can fixes are compile tested only. I don't have those boards. f3 i2c is tested on i2c and gives the same results l1 low power demo seems to have been broken for some time already. => should be fixed, but not something I'm going to work on right now.
README
This test sets up the CAN interface on Lisa/M and transmits 8 bites every 100ms. The first byte is being incremented in each cycle. The demo also receives messages and is displaing the first 4 bits of the first byte on the board LEDs.