This is a FLEXCOM SPI master test application which is provided to demonstrate
communication between SPI master and the corresponding SPI slave application available
under - apps/flexcom/spi/slave/flexcom_spi_write_read/firmware.
Parent topic:Harmony 3 Peripheral Library Application Examples for SAMA5D2 Family
This example uses the FLEXCOM SPI peripheral library in master mode and serves as a
test application to demonstrate communication between SPI master and corresponding
SPI slave application available at
apps/flexcom/spi/slave/flexcom_spi_write_read/firmware.
The SPI master writes data by sending a write command followed by two bytes of memory
address followed by the data to be written.
< WR_CMD > < ADDR_MSB > < ADDR_LSB > < DATA0 > … < DATA n >
The SPI slave asserts the Busy line to indicate to the SPI master that it is busy.
Once ready, the SPI slave de-asserts the Busy line. Once the SPI slave is ready, the
SPI master reads the data by sending read command followed by two bytes of memory
address and the number of bytes to read.
< RD_CMD > < ADDR_MSB > < ADDR_LSB > < NUM_BYTES >
The SPI slave responds by sending the data at the requested memory address. The SPI
master compares the sent data with the received data and repeats the test if it
matches.
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/flexcom/spi/master/flexcom_spi_write_read_test_app/firmware.
To build the application, refer to the following table and open the project using its
IDE.
Project Name | Description |
---|---|
sam_a5d2_curiosity.X | MPLABX project for SAMA5D29 Curiosity Development Board Kit |
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.
The following table shows the target hardware for the application projects.
Project Name | Description |
---|---|
sam_a5d2_curiosity.X | SAMA5D29 Curiosity Development Board Kit |
SETTING UP THE BOARD
Following table provides the Switch and LED names:
Board | Switch Name | LED Name |
---|---|---|
SAMA5D29 Curiosity Development Board | USER | RGB_LED (Green) |
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