TI手提超声系统DSP解决方案

作者：时间：2012-05-25来源：网络收藏

TMS320DM648性能介绍

TMS320DM648 – Well suited for medical imaging applications needing high-performance

processing, TMS320C64x+ DSPs – which include the TMS320DM648 – are the high-performance fixed-point DSPs in the TMS320C6000? DSP platform. DM647/DM648 devices are based on TI’s third-generation high-performance, advanced VelociTI? very long instruction word (VLIW) architecture. With performance of up to 7,200 MIPS at a clock rate of 900 MHz, the C64x+? DSP core offers a high-performance solution to a medical imaging processing challenge.

图6.TMS320DM648方框图

TMS320DM644x性能介绍

TMS320DM644x – Ideal for portable imaging applications, TMS320DM644x digital media processors are highly integrated SoCs that combine the power of an ARM926 processor and a TMS320C64x+? DSP core. The TMS320DM644x enables medical equipment OEMs and ODMs to quickly bring to market products featuring robust operating systems support, rich user interfaces, high processing performance and long battery life through the maximum flexibility of a fully integrated mixed-processor solution.

图7.TMS320DM644x方框图

图8.C6455 + OMAP3530系统方框图

TMS320C6455性能介绍

A TMS320C6455 DSP is used here, with a wider EMIFA bus, which allows higher input data rates. Larger L2 memory and higher operating clock frequency are the major contributors to increased compute capability. In this example, the OMAP3530 plays the dual role of system controller and back-end processor.

The C6455 device is based on the third-generation high-performance, advanced VelociTI? very-long-instruction-word (VLIW) architecture developed by Texas Instruments (TI), making these DSPs an excellent choice for applications including video and telecom infrastructure, imaging/medical, and wireless infrastructure (WI). The C64x+? devices are upward code-compatible from previous devices that are part of the C6000? DSP platform.

Based on 90-nm process technology and with performance of up to 9600 million instructions per second (MIPS) [or 9600 16-bit MMACs per cycle] at a 1.2-GHz clock rate, the C6455 device offers cost-effective solutions to high-performance DSP programming challenges. The C6455 DSP possesses the operational flexibility of high-speed controllers and the numerical capability of array processors.

图9.TMS320C6455方框图

OMAP3515 和 OMAP3530性能介绍

The OMAP3515 and OMAP3530 processors are based on the enhanced OMAP?architecture, which features the superscalar ARM Cortex?-A8 processor, a 2-D/3-D graphics engine, high-performance DSP core and video accelerators to provide the best combination of general-purpose, graphics and video processing in a single chip. Combined with state-of-the-art power management techniques, these devices are well-suited for high-performance portable and handheld imaging applications such as portable ultrasound systems.