Specifications

47
47
Code Flow—One Example
ISR generated whenever USB event occurs
Parse the
ISR to
determine
USB event
Handle_Setup Routine
USB ISR Routine
Data that gets written to USB
endpoint 0 FIFO
1
2
3
4
5
In these samples we can follow the firmware after the interrupt is received. The
example here is showing how the firmware determines what type of request was
received and how the data is returned to the host.