freertos_ecspi_loopback
Overview
The freertos_ecspi_loopback demo shows how the ecspi do a loopback transfer internally in FreeRTOS. The ECSPI connects the transmitter and receiver sections internally, and the data shifted out from the most-significant bit of the shift register is looped back into the least-significant bit of the Shift register. In this way, a self-test of the complete transmit/receive path can be made. The output pins are not affected, and the input pins are ignored.