SDSPI driver asynchronous - SDSPI Read Write
This example application shows how to use the SDSPI driver in asynchronous mode to perform block operations on the SD Card Media.
Description
This example uses the SDSPI driver in asynchronous mode. The asynchronous mode of the SDSPI driver performs non-blocking read and write operations. The SDSPI driver is configured to use DMA.
Downloading and building the application
To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.
Path of the application within the repository is apps/driver/sdspi/async/sdspi_read_write/firmware .
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| sam_a5d2_xult_freertos.X | MPLABX project for SAMA5D2 Xplained Ultra Evaluation Kit |
Setting up AT91Bootstrap loader
To load the application binary onto the target device, we need to use at91bootstrap loader. Refer to the at91bootstrap loader documentation for details on how to configure, build and run bootstrap loader project and use it to bootstrap the application binaries.
Setting up the hardware
The following table shows the target hardware for the application projects.
| Project Name | Board |
|---|---|
| sam_a5d2_xult_freertos.X | SAMA5D2 Xplained Ultra Evaluation Kit |
Setting up SAMA5D2 Xplained Ultra Evaluation Kit
Addtional hardware required
- I/O1 Xplained Pro Extension Kit
- Micro-SD card
Setting up the board
- Connect the I/O1 Xplained Pro Extension Kit to the EXT1 header
- Insert microSD card on the I/O1 Xplained Pro Extension Kit
- Short jumper JP2 (DEBUG_DIS)
- Connect the Debug USB port on the board to the computer using a micro USB cable
Running the Application
- Build the application using its IDE
- The LED is turned ON when the read data from the SD card matches with the written data
Refer to the following table for LED name:
| Board | LED Name |
|---|---|
| SAMA5D2 Xplained Ultra Evaluation Kit | RGB_LED(Green) |