Method for realizing SPI (Serial Peripheral Interface) bus communication between double processors of electro-hydraulic servo controller

• Main Authors: OUYANG QI, HUANG TAO, JIN YANG, YUAN KANG, CUI YUE, XU YONGLIN, YANG YAN, LUO HONGJIAN, HU SHU, YU DAIYU
• Format: Patent
• Language: Chinese; English
• Published: 02.06.2023
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention discloses a method for realizing SPI (Serial Peripheral Interface) bus communication between double processors of an electro-hydraulic servo controller. An STM32 microprocessor is provided with an STM32 state machine, and a DSP (Digital Signal Processor) microprocessor is provided with a DSP state machine; working state switching is coordinated through conversion of an STM32 state machine and a DSP state machine; comprising the following steps that A1, after an STM32 microprocessor receives an upper computer starting instruction, a DSP microprocessor is controlled to work through a flow control pin; a2, the STM32 microprocessor controls a DSP microprocessor to switch a DSP state machine to a data communication state through a command message; a3, the STM32 microprocessor obtains the sensor data collected by the DSP microprocessor; a4: STM32 microprocessor determining whether to receive upper computer stop instruction- If yes, turning to the step A5; if not, turning to the step A3; and A5, the ST