA example started!
SAI SDMA example finished!
EVK-MIMX8MN
Hardware requirements
Micro USB cable
MIMX8MN6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Headphone
Board settings
No special settings are required.
Note! This case does not support flash targets because of SDMA2 burst DMA not supporting for accessing flexspi.
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW101 to power on the board
Connect a USB cable between the host PC and the J901 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
Note: This demo outputs 215HZ sine wave audio signal. When the demo runs successfully, you can hear the tone and the log would be seen on the terminal like:
SAI SDMA example started!
SAI SDMA example finished!
EVK-MIMX8MNDDR3L
Hardware requirements
Micro USB cable
MIMX8MN6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Headphone
Board settings
No special settings are required.
Note! This case does not support flash targets because of SDMA2 burst DMA not supporting for accessing flexspi.
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW101 to power on the board
Connect a USB cable between the host PC and the J901 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
Note: This demo outputs 215HZ sine wave audio signal. When the demo runs successfully, you can hear the tone and the log would be seen on the terminal like:
SAI SDMA example started!
SAI SDMA example finished!
EVK-MIMX8MP
Hardware requirements
Micro USB cable
EVK-MIMX8M Plus board
J-Link Debug Probe
12V power supply
Personal Computer
Headphone
Board settings
No special settings are required.
NOTE
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW3 to power on the board
Connect a USB cable between the host PC and the J23 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
note:This demo uses codec master mode(internal pll mode) and outputs 215HZ sine wave audio signal..
When the demo runs successfully, you can hear the tone and the log would be seen on the terminal like:
SAI SDMA example started!
SAI SDMA example finished!