ASIC design choosing highly integrated, low-power, short development cycle to complete this FPGA design to achieve a system of background, has a strong practical significance a
Click here to download the full size of the above Circuit.
nd broad market space. Companies using xilinx Spartan 3E FPGA family as the core control device, this device uses 90ns advanced technology, the maximum capacity of 500,000 to support 32-bit RISC processor with 128 Mbit Parallel Flash, sufficient to meet the design requirements. The project used to manage embedded soft-core implementation of the system using hardware recognition algorithms to ensure the integrity and validity of the identification system functions. The design uses a Fujitsu MBF200 fingerprint sensor, MBF200 hardware block diagram shown in Figure 6, the use of SPI mode, so MBF200 and FPGA only through MISO, MOSI,/S/C/S, SCLK four ports are connected./S/C/S is MBF200 enable terminal, SCLK is MBF200 system clock when required fingerprint signal, FPGA to/S/C/S to send low level, MBF200 work. FPGA through MOSI MBF200 to send control commands to control MBF200 data output mode and the transmission mode. VDD [3: 1] as a digital power input, VDDA [2: 1] as an analog power supply input, VSS [3: 1] is the digital ground, VSSA [2: 1] to analog, so the connection shown in Figure. In order to prevent interference with the digital signal analog signal with a 10 ohm resistor separated. And it is also connected between the input and the corresponding digital supply digital ground capacitance to the Court unless the DC signal. In order to prevent interference with digital signals between the ground, the design uses 0 ohm isolation. 0 ohm current path corresponds to a very narrow, can effectively limit the loop current, the noise is suppressed. Has a damping effect on the resistance in all frequency bands (0 ohm impedance there), this is stronger than the magnetic beads. MODE [1: 0] pins are used to set the interface mode MBF200 used in this design, set MODE [1: 0] is 01, SPI transmission mode is selected. In SPI mode which, AIN, ISET, FEST three interfaces will not spend, but according MBF200 internal circuit structure, preferably resistor connected to ground.
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
characters left: