Digital-logic Driver
2021年6月20日Download here: http://gg.gg/v2eec
*Digital Logic Division
*Driver Logic App
*Logic Driver Pro
*Digital Logic Diagram Maker
The digital logic control input is interfaced to the timer’s Reset pin through a 4N35 optocoupler. The optocoupler provides isolation between the logic circuit and the high-voltage load circuit. A digital line driver helps improve the quality of a digital signal over a long cable run by slightly increasing the voltage level of the signal at its source to better “drive” the transmission line.ECEN 2350 - Digital Logic
*Simulator.io is a web-based online CAD tool to build and simulate logic circuits.
*NFC RFID contactless reader/writer – µFR Classic is the first developed device of Digital Logic µFR Series Reader/writers based on NFC and RFID technology. It operates at a frequency of 13.56 MHz, compliant with ISO14443 A&B and ISO18092 standards.
*In some cases, the digital logic output driver circuit might have an internal voltage drop when providing around 2-20ma current for the typical small indicator LED and this could also reduce the value of the resistance used a bit. Brighter high-power LEDs require higher current levels and special driver circuits.USB Blaster Installation
This page describes the steps needed to install the USB Blaster driver in Windows 10.
Connect the DE10-Lite board to a USB port on your computer. Then open the device manager in Windows: Press the Windows logo key and R to open a ’Run’ box. Enter the command ’devmgmt.msc’ and press OK. You should see the USB-Blaster listed under Other devices.
Right-click on USB-Blaster and select ’Update driver’.
On the next screen click on ’Browse my computer for driver software’
Point the driver search to your Quartus installation, typically located at ’C:intelFPGA_lite18.xquartusdrivers’. Important: Do not go any deeper than the ’drivers’ directory.
After clicking ’Next’ you should see the successful update message.
The first time you are using the programmer inside Quartus, the Hardware Setup window will say ’No hardware’
Click on ’Hardware Setup..’
Click on the ’Currently selected hardware’ button (where it says ’No Hardware’) and select USB-Blaster [USB-x]. Do not click on ’Add Hardware’.
Fujitsu mice house. Click on ’Close’ and you should be good to use the programmer to download code to the FPGA on the DE10-Lite board.
©2012-2018, P. Mathys. Last revised: 10-19-18, PM.
In digital electronicsthree-state, tri-state, or 3-statelogic allows an output or input pin/pad to assume a high impedance state, effectively removing the output from the circuit, in addition to the 0 and 1 logic levels.Digital Logic Division
This allows multiple circuits to share the same output line or lines (such as a bus which cannot listen to more than one device at a time).
Three-state outputs are implemented in many registers, bus drivers, and flip-flops in the 7400 and 4000 series as well as in other types, but also internally in many integrated circuits. Other typical uses are internal and external buses in microprocessors, computer memory, and peripherals. Many devices are controlled by an active-low input called OE (Output Enable) which dictates whether the outputs should be held in a high-impedance state or drive their respective loads (to either 0- or 1-level).
The term tri-state[1][citation needed]should not be confused with ternary logic (3-value logic).INPUTOUTPUTABC00Z (high impedance)1Z (high impedance)01011Driver Logic AppA tristate buffer can be thought of as a switch. If B is on, the switch is closed. If B is off, the switch is open.Uses[edit]
The basic concept of the third state, high impedance (Hi-Z), is to effectively remove the device’s influence from the rest of the circuit. If more than one device is electrically connected to another device, putting an output into the Hi-Z state is often used to prevent short circuits, or one device driving high (logical 1) against another device driving low (logical 0).
Three-state buffers can also be used to implement efficient multiplexers, especially those with large numbers of inputs.[2]
Three-state buffers are essential to the operation of a shared electronic bus.
Three-state logic can reduce the number of wires needed to drive a set of LEDs (tri-state multiplexing or Charlieplexing).Output enable vs. chip select[edit]
Many memory devices designed to connect to a bus (such as RAM and ROM chips) have both CS (chip select) and OE (output enable) pins, which superficially appear to do the same thing. If CS is not asserted, the outputs are high impedance.
The difference lies in the time needed to output the signal. When chip select is deasserted, the chip does not operate internally, and there will be a significant delay between providing an address and receiving the data. (An advantage of course, is that the chip consumes minimal power in this case.)
When chip select is asserted, the chip internally performs the access, and only the final output drivers are disabled by deasserting output enable. This can be done while the bus is in use for other purposes, and when output enable is finally asserted, the data will appear with minimal delay. A ROM or static RAM chip with an output enable line will typically list two access times: one from chip select asserted and address valid, and a second, shorter time beginning when output enable is asserted.Use of pull-ups and pull-downs[edit]
When outputs are tri-stated (in the Hi-Z state) their influence on the rest of the circuit is removed, and the circuit node will be ’floating’ if no other circuit element determines its state. Circuit designers will often use pull-up or pull-down resistors (usually within the range of 1–100 kΩ) to influence the circuit when the output is tri-stated.
