flexio3_spi_int_lpspi_transfer_master#
Overview#
The flexio_spi_master_interrupt_lpspi_slave example shows how to use flexio spi master driver in interrupt way:
In this example, a flexio simulated master connect to a lpspi slave .
Running the demo#
You can see the similar message shows following in the terminal if the example runs successfully.
FLEXIO Master - LPSPI Slave interrupt example start. This example use one flexio spi as master and one lpspi instance as 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: FLEXI_SPI_master – LPSPI_slave CLK – CLK PCS – PCS SOUT – SIN SIN – SOUT This is LPSPI slave call back. FLEXIO SPI master <-> LPSPI 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:
SLAVE connect to MASTER
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.
FLEXIO Master - LPSPI Slave interrupt example start.
This example use one flexio spi as master and one lpspi instance as 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:
FLEXIO_SPI_master -- LPSPI_slave
CLK -- CLK
PCS -- PCS
SOUT -- SIN
SIN -- SOUT
This is LPSPI slave call back.
FLEXIO SPI master <-> LPSPI 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:
SLAVE connect to MASTER
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.
FLEXIO Master - LPSPI Slave interrupt example start.
This example use one flexio spi as master and one lpspi instance as 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:
FLEXIO_SPI_master -- LPSPI_slave
CLK -- CLK
PCS -- PCS
SOUT -- SIN
SIN -- SOUT
This is LPSPI slave call back.
FLEXIO SPI master <-> LPSPI slave transfer all data matched!
End of example.