Thank you for your reply.
I'm using GPIOs 14 and 15, especially GPIO 15, because I only receive.
I've been using the same hardware and software interface for a long time. What's changed is this DMA management on ttyAMA0 and not on the other ttyAMA[2,4], which work fine.
What do the following commands give you?
uname –a
cat /sys/kernel/debug/dmaengine/summary
I'm using GPIOs 14 and 15, especially GPIO 15, because I only receive.
I've been using the same hardware and software interface for a long time. What's changed is this DMA management on ttyAMA0 and not on the other ttyAMA[2,4], which work fine.
What do the following commands give you?
uname –a
cat /sys/kernel/debug/dmaengine/summary
Statistics: Posted by ernesto — Sun Mar 16, 2025 1:27 pm