The PCI local bus provides pull-up resistors, but they would require several clock cycles to pull a signal high given the bus’s large distributed capacitance. To enable high-speed operation, the protocol requires that every device connecting to the bus drive the important control signals high for at least one clock cycle before going to the Hi-Z state. This way, the pull-up resistors are only responsible for maintaining the bus signals in the face of leakage current.
Intel refers to this convention as ’sustained tri-state’, and also uses it in the Low Pin Count bus.Alternatives to a three-state bus[edit]
The open collector input/output is a popular alternative to three-state logic. For example, the I²C bus protocol (a bi-directional communication bus protocol often used between devices) specifies the use of pull-up resistors on the two communication lines. When devices are inactive, they ’release’ the communication lines and tri-state their outputs, thus removing their influence on the circuit. When all the devices on the bus have ’released’ the communication lines, the only influence on the circuit is the pull-up resistors, which pull the lines high. When a device wants to communicate, it comes out of the Hi-Z state and drives the line low. Devices communicating using this protocol either let the line float high, or drive it low – thus preventing any bus contention situation where one device drives a line high and another low.
Early microcontrollers often have some pins that can only act as an input, other pins that can only act as a push–pull output, and a few pins that can only act as an open collector input/output. A typical modern microcontroller has many three-state general-purpose input/output pins that can be programmed to act as any of those kinds of pins.Logic Driver Pro
A three-state bus is typically used between chips on a single printed circuit board (PCB), or sometimes between PCBs plugged into a common backplane.Digital Logic Diagram Maker
Usage of three-state logic is not recommended for on-chip connections but rather for inter-chip connections.[3]
Three-state buffers used to enable multiple devices to communicate on a data bus can be functionally replaced by a multiplexer.[4] That will help select output from a range of devices and write one to the bus.See also[edit]Notes and references[edit]
*^Tri-state is a registered trademark of National Semiconductor but is often used to describe devices made by any manufacturer.
*^Hill, Winfield; Horowitz, Paul (1989). The Art of Electronics. Cambridge University Press. pp. 495–497. ISBN0-521-37095-7.
*^경종민, On-Chip Buses/Networks for SoC ’On-Chip Buses [have] No use of tri-state signals [because] Tri-state bus is difficult for static timing analysis’
*^’Tri State Buffer’.External links[edit]
*Special-output Gates on All About CircuitsRetrieved from ’https://en.wikipedia.org/w/index.php?title=Three-state_logic&oldid=986590486’
Download here: http://gg.gg/v2eec
https://diarynote-jp.indered.space
*Digital Logic Division
*Driver Logic App
*Logic Driver Pro
*Digital Logic Diagram Maker
The digital logic control input is interfaced to the timer’s Reset pin through a 4N35 optocoupler. The optocoupler provides isolation between the logic circuit and the high-voltage load circuit. A digital line driver helps improve the quality of a digital signal over a long cable run by slightly increasing the voltage level of the signal at its source to better “drive” the transmission line.ECEN 2350 - Digital Logic
*Simulator.io is a web-based online CAD tool to build and simulate logic circuits.
*NFC RFID contactless reader/writer – µFR Classic is the first developed device of Digital Logic µFR Series Reader/writers based on NFC and RFID technology. It operates at a frequency of 13.56 MHz, compliant with ISO14443 A&B and ISO18092 standards.
*In some cases, the digital logic output driver circuit might have an internal voltage drop when providing around 2-20ma current for the typical small indicator LED and this could also reduce the value of the resistance used a bit. Brighter high-power LEDs require higher current levels and special driver circuits.USB Blaster Installation
This page describes the steps needed to install the USB Blaster driver in Windows 10.
Connect the DE10-Lite board to a USB port on your computer. Then open the device manager in Windows: Press the Windows logo key and R to open a ’Run’ box. Enter the command ’devmgmt.msc’ and press OK. You should see the USB-Blaster listed under Other devices.
Right-click on USB-Blaster and select ’Update driver’.
On the next screen click on ’Browse my computer for driver software’
Point the driver search to your Quartus installation, typically located at ’C:intelFPGA_lite18.xquartusdrivers’. Important: Do not go any deeper than the ’drivers’ directory.
After clicking ’Next’ you should see the successful update message.
The first time you are using the programmer inside Quartus, the Hardware Setup window will say ’No hardware’
Click on ’Hardware Setup..’
Click on the ’Currently selected hardware’ button (where it says ’No Hardware’) and select USB-Blaster [USB-x]. Do not click on ’Add Hardware’.
Fujitsu mice house. Click on ’Close’ and you should be good to use the programmer to download code to the FPGA on the DE10-Lite board.
©2012-2018, P. Mathys. Last revised: 10-19-18, PM.
In digital electronicsthree-state, tri-state, or 3-statelogic allows an output or input pin/pad to assume a high impedance state, effectively removing the output from the circuit, in addition to the 0 and 1 logic levels.Digital Logic Division
This allows multiple circuits to share the same output line or lines (such as a bus which cannot listen to more than one device at a time).
