alt Hacker News> The updater device then sends 64 byte chunks spread over 9 CAN 0x384 frames
Classic CAN uses 8 bytes long frame, so 64 bits. Is it a typo in the post, vor is it using CAN-FD?
Replies
baby_souffle • today at 2:32 PM
Must be. Can 1.x and 2.0 are fixed size frames.
irishcoffee • today at 2:47 PM
Could be TP.DT, multi packet.
My guess is a typo.
I read this as the chunks are 64 bytes and thus each chunk is split over 9 frames. I haven’t looked yet but it’s probably an ISO-TP esque framing protocol.