Noting that PR2 (the period register) is an 8-bit register and PR2 = [Fosc/(Fpwm x 4...

  

Transcribed Image Text:

Noting that PR2 (the period register) is an 8-bit register and PR2 = [Fosc/(Fpwm x 4 x N)] -1, where Fosc is the frequency of oscillation of the microcontroller, Fpwm is the desired pulse width modulation frequency and N (= 1 or 4 or 16) is the prescale factor of the timer. Assuming Fosc = 10 MHz, Fpwm 1 kHz and that we want a 75% duty cycle, find the following: a) A suitable value for N b) The value of register PR2 (round to the nearest whole number) c) The value of register CCPRIL d) The two bit value for DC1B2:DC1B1 e) = (4 points) (4 points) (4 points) (3 points) (10 points) Write an XC8 program to generate the PWM signal on the CCP1 pin of the PIC18F452 microcontroller. Noting that PR2 (the period register) is an 8-bit register and PR2 = [Fosc/(Fpwm x 4 x N)] -1, where Fosc is the frequency of oscillation of the microcontroller, Fpwm is the desired pulse width modulation frequency and N (= 1 or 4 or 16) is the prescale factor of the timer. Assuming Fosc = 10 MHz, Fpwm 1 kHz and that we want a 75% duty cycle, find the following: a) A suitable value for N b) The value of register PR2 (round to the nearest whole number) c) The value of register CCPRIL d) The two bit value for DC1B2:DC1B1 e) = (4 points) (4 points) (4 points) (3 points) (10 points) Write an XC8 program to generate the PWM signal on the CCP1 pin of the PIC18F452 microcontroller.

Answer rating: 100% (QA)

a To find a suitable value for N we can use the formula N Fosc Fpwm x 4 x PR2 1 Given Fosc 10 MHz Fpwm 1 kHz Lets assume N 1 and calculate the corresp... View the full answer