With the continuous development of consumer electronics, Internet of Things and other fields, user needs are becoming more and more complex and diverse. Therefore, we must choose the right processor (SoC) system in the design of embedded systems. Of course, we also need to consider cost and work. Consumption, performance, I / O resources, etc., but with the increase of practice cases, FPGAs have become the mainstream choice for embedded system design.
Xilinx provides a rich set of devices and simple development tools as an industry leader in programmable logic devices (FPGAs). Here are some of the following:
FPGA/SoC: The earliest we all used pure FPGA design, using FPGA resources to implement soft-core processors such as Microblaze, Picoblaze, etc. Now Xilinx has introduced Zynq SoC and Zynq UltraScale+ MPSoC series, which integrate hard-core processors ( Dual-core ARM Cortex-A9 CPU or Quad-A53+Dual-R5 GPU), which not only brings improvements in performance, power consumption, and price/performance, but also reduces PCB size;
Power consumption: The Xilinx Zynq UltraScale+ MPSoC family has been greatly improved on the basis of previous pure FPGA devices. It supports multiple power modes: Full-Power mode; Low-Power mode; Sleep mode, DRAM pause; Power-Off Mode, providing a rich and flexible power management solution, flexible switching between performance and power consumption;
Analog Processing: The ADC function is integrated as early as the Virtex series, but this is limited to monitoring the internal analog components such as voltage and temperature. Then, two 1Msamples/sec@12-bits ADC modules are integrated in the 7 series to support internal and external analog acquisition. The Zynq UltraScale+ RFSoC integrates higher performance ADCs/DACs modules: 4Gsamples/sec@12 bits ADCs / 6.5Gsamples/sec@14 bits DACs, can be applied to 15G, radar and other fields.
Security: We all know the bitstream form of the FPGA boot file. Both the Xilinx Zynq-7000 SoC and the Zynq UltraScale+ MPSoC support encrypted bitstreams that are loaded into the processor for secure decryption.
Development Tools: The most important thing for engineers is the development tools. Good development tools can do more with less. The Vivado tool, introduced with the Xilinx Zynq 7000 series, integrates a wealth of features: IP integrator (IPI) is a graphical IP design plug-in; HLS (High Level Synthesis) support engineers use the C/C++ language to generate HDL Function code. In addition, SDSoC is a complete system, software and hardware design tool that supports the development of embedded system software and hardware functions in C/C++ language. SDAccel is a design tool based on OpenCL development framework.
This shows that FPGA/SoC vendors have spent a lot of effort to optimize devices and improve development tools, making them easier to apply to embedded system design, and our learning process will be easier than in the past, in the near future. FPGA/SoC will gain wider application.
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