2026-05-12T03:33:38Z https://ipsj.ixsq.nii.ac.jp/oai

oai:ipsj.ixsq.nii.ac.jp:00197781 2025-01-19T22:12:44Z 1164:2822:9758:9830

A Study of Real-Time Extension for RISC-V Processors A Study of Real-Time Extension for RISC-V Processors Aye, Myat Mon Thiem, Van Chu Kiyofumi, Tanaka Aye, Myat Mon Thiem, Van Chu Kiyofumi, Tanaka ポスターセッション In development of applications for real-time embedded systems, RTOS functions (system calls) are often used for easily designing the target system. However, behavior of RTOS is one of factors of unpredicted execution times, which affects the real-time processing. In this research, we investigate a possibility of making the execution times of RTOS constant or at least limiting them to relatively low upper bounds by introducing hardware functions. The proposed hardware is implemented as RTOS Management Unit (RMU) with a RISC-V processor in an FPGA. In development of applications for real-time embedded systems, RTOS functions (system calls) are often used for easily designing the target system. However, behavior of RTOS is one of factors of unpredicted execution times, which affects the real-time processing. In this research, we investigate a possibility of making the execution times of RTOS constant or at least limiting them to relatively low upper bounds by introducing hardware functions. The proposed hardware is implemented as RTOS Management Unit (RMU) with a RISC-V processor in an FPGA. technical report 情報処理学会 2019-06-14 application/pdf 研究報告組込みシステム（EMB） 7 2019-EMB-51 1 2 2188-868X AA12149313 https://ipsj.ixsq.nii.ac.jp/record/197781/files/IPSJ-EMB19051007.pdf eng