دانلود کتاب معماری RISC-V و طراحی پردازنده DSP – طراحی و پیاده‌سازی یک هسته DSP RISC-V با کارایی بالا از ISA به SoC

DSP stands for Digital Signal Processor. It is a microprocessor speci_cally optimized for digital signal processing applications. With its programmability, real-time processing capability, and high computational ef_ciency, it is widely used in industrial control, renewable energy, wireless communication, electric vehicles, rail transport, and smart appliances. DSP technology has evolved for over 40 years, with continuous improvements in clock speed, peak processing power, and memory capacity. Texas Instruments (TI) has been a leading company in this _eld, developing product lines such as C6000, C5000, and C2000, and capturing a large share of the global market. China’s DSP industry has long relied on imports, with a low level of localization. This presents both a serious challenge and a major opportunity for domestic development. DSP design is highly complex. It is a large-scale engineering problem involving the integration of multiple technologies, including algorithms, chip design, software, and systems. Success depends not on a single breakthrough but on achieving correctness, performance targets, and system-level integration. RISC-V has rapidly developed over the past decade due to its openness, simplicity, modularity, and extensibility. It is widely seen as a technology that could reshape the global chip landscape. RISC-V serves as a catalyst. Its evolution is important but not decisive. If it fails to keep pace with the new ecosystem, it will need to adapt or risk being replaced by a more suitable open architecture. In fact, RISC-V is evolving rapidly. It now includes vector extensions and is developing security, encryption, and AI acceleration extensions. Concerns about fragmentation are addressed through con_gurable pro_les, which de_ne standard combinations of instruction modules and reduce software compatibility issues. A new wave of chip design innovation is underway, potentially reshaping the industry over the next 10–20 years. RISC-V has been recognized as a breakthrough technology because it represents a shift toward open and àexible chip design. Historically, the last major transformation occurred in the 1970s–80s, when architectures shifted from CISC to RISC and VLSI enabled new design methodologies. That era produced companies like ARM, MIPS, Synopsys, and Cadence. Today, RISC-V is driving a similar transformation. China’s chip industry has the opportunity to achieve a leap forward, similar to its success in electric vehicles. Many people see RISC-V merely as “another ISA” to replace ARM, but this overlooks its real advantage: àexibility and customization. It allows developers to design processors tailored to speciفc applications while avoiding intellectual property barriers. Despite its advantages, adopting RISC-V for DSP required careful consideration. DSP architectures differ signiفcantly from CPU architectures, and achieving optimal performance is challenging. Two approaches were considered:
-Designing a custom DSP architecture from scratch (optimal but resource-intensive)
-Using RISC-V and extending it with DSP instructions and microarchitecture optimizations (faster and more practical)
The latter approach was chosen. Results show that optimized RISC-V-based DSPs can match or even exceed international products. DSP performance cannot be judged solely by clock speed or peak computation. Key factors include real-time signal processing performance, algorithm efفciency, and toolchain quality. This book uses the SpringCore RISC-V DSP as an example and systematically explains DSP design, covering:
-Instruction set design
-Computational units