SPRUJ53C April 2024 – February 2025 TMS320F28P550SG , TMS320F28P550SJ , TMS320F28P559SG-Q1 , TMS320F28P559SJ-Q1
The last source for generating ping frames is an external trigger. One of up to 32 different triggers can be selected. See Section 25.2.6 for the list of input sources.