DDR frequency conversion design method and device

Abstract

The present invention discloses a DDR frequency conversion design method and device. The design method is applied to a DDR frequency conversion device. The device comprises an SDRAM module, an AXI master module, an APB slave module, an instruction storage module, an instruction parsing module, a DMA instruction reading module. The method comprises the following steps of: the SDRAM module storing CPU instruction data; after receiving a start instruction, the APB slave module transmitting the start instruction to the DMA instruction reading module; after receiving the start instruction, the DMA instruction reading module obtaining the instruction data from the SDRAM module, and storing the obtained instruction data in the instruction storage module; instruction parsing module parsing the instruction data stored in the instruction storage module, and transmitting the parsed instruction data to the AXI master module. By adopting the design method, the operation processes of instruction reading, storage, and parsing during DDR frequency conversion are greatly simplified; meanwhile, the hardware cost is reduced, the DDR frequency conversion becomes fast and efficient, and therefore the system power consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a DDR frequency conversion design method and device. Background technique [0002] With the development of science and technology and the progress of society, people's daily life has been greatly improved, and electronic equipment has sprung up like mushrooms after rain, showing a thriving scene. During the operation of the SOC system, the DDR operating frequency is very important to the power consumption. If the DDR frequency is kept at a high state for a long time, although it can meet the needs of running applications, the electronic device is in standby or does not call the application. When the status of the program is changed, it also causes a waste of resources and a large power consumption. However, if the DDR is kept in a low state, it will not be able to meet the needs of running applications and bring bad experience to users. Therefore, in order to optimiz...

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Problems solved by technology

[0005] Therefore, it is necessary to provide a technical solution for DDR frequency conversion to solve the problems of complex operation, cumbersome steps, and high hardware cost when performing DDR frequency conversion.

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