Hi
Does it mean that when I transmit data of this 32-bit transfer length on a baud rate of 1 Mbps, an interrupt will be triggered after 31250 transmissions?
---> Yes
Can I confirm the number of interrupt by "cat /proc/interrupts | grep ecspi"?
---> Of course ,you can
How do I use spidev_test tool to verify typical case and worst case?
---> The spidev_test doesn't have these functin, it can only do basic tranfer/mode test