Application of DSP+FPGA Main Control Board Design Solution Based on C6657 + Domestic FPGA in Nuclear Power Robots
1 Evaluation Board Introduction
Based on TI KeyStone C66x multi-core fixed-point/floating-point DSP TMS320C665x + domestic FPGA A7/K7 processor;
The TMS320C665x has a main frequency of 1.0G/1.25GHz, with single-core computing capability up to 40G MACS and 20G FLOPS. The FPGA XC7A100T features 101K logic cells and 240 DSP Slices; Ø
The TMS320C665x and FPGA are connected via communication interfaces such as uPP, EMIF, I2C, PCIe, and SRIO, with PCIe and SRIO achieving a maximum transmission speed of 5 GBaud per lane; Ø
The FPGA acquisition card supports dual-channel 250MSPS12Bit high-speed high-precision ADC and one-channel 175MSPS12Bit high-speed high-precision DAC, meeting various data acquisition requirements;
Supports Gigabit Ethernet, connectable to industrial network cameras, and also supports common interfaces such as I2C, SPI, UART, and McBSP; Ø
Supports expansion modules such as CameraLink input/output and VGA output;
Supports bare metal and SYS/BIOS operating systems.

Figure 1 Physical image of the development board
The XM6657F-EVM, launched by Shenzhen Xinmai Technology, is a high-end heterogeneous multi-core evaluation board designed based on TI C6000 series TMS320C6657 (2x C66x@1.25GHz DSP) and domestic FPGA A7/K7 SoC processors, consisting of a core board and a baseboard.
The core board internally combines the DSP and Zynq through communication interfaces such as SPI, EMIF16, uPP, and SRIO, forming a DSP+Zynq architecture, thereby realizing a unique, flexible, and powerful DSP+Zynq high-speed data acquisition and processing system.
The baseboard offers rich interface resources, including 2-channel CameraLink bidirectional input/output, 1-channel SFP+ optical port, 2-channel Gigabit Ethernet ports, dual-channel PCIe, USB, 1-channel 4K HDMI OUT, Micro SD, LPC FMC, M.2 interface, audio input/output, and other interfaces, facilitating users in quickly conducting product solution evaluation and technical pre-research.
The baseboard adopts an 8-layer board design with immersion gold lead-free process, suitable for high-speed data acquisition and processing fields such as radar sonar, optoelectronic detection, underwater detection, machine vision, video communication systems, power acquisition, optical cable survey instruments, medical instruments, target tracking, and rail transit.
The SOM-XM6657F core board exposes all resource signal pins of the DSP and Zynq, making secondary development extremely easy. Customers only need to focus on upper-layer applications, which reduces development difficulty and time cost, enabling products to be quickly launched to market and seize market opportunities in a timely manner.
2 Typical Application Areas
Target Recognition
Image Processing
Radar Detection
Software Defined Radio
Video Tracking
Medical Instruments
Optoelectronic Detection
Positioning and Navigation
Machine Vision
Power Acquisition
Underwater Detection
Rail Transit
3 Software and Hardware Parameters