Embedded software interface design method with shared memory

[0022] Example

[0023] The application scenario is as follows: In DSP-based servo control, the system software of one servo can control multiple servos (two servos in this example). For the control of the steering gear, firstly, the data controlled by the steering gear is required, that is, the relevant information of the steering gear, secondly, the control command of the steering gear is required, and finally the state of the steering gear control is reported to the upper system.

[0024] For the servo software, use the method based on shared memory to design the interface part, such as image 3 shown. First establish a shared memory data dictionary pool. In this example, the shared memory data dictionary pool includes two parts, which are an integer shared memory data dictionary pool and a floating point shared memory data dictionary pool. For the defined shared memory data pool, the IO_Config file is generated by the tool, and the data address of the FPGA or hardware devi