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EDA/PLD Articles


61: CPLD the protection of the transmitter control system
Introduction The protection of the radar transmitter control logic control circuit, most of the +15 V using CMOS logic, the use of a variety of comparative fault is the analog comparator. This is not only so that components distributed and difficul...

62: MicroBlaze soft-core on the FPGA system-on-chip design
Xilinx's MicroBlaze 32 bit soft processor core is to support the standard peripheral bus CoreConnect collection. MicroBlaze processor running at 150MHz clock, to provide the 125 D-MIPS performance, the design is well suited for network, telecomm...

63: Based on Boundary Scan Circuit Board Fault Diagnosis EPM9320LC84
IEEE 1149.1 standard for boundary-scan technology is the complexity of digital circuits have been made. Standard test of self-government technology has become digital system design-for-test of the mainstream. In the use of boundary-scan technology o...

64: CPLD-based three-phase multi-waveform function generator design
1 Introduction Direct Digital Synthesis  Direct Digital Synthesis, DDS is the 60's at the end of the 20th century appeared the third generation of frequency synthesis. The technology from concept phase to Nyquist sampling theorem in time dom...

65: In-System Programmable Generic Digital Switch ispGDS14 The Principle and Application
In-System Programmable Generic Digital Switch ispGDS14 (in sys-tem programmable Generic Digital Switch) is produced by a Lattice In-System Programmable ISP (In System pro-grammability) switching device. Which ISP technology is the first to introduce...

66: CPLD realization of DSP with the use of the connection between the PLX9054
CPLD is a complex programmable logic device users. It is a flexible operation, the development of rapid, low-risk investment, multiple programming and erase in-system programmable (In System programmability) and so on to become a hardware circuit de...

67: ISP technology in high-speed data acquisition module should be
With the deep sub-micron semiconductor manufacturing and nano-technology, programmable logic devices in the circuit design has a wide range of applications. ISP (In System Programmable) devices is an advanced programmable device, and its advantage i...

68: Digital frequency synthesizer to achieve the FPGA
1 Overview In 1971, the American scholar J. Tierncy, CMRader and B. Gold raised to all-digital technology, from concept phase waveform required for the direct synthesis of a new method of frequency synthesis. Limited to the level of technology and ...

69: CPLD EPM7512A low-voltage mixed-voltage system design
Introduction   With the rapid development of microelectronic technology, smaller and lower power consumption, better performance of low-voltage chips are emerging. I / O logic levels to 3.3V, 2.5V, 1.8V, or even lower direction. But the past ...

70: PLD internal phase-locked loop used to solve system design problems
Introduction The development trend of micro-electronics technology is the system-on-chip (SoC), which is on a single chip realization of the entire system, including the analog part and digital part. IC industry as an important branch of programmab...

71: PROTEL DXP circuit board with the general principles of design
Newbie guide - PROTEL DXP PCB with the general principles of design Circuit boards, including the general principles of design: the choice of circuit boards, circuit board size, component layout, wiring, pad, filling, such as inter-connection. Ci...

72: NIOS soft-core processor Linux boot U-boot design
1 Overview About 1.1 Nios Altera Corporation Nios is to RISC-based configurable, soft-core processor that can be trimmed. It has a 16-bit instruction set and 16/32 bit data path, through the will include 16 or 32-bit high-performance processors, i...

73: Programmable logic devices and application of the principle of APEX20K
1 the main characteristics of Altera Corporation APEX20K production is the first multi-core architecture with a programmable logic device, the density of 30 000-1 500 000, the clock speed up to 822MHz. This multi-core structure must overcome a numb...

74: Xilinx Foundation F3.1 structure and design flow
Xilinx Foundation F3.1 is mainly programmable Xilinx device development tools, it can be used to develop Xilinx's Spar-tan  Virtex  XC3000  XC4000  XC5200 Series XC9500 series FPGA chip and the CPLD chip。 powerful the platform...

75: FPGA-based Fast Fourier Transform
Fourier transform in digital signal processing is the basic operation, widely used for expression and analysis of discrete time-domain signal。 However, due to the volume of its operations and transform points in direct proportion to the relat...

76: FPGA-based direct digital frequency synthesis technology design
Direct Digital Synthesis (Direct Digital Fraquency Syn-thesis  that DDFS, generally referred to as DDS) concept from the phase required for the direct synthesis of a new wave of frequency synthesis。 relative bandwidth in the frequency swit...

77: FPGA chip and its application APA150
1 Overview Actel Launches APA150 is the second-generation-based Flash (flash memory) programmable FPGA (Field Programable Gate Array, Field Programmable Gate Array) devices ProASIC Plus a series of devices in the series both。 ASIC ( applicat...

78: PicoBlaze processor IP Core Principle and Application of
1 Overview PicoBlaze 8-bit microcontroller is the Xilinx for Virtex Series FPGA, Spartan-Iitxi series FPGA and CoolRunner-II family of embedded CPLD devices designed dedicated IP Core. It has resolved a constant programmable state machine coding (K...

79: Nios platform based on optical signal acquisition system-on-chip design
Introduction A promising new technology - fiber optics and fiber Bragg grating (FBG, Fiber Bragg Grating) technology, has been used in-line measurement of temperature and of deformation. Feature of FBG sensors have good stability, reliability. In a...

80: TRAC-based Design of phase-locked loop device
Fully reconfigurable analog circuits (Total Reconfigurable Analog Circuit, referred to as TRAC) is a British Fast Analog Solutions Ltd (referred to as FAS) products of field programmable analog devices collectively family of products, including TRAC...


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