edma4_channel_link#
Overview#
The EDMA channel link example is a simple demonstration program that uses the SDK software. It excuates channel link transfer using the SDK EDMA drivers. The purpose of this example is to show how to use the EDMA and to provide a simple example for debugging and further development, it demostrates how to use the minor loop link and major loop link: Since each transfer request can be divided into MAJOR_LOOPS_COUNTS * MINOR_LOOPS_BYTES, such as you want to request EDMA transfer 8 bytes total, 4 bytes each request, then MAJOR_LOOPS_COUNTS = 2, MINOR_LOOPS_BYTES = 4. The minor loop channel linking occurs at the completion of the minor loop 4 byte transferred. The major loop channel linking is occurs at the major loop exhausted. The example demostrate the channel link transfer by the feature of edma4:
Supported Boards#
MIMXRT1180-EVK
Hardware requirements
Mini/micro USB cable
MIMXRT1180-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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
When the example runs successfully, you can see the similar information from the terminal as below.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
MCIMX93AUTO-EVK
Hardware requirements
USB Type-C cable
MCIMX93AUTO-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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 re-power up your board or 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.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
MCIMX93-EVK
Hardware requirements
USB Type-C cable
MCIMX93-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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 re-power up your board or 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.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
MCIMX93W-EVK
Hardware requirements
USB Type-C cable
MCIMX93W-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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 re-power up your board or 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.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
MCIMX93-QSB
Hardware requirements
USB Type-C cable
MCIMX93-QSB board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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 re-power up your board or 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.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
IMX943-EVK
Hardware requirements
Mini/micro USB cable
IMX943-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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 re-power up your board or 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.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
MIMXRT700-EVK
Hardware requirements
Micro USB cable
MIMXRT700-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the MCU-LINK 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
When the example runs successfully, you can see the similar information from the terminal as below.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
FRDM-MCXE31B
Hardware requirements
Micro USB cable
FRDM-MCXE31B Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) 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
When the example runs successfully, you can see the similar information from the terminal as below.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
FRDM-MCXE32B
Hardware requirements
Micro USB cable
FRDM-MCXE32B board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) 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
When the example runs successfully, you can see the similar information from the terminal as below.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4
FRDM-IMXRT1186
Hardware requirements
Type-C USB cable
FRDM-IMXRT1186 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA 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
When the example runs successfully, you can see the similar information from the terminal as below.
EDMA channel link example begin.
Destination Buffer 0:
0 0 0 0
Destination Buffer 1:
0 0 0 0
Destination Buffer 2:
0 0 0 0
EDMA channel link example finish.
Destination Buffer 0:
1 2 3 4
Destination Buffer 1:
1 2 3 4
Destination Buffer 2:
1 2 3 4