风险CO2:用于低功耗CO2度传感的RISC-V处理器的实施和性能评估
Ricardo Núñez-Prieto1,2, David Castells-Rufas1,2, Lluís Terés-Terés2,3
1Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain.
Micromachines
|July 29, 2023
概括
一个新的RISC-5处理器,RisCO2,为嵌入式系统提供了卓越的能源效率. 针对非分散性红外 (NDIR) CO2 传感器进行优化,RisCO2 在信号处理应用中显著降低了功耗和资源利用.
科学领域:
- 嵌入式系统工程 嵌入式系统工程
- 计算机架构 计算机架构
- 数字信号处理 数字信号处理
背景情况:
- 在电池驱动的嵌入式系统中,能源效率至关重要.
- RISC-V处理器提供灵活性,但在能源性能方面有所不同.
- 对CO2传感等特定应用程序的处理器进行评估至关重要.
研究的目的:
- 为了引入RisCO2,一个RISC-V处理器优化了能源效率.
- 为了评估RisCO2的性能与其他RISC-V核心在NDIR CO2传感器信号处理.
- 评估不同RISC-V实现的能源消耗和资源利用情况.
主要方法:
- 在PULPino SoC上实现RisCO2和其他四个RISC-V处理器 (Ri5cy,微风险,零风险,CV32E40P).
- 综合使用Vivado IDE进行性能评估.
- 在信号处理应用中测试非分散性红外 (NDIR) CO2 传感器.
主要成果:
- RisCO2显示了最低的能源消耗,比CV32E40P减少了53.5%,比微风险减少了94.8%.
- 与CV32E40P相比,RisCO2实现了最低的FPGA资源利用率,LUT减少了46.1%,与Ri5cy相比减少了59%.
- 基于RV32E_Zfinx的RisCO2是专门为低功率信号解调设计的.
结论:
- RisCO2是一个高能效的RISC-V处理器,适用于需要精确信号调制的NDIR CO2传感器.
- 在特定的用例中对处理器进行评估对于确定最佳的节能解决方案至关重要.
- 结果为设计使用RISC-V的节能嵌入式系统提供了宝贵的见解.
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