Hi.
I have a question about the speed of GPIOs on RPi4 and RPi5.
I am processing GPIO1 up and then GPIO2 down. I am looking at the GPIO activity on an oscilloscope and I am wondering if there is any difference in speed between the RPi4 and RPi5 GPIOs.
The result is that RPi5 is very slow compared to RPi4.
Is this correct about this result and how can I speed up the GPIO switching speed of RPi5?
The libraries I tried are as follows
RPi4: bcm2835.h https://www.airspayce.com/mikem/bcm2835/
RPi5: GPIOZERO https://gpiozero.readthedocs.io/en/latest/
The waveforms observed on the oscilloscope are shown below.
RPi4: 73.6nsRPi5: 1920ns
I have a question about the speed of GPIOs on RPi4 and RPi5.
I am processing GPIO1 up and then GPIO2 down. I am looking at the GPIO activity on an oscilloscope and I am wondering if there is any difference in speed between the RPi4 and RPi5 GPIOs.
The result is that RPi5 is very slow compared to RPi4.
Is this correct about this result and how can I speed up the GPIO switching speed of RPi5?
The libraries I tried are as follows
RPi4: bcm2835.h https://www.airspayce.com/mikem/bcm2835/
RPi5: GPIOZERO https://gpiozero.readthedocs.io/en/latest/
The waveforms observed on the oscilloscope are shown below.
RPi4: 73.6ns
Statistics: Posted by ShinYamada — Tue Oct 08, 2024 8:18 am