The following function is related to PWM mode for PIC:Select one:a. Detection of an exact point at which the change occurs in an input edgeb. Variations in the status of an output pinc. To generate rectangular waveform with programmable duty cycle with an user assigned frequencyd. Generation of an interrupt
Question
The following function is related to PWM mode for PIC:Select one:a. Detection of an exact point at which the change occurs in an input edgeb. Variations in the status of an output pinc. To generate rectangular waveform with programmable duty cycle with an user assigned frequencyd. Generation of an interrupt
Solution
The correct answer is c. To generate rectangular waveform with programmable duty cycle with an user assigned frequency. This is because Pulse Width Modulation (PWM) is a technique used to generate analog signals with digital means. It allows us to control the power delivered to electrical devices, using the microcontroller's digital outputs. In PWM mode, the output pin's status (high or low) is changed based on a programmable duty cycle. The frequency of this change can be assigned by the user.
Similar Questions
The main function or role performed by the CCP module of PIC in compare mode in addition to timer 1 isSelect one:a. To vary the duty cycle of the rectified outputb. To vary the status of synchronized levelsc. To vary the oscillator frequencies in order to receive larger periodsd. To vary the pin status in accordance to the precisely controlled time
The main function or role performed by the CCP module of PIC in compare mode in addition to timer 1 is
What are the interrupt sources of PIC microcontroller
You have configured the PIC as follows:RC2 is configured as an outputTMR1 to run with a 1:1 prescaler and calls myTMR1ISR whenever TMR1 rolls over.What is the frequency and duty cycle of the waveform formed on RC2?void myTMR1ISR(void) { if (PORTCbits.RC2 == 1) { LATCbits.LATC2 = 0; TMR1_WriteTimer(0x10000 - 8000); } else { LATCbits.LATC2 = 1; TMR1_WriteTimer(0x10000 - 24000); } PIR1bits.TMR1IF = 0;}Group of answer choices500 Hz at 75% duty cycle2000 Hz at 66% duty cycleNone of the above500 Hz at 25% duty cycle2000 Hz at 33% duty cycle
You have configured the PIC as follows:RC2 is configured as an outputTMR1 to run with a 1:1 prescaler and calls myTMR1ISR whenever TMR1 rolls over.What is the frequency and duty cycle of the waveform formed on RC2?void myTMR1ISR(void) { if (PORTCbits.RC2 == 1) { LATCbits.LATC2 = 0; TMR1_WriteTimer(0x10000 - 8000); } else { LATCbits.LATC2 = 1; TMR1_WriteTimer(0x10000 - 24000); } PIR1bits.TMR1IF = 0;}Group of answer choicesNone of the above500 Hz at 25% duty cycle2000 Hz at 66% duty cycle2000 Hz at 33% duty cycle500 Hz at 75% duty cycle
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