The usart_dma example shows how to use usart driver with DMA:In this example, one usart instance connect to PC through usart, 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 uart_interrupt_ring_buffer example shows how to use uart driver in interrupt way withRX ring buffer enabled:In this example, one uart instance connect to PC through uart, 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 uart_polling example shows how to use uart driver in polling way:In this example, one uart instance connect to PC through uart, the board will send back all characters that PCsend to the board.

The usart synchronous transfer example shows how to use usart driver in synchronous way.

The purpose of this demo is to show wakeup from deep sleep mode using MicroTick timer.The demo sets the MicroTick Timer as a wake up source and puts the device in deep-sleep mode. The MicroTick timer wakes up the device.

The purpose of this demo is to show wakeup from deep sleep mode using MicroTick timer.The demo sets the MicroTick Timer as a wake up source and puts the device in deep-sleep mode. The MicroTick timer wakes up the device.

The WDOG Example project is to demonstrate usage of the KSDK wdog driver.In this example,quick test is first implemented to test the wdog.And then after 5 times of refreshing the watchdog, a timeout reset is generated.