flexspi_psram_dma3_transfer#
Overview#
The flexspi_psram_edma_transfer example shows how to use flexspi driver with dma:
In this example, flexspi will send data and operate the external PSRAM connected with FLEXSPI. Some simple flash command will be executed, such as Read Data and Write Data. Example will write/read through the whole chip, using eDMA transfer way.
Supported Boards#
EVK9-MIMX8ULP
Hardware requirements
Micro USB cable
MIMX8ULP-EVK/EVK9 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
After power on board, stop the uboot and ensure the board will not autoboot to linux.
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo.
Running the demo
The log below shows the output of the hello world demo in the terminal window:
FLEXSPI example started!
DMA Command Read/Write data succeed at all address range!
EVK-MIMX8ULP
Hardware requirements
Micro USB cable
MIMX8ULP-EVK/EVK9 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
After power on board, stop the uboot and ensure the board will not autoboot to linux.
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo.
Running the demo
The log below shows the output of the hello world demo in the terminal window:
FLEXSPI example started!
DMA Command Read/Write data succeed at all address range!