flexio3_spi_int_lpspi_transfer_slave#
Overview#
The flexio_spi_slave_interrupt_lpspi_master example shows how to use flexio spi slave driver in interrupt way:
In this example, a flexio simulated slave connect to a lpspi master.
Running the demo#
You can see the similar message shows following in the terminal if the example runs successfully.
LPSPI Master interrupt - FLEXIO SPI Slave interrupt example start. This example use one lpspi instance as master and one flexio spi slave on one board. Master and slave are both use interrupt way. Please make sure you make the correct line connection. Basically, the connection is: LPSPI_master – FLEXIO_SPI_slave CLK – CLK PCS – PCS SOUT – SIN SIN – SOUT This is FLEXIO SPI slave call back. LPSPI master <-> FLEXIO SPI slave transfer all data matched!
End of Example.
Supported Boards#
MIMXRT1040-EVK
Hardware requirements
Mini/micro USB cable
MIMXRT1040-EVK board
Personal Computer
Board settings
Remove the M.2 external device if inserted on board Weld 0Ω resistor to R346,R350,R356,R362.
To make the example work, connections needed to be as follows:
MASTER connect to SLAVE
Pin Name Board Location Pin Name Board Location
PCS0 J17-3 SIN J33-6
SOUT J17-4 SOUT J33-4
SIN J17-5 SCK J33-3
SCK J17-6 PCS0 J33-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device with these 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
You can see the similar message shows following in the terminal if the example runs successfully.
LPSPI Master interrupt - FLEXIO SPI Slave interrupt example start.
This example use one lpspi instance as master and one flexio spi slave on one board.
Master and slave are both use interrupt way.
Please make sure you make the correct line connection. Basically, the connection is:
LPSPI_master -- FLEXIO_SPI_slave
CLK -- CLK
PCS -- PCS
SOUT -- SIN
SIN -- SOUT
This is FLEXIO SPI slave call back.
LPSPI master <-> FLEXIO SPI slave transfer all data matched!
End of Example.
EVK-MIMXRT1064
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1064 board
Personal Computer
Board settings
Weld 0Ω resistor to R278,R279,R280,R281.
To make the example work, connections needed to be as follows:
MASTER connect to SLAVE
Pin Name Board Location Pin Name Board Location
SOUT J24-4 SIN J22-2
SIN J24-5 SOUT J22-8
SCK J24-6 SCK J22-7
PCS0 J24-3 PCS0 J22-1
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device with these 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
You can see the similar message shows following in the terminal if the example runs successfully.
LPSPI Master interrupt - FLEXIO SPI Slave interrupt example start.
This example use one lpspi instance as master and one flexio spi slave on one board.
Master and slave are both use interrupt way.
Please make sure you make the correct line connection. Basically, the connection is:
LPSPI_master -- FLEXIO_SPI_slave
CLK -- CLK
PCS -- PCS
SOUT -- SIN
SIN -- SOUT
This is FLEXIO SPI slave call back.
LPSPI master <-> FLEXIO SPI slave transfer all data matched!
End of Example.