Frequent data exchange among all kinds of memories has become an inevitable phenomenon in the process of modern embeddedsoftware design. In order to improve the ability of the embedded system data＇s throughput and co...Frequent data exchange among all kinds of memories has become an inevitable phenomenon in the process of modern embeddedsoftware design. In order to improve the ability of the embedded system data＇s throughput and computation, most embeddeddevices introduce Enhanced Direct Memory Access （EDMA） data transfer technology. TMS320C6678 is a multi-core DSPproduced by Texas Instruments （TI）. There are ten EDMA transmission controllers in the chip for configuration and datatransmissions are allowed to be performed between any two pieces of storage at the same time. This paper expounds the workingmechanism of EDMA based on multi-core DSP TMS320C6678. At the same time, multiple data sets are provided and thebottleneck of limiting data throughout is analyzed and solved.展开更多
Multi-core architectures are widely used to in time-to-market and power consumption of the chips enhance the microprocessor performance within a limited increase Toward the application of high-density data signal pro...Multi-core architectures are widely used to in time-to-market and power consumption of the chips enhance the microprocessor performance within a limited increase Toward the application of high-density data signal processing, this paper presents a novel heterogeneous multi-core architecture digital signal processor （DSP）, YHFT-QDSP, with one RISC CPU core and 4 VLIW DSP cores. By three kinds of interconnection, YHFT-QDSP provides high efficiency message communication for inner-chip RISC core and DSP cores, inner-chip and inter-chip DSP cores. A parallel programming platform is specifically developed for the heterogeneous nmlti-core architecture of YHFT-QDSP. This parallel programming environment provides a parallel support library and a friendly interface between high level application softwares and multi- core DSP. The 130 nm CMOS custom chip design results benchmarks show that the interconnection structure of in a high speed and moderate power design. The results of typical YHFT-QDSP is much better than other related structures and achieves better speedup when using the interconnection facilities in combing methods. YHFT-QDSP has been signed off and manufactured presently. The future applications of the multi-core chip could be found in 3G wireless base station, high performance radar, industrial applications, and so on.展开更多
文摘Frequent data exchange among all kinds of memories has become an inevitable phenomenon in the process of modern embeddedsoftware design. In order to improve the ability of the embedded system data＇s throughput and computation, most embeddeddevices introduce Enhanced Direct Memory Access （EDMA） data transfer technology. TMS320C6678 is a multi-core DSPproduced by Texas Instruments （TI）. There are ten EDMA transmission controllers in the chip for configuration and datatransmissions are allowed to be performed between any two pieces of storage at the same time. This paper expounds the workingmechanism of EDMA based on multi-core DSP TMS320C6678. At the same time, multiple data sets are provided and thebottleneck of limiting data throughout is analyzed and solved.
基金supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China under Grant No.2009ZX01034-001-001-006the National High Technology Research and Development 863 Program of China under Grant No.2007AA01Z108the Program for Changjiang Scholars and Innovative Research Team in Universities of China under Grant No.IRT0614.
文摘Multi-core architectures are widely used to in time-to-market and power consumption of the chips enhance the microprocessor performance within a limited increase Toward the application of high-density data signal processing, this paper presents a novel heterogeneous multi-core architecture digital signal processor （DSP）, YHFT-QDSP, with one RISC CPU core and 4 VLIW DSP cores. By three kinds of interconnection, YHFT-QDSP provides high efficiency message communication for inner-chip RISC core and DSP cores, inner-chip and inter-chip DSP cores. A parallel programming platform is specifically developed for the heterogeneous nmlti-core architecture of YHFT-QDSP. This parallel programming environment provides a parallel support library and a friendly interface between high level application softwares and multi- core DSP. The 130 nm CMOS custom chip design results benchmarks show that the interconnection structure of in a high speed and moderate power design. The results of typical YHFT-QDSP is much better than other related structures and achieves better speedup when using the interconnection facilities in combing methods. YHFT-QDSP has been signed off and manufactured presently. The future applications of the multi-core chip could be found in 3G wireless base station, high performance radar, industrial applications, and so on.
