MCUXpresso_LPC55S69/boards/lpcxpresso55s69/driver_examples/spi/interrupt/cm33_core0

Overview

The spi_interrupt example shows how to use spi functional API to do interrupt transfer:

In this example, one spi instance as master and another spi instance as slave. Master sends a piece of data to slave, and check if the data slave received is correct.

SDK version

• Version: 2.15.000

Toolchain supported

• IAR embedded Workbench 9.40.1
• Keil MDK 5.38.1
• GCC ARM Embedded 12.2
• MCUXpresso 11.8.0

Hardware requirements

• Micro USB cable
• LPCXpresso55s69 board
• Personal Computer

Board settings

    Master_board(SPI7)           Slave_board(SPI2)                          
Pin Name   Board Location     Pin Name   Board Location                     
MISO       P17  pin 12         MISO      P18  pin 6
MOSI       P17  pin 10         MOSI      P18  pin 10
SCK        P17  pin 14         SCK       P18  pin 8
SSEL1      P17  pin 1          SSEL0     P17  pin 16

Prepare the Demo

Note: MCUXpresso IDE project default debug console is semihost

1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (P6) on the board
2. Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
   • 115200 baud rate
   • 8 data bits
   • No parity
   • One stop bit
   • No flow control
3. Download the program to the target board.
4. Reset the SoC and run the project.

Running the demo

When the demo runs successfully, the log would be seen on the CMSIS DAP terminal like:

SPI one board interrupt example started!

SPI transfer finished!
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