Would someone please go through the calculation refresher for understanding if one digital 3.3V level port on device can drive a GPIO port on another device? I understand the voltage levels for Voh, Vol, Vih, Vil, etc but want to see how to calculate and understand if the driving port can drive the receiving port.
Please explain this such that I can use these calculations for other digital devices on 3.3V levels to know the drive capabilities are fine.
If you can provide the calculations and what I can use moving forward for other pins between devices, that would be most appreciated.
The port that is driving the signal is shown below. It sends out a positive pulse every second, so need to know it can drive both high and low.
The port receiving the signal is on the TI AM3358 processor GPIO port pin.
Please explain this such that I can use these calculations for other digital devices on 3.3V levels to know the drive capabilities are fine.
If you can provide the calculations and what I can use moving forward for other pins between devices, that would be most appreciated.
The port that is driving the signal is shown below. It sends out a positive pulse every second, so need to know it can drive both high and low.
The port receiving the signal is on the TI AM3358 processor GPIO port pin.