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HP is a company that makes and market particular hardware / software for speciallist application. An example is the 12C calculator which is capable of using a GPIB standard chip to send a signal through a RS485 cable to a computer
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What does i2c stand for in the terms of power?
In terms of power I2C stands for an "Inter-Integrated Circuit". An I2C is used to connect slow speed computer components to the motherboard or other electronic devices.
Is I2C synchronous communication?
Yes. It is operating in synchronous with the clock. Two wire communication. SDA, SCL and GND pins.
What does open collector output mean?
Open collector output is normally used in logic circuits and can be viewed as a common emitter configuration for a BJT transistor and normally of type NPN. A typical common emitter configuration requires the emitter to be connected to the ground and a resistor Rc from Vcc to the collector. When the transistor becomes forward biased, the collector will pulled the voltage across the resistor down, from approximately Vcc down to almost 0V, normally in the order of 0.1V at the collector. We can see that the output at the collector will swing between Vcc and ground. In open collector outputs the collector resistor Rc and Vcc have been left out. This enables the engineer to use any voltage and any pull-up resistor that will meet the specifications of the output transistor. Normally it is acceptable in logic circuits that multiple inputs may be connected to one output, but not multiple outputs to one input due to the nature of the active outputs. With open collectors however multiple outputs may be connected to one input without damaging the device. Low state will result in a lower impedance than a high state since the high state is obtained by current flowing from Vcc through the pull-up resistor Rc. Open collector can be used to convert 5V logic to 8V or 12V logic or down to 3.3V since the logic high will be determined by the external supply to the pull up resistor. Open collector also prevents component failure during output short-circuit or over-current. If an open collector is short circuited to the ground, it will cause no harm to the device since all the current will be supplied via the Rc resistor. Short circuit to a +supply rail can however damage the device. Open collector is not used that commonly anymore but many variations of the same concept can be found in modern electronics. For example: micro processor devices that employ a I2C (Inter-Integrated Circuit) communications interface make use of a open-drain lines. It appears to work very much in the same fashion with pull-up resistors and all. Open drain is associated with MOSFET transistors instead of BJT's. In this example an I2C interface will fail if pull-up resistors are not used. Like open collector, open drain lines are also passive and does not provide any active high output of its own. The High output is supplied by Vcc via the Rc or Rp pull-up resistors. The open collector or open drain will pull the pull-up resistor voltage down to the ground to create a low impendence, low logic state.
What is the advantages of digital analog converter?
The advantage of Digital to analog convertersA digital to analog converter has drawbacks, but it has advantages of allowing signals to be controlled and processed to the best of speed and precision with the use of a micro processor. One can generate a perfect sine or triangular wave with a microprocessor and convert it into a real analog wave. One can process audio with a CPU or DSP and convert it back to audio. Once you have audio inside a processor the sky is the limit to what you can do with it and with custom firmware.Then the use is also obvious for precision digital instrumentation such as reading a load cell, thermo-couple or any sensor, converting it into an industry standard 4-20mA , 0-20mA or 0-5V or 0-10V output for PLCs or other instruments to interface with.Digital to analog converters may offer an economical and compact way to have precision signals. For a 24bit resolution, an 16.7million divisions of it's full scale deflection can be expected and perform thousands of conversions per second.The drawbacks are that they don't always produce perfectly smooth outputs, which may be subjected to some quantisation noise and the use of external filters may be required in some cases.Very nice technologies are available these days that allow SPI, I2C serial interfacing with high speed, high resolution and compact SMD chipsets at economical prices.The thing to note is that a digital to analog converter is rather useless without a micro processor to control and feed it with data and commonly they are build into DSP (digital signal processors) already.
What is the difference between CAN and I2C?
We can use I2C only for small distance communication not more than 1 meter, but CAN bus can be used for more than this distance that's why in todays world CAN bus is most preferred in Automotive Industry.
What is the differences between i2c and can bus?
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What is the difference between i2c and spi?
Major Difference Between SPI and I2C is: SPI is full Duplex (SPI can be full/half duplex, depending on the hardware, 3 or 4 wire) and I2C is half duplex communication....we cannt send and receive data at a time in I2c..but it possible in SPI ....SPI much faster Than I2C....... Main topic to discuss the difference is 1) speed is difference in case of i2c is 100/400kbps in 7 bit mode max 400kbps (But High speed I2C communication protocols allow speeds upto 3.4Mbps!!) in case of spi speed is upto 1mbps (the higher speed of SPI is due to fact that unlike I2C, SPI interfaces to a slave device using a sperate pin called the slave select + no concept of acknowledgements which means increased Band width..) 2)Connection wise: i2c require less pin then spi (SPI 3wire: 3 IOs, SPI 4 wire: 4 IOs, I2C: 2 IOs) as spi require slave select for individual device... 3)it is better to use i2c in case of if u want to connect more device to connect. (slave addressing advantageous over SPI slave select individual pins for individual slaves) 4)bus arbitration is possible in case of i2c... not in case of spi... (SPI does not require it, since only 1 slave is controlled by the master at any given point) 6)noise sensitivity of i2c is high... there is chance to corrupt the r/w bit... then whole data is corrputed... but in case of spi.. chance is very less as whole word is trasmitted... However, I must say that I2C is more reliable, since the protocol supports slave feedback machanism (ACK) to detect whether was received correctly or corrupt. 8) it is easy to implement the spi...while i2c is little bit complex... (over heads) Formatted Answer @: http://www.bubblews.com/account/65122-kapilddit
What is the difference between i2c and rs232?
I2C (Inter-Integrated Circuit) is a serial communication protocol that uses two wire lines for communication, allowing multiple devices to be connected in a network. RS232 (Recommended Standard 232) is a serial communication standard that uses a single wire for data transfer and is commonly used for connecting devices like modems, printers, and GPS receivers. Additionally, RS232 uses voltage levels for signaling while I2C uses open-drain signals.
What does i2c stand for in the terms of power?
In terms of power I2C stands for an "Inter-Integrated Circuit". An I2C is used to connect slow speed computer components to the motherboard or other electronic devices.
What is the difference between SPI and I2C microcontroller communication interfaces?
Check these articles:http://www.ucpros.com/work%20samples/Microcontroller%20Communication%20Interfaces%201.htmhttp://www.ucpros.com/work%20samples/Microcontroller%20Communication%20Interfaces%202.htm
What are the 2 roles of nodes in I2C communication?
Two roles of nodes in I2C communication are: master and slave.Master node - node that generates the clock and initiates communication with slavesSlave node - node that receives the clock and responds when addressed by the master
Is I2C synchronous communication?
Yes. It is operating in synchronous with the clock. Two wire communication. SDA, SCL and GND pins.
What are the benefits of salting?
nc2iuncr80c fdc nf dic i2c fd icj2 jic 1jic j c3 c1 3j cv3fvc 3cvn3f vcij rcv j2
What are the benefits of eating salt?
nc2iuncr80c fdc nf dic i2c fd icj2 jic 1jic j c3 c1 3j cv3fvc 3cvn3f vcij rcv j2
In addition to RS-232 two additional ways to transfer data serially SPI and I2C what is it?
in addition to the 2 you mentioned there there are numerous other ways to transfer data serially, but the main I think would be USB.
What is difference between 8051 and 8951?
umm 1? lol No, seriously, as explained on www.8052.com, the 8052 has twice the RAM of the 8051 (that is 256 Bytes), an additional 16-bit Timer (Timer 2) and more Special Function Registers (SFR) as required for the additional features. The most essential difference is that Timer2 can be used as a Baud rate generator for serial communication.
