The Hello World QSPI demo application provides a sanity check for new SDK build environments and board bring up. Itprints the "Hello World" string to the terminal using the SDK UART drivers. The purpose of this demo is to show how tocompile SDK applications to run and boot from QSPI flash or a QSPI alias region.This example can generate two different demos using a different linker file and a startup file:Program boot from QSPI region.Program boot from QSPI alias region (if the chip supports QSPI alias region).

The i2c_edma_b2b_transfer_master example shows how to use i2c driver as master to do board to board transfer with EDMA:In this example, one i2c instance as master and another i2c instance on the other board as slave. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

The i2c_edma_b2b_transfer_slave example shows how to use i2c driver as slave to do board to board transfer with a EDMA master:In this example, one i2c instance as slave and another i2c instance on the other board as master. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

The i2c_functional_interrupt example shows how to use I2C functional driver to build a interrupt based application:In this example , one i2c instance used as I2C master and another i2c instance used as I2C slave .1. I2C master send data to I2C slave in interrupt . (I2C Slave using interrupt to receive the data)2. I2C master read data from I2C slave in interrupt . (I2C Slave using interrupt to send the data)3. The example assumes that the connection is OK between master and slave, so there's NO error handling code.

The i2c_interrupt_b2b_transfer_master example shows how to use i2c driver as master to do board to board transfer with interrupt:In this example, one i2c instance as master and another i2c instance on the other board as slave. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

The i2c_interrupt_b2b_transfer_slave example shows how to use i2c driver as slave to do board to board transfer with interrupt:In this example, one i2c instance as slave and another i2c instance on the other board as master. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

The i2c_polling_b2b_transfer_master example shows how to use i2c driver as master to do board to board transfer using polling method:In this example, one i2c instance as master and another i2c instance on the other board as slave. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

The i2c_polling_b2b_transfer_slave example shows how to use i2c driver as slave to do board to board transfer with a polling master:In this example, one i2c instance as slave and another i2c instance on the other board as master. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

The i2c_read_accel_value example shows how to use I2C driver to communicate with an i2c device: 1. How to use the i2c driver to read a i2c device who_am_I register. 2. How to use the i2c driver to write/read the device registers.In this example, the values of three-axis accelerometer print to the serial terminal on PC throughthe virtual serial port on board.

The LED Blinky demo application provides a sanity check for the new SDK build environments and board bring up. The LED Blinky demo uses the systick interrupt to realize the function of timing delay. The example takes turns to shine the LED. The purpose of this demo is to provide a simple project for debugging and further development.