Design of high temperature RS485 serial communication based on TMS470
Shi Qia · Electronic Design Engineering · 2015
High temperature serial communication of MCU system is widely applied in oil drilling environment. An RS485 serial communication hardware interface is designed based on the communication chip SN65HVD11, whose receiving and transmitting software is developed on the basis of the SCI module of the TMS470 manufactured by TI Company. The communication system can run steadily and reliably in 200 ℃ high temperature environment.