SNAU279A July 2022 – September 2022
Standard SPI/I2C programming, GPIO0, or GPIO1 can be used to generate a SYSREF request. The TICS Pro software and EVM is designed to use GPIO2 for SPI readback (SDO). Accordingly, GPIO2 is not listed in the pins as it is dedicated for SPI readback. In a user application, any GPIO pin may be used.
Connect the desired GPIO pin to the MCU by setting S2 as ON on the switch block for the desired GPIO. Then, make sure the GPIO pin is configured for SYSREF_REQ on the GPIO tab of the GUI. A SYSREF Request can now be issued by toggling the GPIO buttons in the Pins section of the User Controls tab.