Serial communication layer

AN4274

8/13

DocID024358 Rev 1

The application layer can send frames to PLM only when the FSM return state is "M_IDLE.

If the data sent to FSM is valid, the FSM return state is "M_FRAME_RECEIVED".

M_FRAME_NOT_CONFIRMED

0Eh

4

The data sent to PLM is not confirmed

(error state).

M_WAIT_CONFIRM

0Fh

4

The FSM waits for the confirmed

command from PLM.

M_TO_ELAPSED

10h

1-3-4

Timeout elapsed (error state).

Table 1. FSM return values (continued)

Name

Value

FSM state

Description