Design of The Autocollimator Interface Based on TMS320F2812

In order to convenient the design of the autocollimator interface, this paper introduces the design of hardware and software of the autocollimator interface, and detailed analysis some key links The SPI extension module (EEPROM) based on abundance on-chip resource of TMS320F2812 DSP is used to storage the equivalent of misalignment angle; The CAN extension module (CAN bus) based on CAN module is used to communicate with other computers; SCI extension module (RS232) is used which is convenient for the system debugging, and extension interfaces are left. Meanwhile, the corresponding design of software is also given in the paper. Prototype tests show that the design of the autocollimator interface can fully satisfy the requirements of the system. The design experience can be referred in similar engineering.