Hello All,
There is a board with BlackFin BF-537 DSP. We are not using the RTC which is built in BlackFin. I want to disable the RTC to avoid any unwanted activity. There is no way to disable the RTC by software. The RTC has the separate power supply input (VDDRTC), and the pins for connecting a 32k XTAL (RTXI and RTXO respectively). The datasheet says nothing on this matter. The customer support has no clue as usual. It seems logical to me that the VDDRTC should stay connected, and the RTXI should be pulled to the ground. What would be your opinion about that?
Vladimir Vassilevsky DSP and Mixed Signal Consultant