sdma_scatter_gather#
Overview#
The SDMA scatter gather example is a simple demonstration program that uses the SDK software. It excuates several shots transfer from source buffer to destination buffer using the SDK SDMA drivers. The purpose of this example is to show how to use the SDMA and to provide a scatter gather example for debugging and further development.
Supported Boards#
EVK-MIMX8MM
Hardware requirements
Micro USB cable
MIMX8MM6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
SDMA scatter_gather transfer example begin.
Destination Buffer:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SDMA scatter_gather transfer example finish.
Destination Buffer:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
EVK-MIMX8MN
Hardware requirements
Micro USB cable
MIMX8MN6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
SDMA scatter_gather transfer example begin.
Destination Buffer:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SDMA scatter_gather transfer example finish.
Destination Buffer:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
EVK-MIMX8MNDDR3L
Hardware requirements
Micro USB cable
MIMX8MN6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
SDMA scatter_gather transfer example begin.
Destination Buffer:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SDMA scatter_gather transfer example finish.
Destination Buffer:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
EVK-MIMX8MP
Hardware requirements
Micro USB cable
EVK-MIMX8M Plus board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
SDMA scatter_gather transfer example begin.
Destination Buffer:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SDMA scatter_gather transfer example finish.
Destination Buffer:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15