SPRUJ53B April 2024 – September 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
FILE: interrupt_ex1_external.c
This program sets up GPIO0 as XINT1 and GPIO1 as XINT2. Two other GPIO signals are used to trigger the interrupt (GPIO10 triggers XINT1 and GPIO11 triggers XINT2). The user is required to externally connect these signals for the program to work properly.
XINT1 input is synced to SYSCLKOUT.
XINT2 has a long qualification - 6 samples at 510*SYSCLKOUT each.
GPIO16 will go high outside of the interrupts and low within the interrupts. This signal can be monitored on a scope.
Each interrupt is fired in sequence - XINT1 first and then XINT2
External Connections
Watch Variables