This demo describes how to use SDK drivers to implement the PWM feature by FLEXIO IP module. It outputs the PWM singal with fixed frequency defined by "DEMO_FLEXIO_FREQUENCY" in source code and dynamic duty from 99 to 1 to one of the FLEXIO pin.

The flexio_spi_master_dma_spi_slave example shows how to use flexio spi master driver in dma way:In this example, a flexio simulated master connect to a spi slave .

The flexio_spi_slave_dma_spi_master example shows how to use flexio spi slave driver in dma way:In this example, a flexio simulated slave connect to a spi master.

The flexio_spi_master_interrupt_spi_slave example shows how to use flexio spi master driver in interrupt way:In this example, a flexio simulated master connect to a spi slave .

The flexio_spi_slave_interrupt_spi_master example shows how to use flexio spi slave driver in interrupt way:In this example, a flexio simulated slave connect to a spi master.

The flexio_uart_dma example shows how to use flexio uart driver in dma way:In this example, a flexio simulated uart connect to PC through USB-Serial, the board will send back all charactersthat PC send to the board. Note: two queued transfer in this example, so please input even number characters.

The flexio_uart_interrupt_ring_buffer example shows how to use flexio uart driver in interrupt way withRX ring buffer enabled:In this example, a flexio simulated uart connect to PC through USB-Serial, the board willsend back all characters that PC send to the board.Note: The example echo every 8 characters, so input 8 characters every time.

The flexio_uart_interrupt example shows how to use flexio uart driver in interrupt way:In this example, a flexio simulated uart connect to PC through USB-Serial, the board will send back all charactersthat PC send to the board. Note: two queued transfer in this example, so please input even number characters.

The flexio_uart_polling example shows how to use flexio uart driver in polling way:In this example, a flexio simulated uart connect to PC through USB-Serial, the board will send backall characters that PC send to the board.

The GPIO Example project is a demonstration program that uses the KSDK software to manipulate the general-purposeoutputs.The example is supported by the set, clear, and toggle write-only registers for each port output data register. The example uses the software button to control/toggle the LED.