Method for processing abnormity of transceiver in skylight controller

Abstract

The invention relates to the technical field of automobile sunroof controllers, in particular to a method for processing abnormity of a transceiver in a sunroof controller, which comprises the following steps of: configuring or resetting each functional module in a used MCU (Microprogrammed Control Unit) to enable the MCU to enter a normal working mode; reading the state information of the skylight stored in the EEPROM during the last power-off or dormancy; all threads and task scheduling are executed in the main function, software running state monitoring is carried out, and after LIN transceiver state monitoring is carried out, cyclic scheduling is carried out to execute tasks; the MCU can monitor power supply voltage and a sleep instruction in real time and write skylight data into the EEPROM before power failure and sleep; state data of the sunroof controller are written into the EEPROM before power failure or dormancy, so that the sunroof state is prevented from being lost. By detecting the state of the LIN transceiver in real time, even if the LIN transceiver can only receive the message and does not send the message, whether the LIN transceiver fails or not can be judged, and relevant measures can be taken in time when the LIN transceiver is detected to fail, so that adverse effects caused by the failure of the LIN transceiver are avoided.

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