What is the use of open drain on a GPIO output pin?

Solutions

Expert Solution

In open drain mode, pin can not output excessive level (logical 1) on the line. It can both output low level (logical zero) or be in excessive-impedance state (logically disconnected). In high-impedance, pin does now not have an effect on the sign stage on the road. A pull-up resistor pulls the line to excessive voltage degree while all outputs are in high-impedance. The Open Drain Mode can be enabled/disabled on each output pin individually. To activate this feature, use the DlnGpioPinOpendrainEnable() function. To disable it, use the DlnGpioPinOpendrainDisable() function. If a pin is not assigned to the GPIO module, your settings are saved in the internal memory and will be applied when you assign the pin to the GPIO module. By default, the Open Drain Mode is disabled on all pins.

GPIO Interface functions to control and monitor the Open Drain Mode:

1. DlnGpioPinOpendrainEnable() - Enables the Open Drain mode on a pin.

2. DlnGpioPinOpendrainDisable() - Disables the Open Drain mode on a pin.

3. DlnGpioPinOpendrainIsEnabled() - Determines whether the Open Drain mode in enabled on a pin.

Manojponduru answered 11 months ago

Next > < Previous

Related Solutions

What are the largest and smallest turbulent length scales in an unstratified open drain of depth...

What are the largest and smallest turbulent length scales in an unstratified open drain of depth 1 m that is flowing at velocity U=10 cm s-1 ? Assume q=0.1U. Is the flow turbulent?

1. Explain on the basic operation of the n-channel JFET. Draw the drain characteristics or output...

1. Explain on the basic operation of the n-channel JFET. Draw the drain characteristics or output characteristics of the mentioned JFET type and denote the important parameters on the graph 2. Explain why the JFET is called a unipolar device. Your explanation must be based on the n-channel or p-channel device which is biased to operate as an amplifier 3. A JFET amplifier has a load resistance, RL= 500 kΩ. Find the ac drain resistance, rd if the amplification factor,...

How to draw the plan of drain alignment and mark the drain area, government drain reserved...

How to draw the plan of drain alignment and mark the drain area, government drain reserved areas, the reclaimed laind, roadways, etc?

Define clearing drain and currency drain. What effect do these two items have on the multiple...

Define clearing drain and currency drain. What effect do these two items have on the multiple expansion of deposits for(i) a particular bank and (ii) the banking system as a whole?

Input pin(s): inputw [1], sysclock [1] Output pin(s): outputq [1] Design a 3-bit parity generator using...

Input pin(s): inputw [1], sysclock [1] Output pin(s): outputq [1] Design a 3-bit parity generator using a minimal state table for a Moore model FSM. For every three bits that are observed on inputw during three consecutive clock cycles, the FSM generates the parity bit outputq = 1 if the number of 1s received in the sequence so far is odd. Must use a maximum of 3 flip flops.

What is the basis for “pin” and “thrum” flowers in SI plants? You may use a carefully...

What is the basis for “pin” and “thrum” flowers in SI plants? You may use a carefully labeled diagram with your answer.?

334) An Arduino analog input voltage is 4.320 volts. The Arduino PWM output pin drives a...

334) An Arduino analog input voltage is 4.320 volts. The Arduino PWM output pin drives a low-pass filter, which converts the PWM signal back to an average-DC voltage. Arduino specifications include: I/O voltage ranges of 0 to 5VDC; 10-bit A/D; and 8-bit D/A PWM output. The analog voltage DC input results in an analog output DC volage at the low-pass filter. Determine (Vout - Vin). Arduino functions include: analogRead(), map(), and analogWrite(). The analogRead() and map() use integer I/O.

why do Engineers use PIN connection support during calculations but does not use it in actual....

why do Engineers use PIN connection support during calculations but does not use it in actual. What is the effect of this?

PIN IMAGE Once the content surrounding a pin is optimized, it’s key that the quality of...

PIN IMAGE Once the content surrounding a pin is optimized, it’s key that the quality of the image itself is examined. It would seem obvious, but still bears mentioning, that pins that look good get more attention than those that don’t. What constitutes a good-looking pin? Several criteria must be met: • The image must be high-quality/high-resolution. • It should be clear and present the desired message in a simple and straightforward manner.21 Also, it’s important to note that lighter...

The currency drain ratio is 0.2 and the desired reserve ratio is 0.5. What is the...

The currency drain ratio is 0.2 and the desired reserve ratio is 0.5. What is the money multiplier? The money multiplier is __.

Subjects