In Simulink, which value must you give a GPIO pin to drive it high?Question 3Select one:a.3.3Vb.0 (Active low)c.1d.3.3

To drive a GPIO pin high in Simulink, you typically apply a positive voltage. In many cases, this voltage can be either 3.3V or a logical high level represented by a binary 1.

1. Understanding GPIO pins: GPIO (General Purpose Input/Output) pins can be configured as either input or output. When configured as an output, setting the pin high usually means applying a voltage level that is recognized as logical high.

2. Voltage Levels:

   • The common high voltage level for many microcontrollers and digital systems is 3.3V.
   • A logical high can also refer to the binary level represented by '1'.

3. Options Analysis:

   • a. 3.3V: This is a common voltage level for driving a GPIO pin high.
   • b. 0 (Active low): This indicates a low state, not high.
   • c. 1: This can be interpreted as a logical high in binary, often associated with positive voltage.
   • d. 3.3: This might be a typographical error for option 'a', but typically, clear voltage values are stated with their units.

The best answer would be either option a or c since both represent a state that can effectively drive the GPIO pin high. However, given the context, option a. 3.3V is the more precise choice.

Final Answer

a. 3.3V