Three-state outputs are implemented in many registers, bus drivers, and flip-flops in the 7400 and 4000 series as well as in other types, but also internally in many integrated circuits. Other typical uses are internal and external buses in microprocessors, computer memory, and peripherals. Many devices are controlled by an active-low input called OE (Output Enable) which dictates whether the outputs should be held in a high-impedance state or drive their respective loads (to either 0- or 1-level).
The term tri-state[1][citation needed]should not be confused with ternary logic (3-value logic).INPUTOUTPUTABC00Z (high impedance)1Z (high impedance)01011Driver Logic AppA tristate buffer can be thought of as a switch. If B is on, the switch is closed. If B is off, the switch is open.Uses[edit]
The basic concept of the third state, high impedance (Hi-Z), is to effectively remove the device’s influence from the rest of the circuit. If more than one device is electrically connected to another device, putting an output into the Hi-Z state is often used to prevent short circuits, or one device driving high (logical 1) against another device driving low (logical 0).
Three-state buffers can also be used to implement efficient multiplexers, especially those with large numbers of inputs.[2]
Three-state buffers are essential to the operation of a shared electronic bus.
Three-state logic can reduce the number of wires needed to drive a set of LEDs (tri-state multiplexing or Charlieplexing).Output enable vs. chip select[edit]
Many memory devices designed to connect to a bus (such as RAM and ROM chips) have both CS (chip select) and OE (output enable) pins, which superficially appear to do the same thing. If CS is not asserted, the outputs are high impedance.
The difference lies in the time needed to output the signal. When chip select is deasserted, the chip does not operate internally, and there will be a significant delay between providing an address and receiving the data. (An advantage of course, is that the chip consumes minimal power in this case.)
When chip select is asserted, the chip internally performs the access, and only the final output drivers are disabled by deasserting output enable. This can be done while the bus is in use for other purposes, and when output enable is finally asserted, the data will appear with minimal delay. A ROM or static RAM chip with an output enable line will typically list two access times: one from chip select asserted and address valid, and a second, shorter time beginning when output enable is asserted.Use of pull-ups and pull-downs[edit]
When outputs are tri-stated (in the Hi-Z state) their influence on the rest of the circuit is removed, and the circuit node will be ’floating’ if no other circuit element determines its state. Circuit designers will often use pull-up or pull-down resistors (usually within the range of 1–100 kΩ) to influence the circuit when the output is tri-stated.
The PCI local bus provides pull-up resistors, but they would require several clock cycles to pull a signal high given the bus’s large distributed capacitance. To enable high-speed operation, the protocol requires that every device connecting to the bus drive the important control signals high for at least one clock cycle before going to the Hi-Z state. This way, the pull-up resistors are only responsible for maintaining the bus signals in the face of leakage current.
Intel refers to this convention as ’sustained tri-state’, and also uses it in the Low Pin Count bus.Alternatives to a three-state bus[edit]
The open collector input/output is a popular alternative to three-state logic. For example, the I²C bus protocol (a bi-directional communication bus protocol often used between devices) specifies the use of pull-up resistors on the two communication lines. When devices are inactive, they ’release’ the communication lines and tri-state their outputs, thus removing their influence on the circuit. When all the devices on the bus have ’released’ the communication lines, the only influence on the circuit is the pull-up resistors, which pull the lines high. When a device wants to communicate, it comes out of the Hi-Z state and drives the line low. Devices communicating using this protocol either let the line float high, or drive it low – thus preventing any bus contention situation where one device drives a line high and another low.
Early microcontrollers often have some pins that can only act as an input, other pins that can only act as a push–pull output, and a few pins that can only act as an open collector input/output. A typical modern microcontroller has many three-state general-purpose input/output pins that can be programmed to act as any of those kinds of pins.Logic Driver Pro
A three-state bus is typically used between chips on a single printed circuit board (PCB), or sometimes between PCBs plugged into a common backplane.Digital Logic Diagram Maker
Usage of three-state logic is not recommended for on-chip connections but rather for inter-chip connections.[3]
Three-state buffers used to enable multiple devices to communicate on a data bus can be functionally replaced by a multiplexer.[4] That will help select output from a range of devices and write one to the bus.See also[edit]Notes and references[edit]
*^Tri-state is a registered trademark of National Semiconductor but is often used to describe devices made by any manufacturer.
*^Hill, Winfield; Horowitz, Paul (1989). The Art of Electronics. Cambridge University Press. pp. 495–497. ISBN0-521-37095-7.
*^경종민, On-Chip Buses/Networks for SoC ’On-Chip Buses [have] No use of tri-state signals [because] Tri-state bus is difficult for static timing analysis’
*^’Tri State Buffer’.External links[edit]
*Special-output Gates on All About CircuitsRetrieved from ’https://en.wikipedia.org/w/index.php?title=Three-state_logic&oldid=986590486’
Download here: http://gg.gg/v2eec
https://diarynote-jp.indered.space
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