Trying to toggle the state of a GPIO pin with PMBUS commands. First am I correct to assume that any GPIO pin can be toggled by using PMBUS commands?
Have a logic controlled GPIO (UCD90160A) pin 11 GPIO1 (pin ID 18), active low, OD output. Using the FUSION GUI SMBus_I2C_SAA tool (with address properly set) using write byte, I send the GPIO_SELECT command - FA 93. Then set the output active low, using the GPIO_CONFIG command, FB 03. This doesn't seem to work.