dma_hardware_trigger#
Overview#
The DMA hardware trigger example is a simple demonstration program that uses the SDK software.It executes one shot transfer from source buffer to destination buffer using the SDK DMA drivers by hardware trigger.The purpose of this example is to show how to use the DMA and to provide a simple example fordebugging and further development.
Supported Boards#
EVK-MIMXRT595
Hardware requirements
Micro USB cable
EVK-MIMXRT595 board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J40) on the 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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
EVK-MIMXRT685
Hardware requirements
Micro USB cable
EVK-MIMXRT685 board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the 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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
FRDM-MCXW23
Hardware requirements
Type-C USB cable
FRDM-MCXW23 Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the FRDM board J10.
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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW2 to trigger one shot DMA transfer.
SW2 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
LPCXpresso51U68
Hardware requirements
Micro USB cable
LPCXpresso51U68 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J6) on the 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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
LPCXpresso55S06
Hardware requirements
Mini/micro USB cable
LPCXpresso55S06 board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
LPCXpresso55S16
Hardware requirements
Mini/micro USB cable
LPCXpresso55S16 board
Personal Computer
Board settings
The jumper setting: Default jumpers configuration does not work, you will need to add JP20 and JP21 (JP22 optional for ADC use)
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
LPCXpresso55S28
Hardware requirements
Mini/micro USB cable
LPCXpresso55S28 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Note: MCUXpresso IDE project default debug console is semihost
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (P6) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
LPCXpresso55S69
Hardware requirements
Mini/micro USB cable
LPCXpresso55s69 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Note: MCUXpresso IDE project default debug console is semihost
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (P6) on the board
Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
LPCXpresso845MAX
Functional description
This example shows the basic usage for DMA. Just move data from source address located in RAM to destination address which also located in RAM by hardware trigger.
Hardware Requirements
Mini/micro USB cable
LPCXpresso845MAX board
Personal Computer
Board Settings
No special settings are required.
Run the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP port(J4 on the board).
Open a serial terminal with the following settings:
9600 baud rate
8 data bits
No parity
One stop bit
No flow control
Choose an IDE, building the project and download the program to the target board. More information about how to compile and program the project can refer to the
[Getting Started with MCUXpresso SDK](../../../../docs/Getting Started with MCUXpresso SDK.pdf).
Launch the debugger in your IDE to begin running the demo.
Expected Result
When the example runs successfully, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
MIMXRT685-AUD-EVK
Hardware requirements
Micro USB cable
MIMXRT685-AUD-EVK board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the 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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW1 to trigger one shot DMA transfer.
SW1 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4
MCXW23-EVK
Hardware requirements
Mini/micro USB cable
MCXW23-EVK Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the EVK board J33.
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, the following message is displayed in the terminal:
DMA hardware trigger example begin.
Destination Buffer:
0 0 0 0
Press SW4 to trigger one shot DMA transfer.
SW4 is pressed.
DMA hardware trigger example finish.
Destination Buffer:
1 2 3 4