Power management | Cypress Semiconductor
I'm using GPIF to control some periphals by master mode. However, now I met an issue with it. If there is no transmision on the USB link for a while, the PC will request FX3 to enter low power mode. At this time, there will be some unexpected noise on GPIF signals, no matter false or true returned in callback function of power mode change. If I force the PC to disable power management on USB hub, then the issue never happens.
I'd like to know how to avoid this noise signals.
Thanks & Regards,