3 results about "RISC-V" patented technology

The present invention claims protection for an audio noise reduction accelerator system and method based on the expansion of RISC v custom instruction set, which belongs to the field of integrated circuit technology, and mainly includes: E203_CORE, NICE_CORE, NICE_Interface, E203_SOC, audio codec WM8731 module, and audio noise reduction FxLMS algorithm. Among them, E203_CORE is connected to NICE_CORE through NICE_Interface, E203_CORE, NICE_CORE and related peripheral ports together form E203_SOC, E203_SOC is connected to the audio codec WM8731 module, and the audio noise reduction FxLMS algorithm is downloaded to the RISC v processor core through software programming for operation. The innovation point is that compared with the processor of ARM instruction set architecture, the processor using RISC v custom instruction set can accelerate the specific operation part of the audio noise reduction FxLMS algorithm; the present invention can further optimize the problems of area, power consumption, granularity, etc., while improving the flexibility and feasibility of the algorithm.

The utility model provides a functional detection and verification platform used for an RISC-V framework. The RISC-V processor comprises an RISC-V processor, an HPCA connector and an HPCB connector are arranged on the RISC-V processor, the HPCA connector is connected with a FLASH memory and an SRAM memory, and the HPCB connector is connected with a CAN bus, a QSPI interface, an NAND memory, an SPACE WIRE bus, an IIC bus, a UART transmitter, a PWM, a 1553B bus and an SPI interface. The utility model relates to the technical field of integrated circuit design verification platforms.