Capture/Compare/PWM(CCP) Module in PIC18FXXX Microcontroller

Select a PIC microcontroller by balancing speed, RAM and I/O, cost, and tool availability, while evaluating features like I2C and watchdog.

Explore the PIC18FXXX microcontroller features, including on-chip flash memory with erase-before-write, 16-bit instruction set, data RAM, ADC channel, and the CCP capture/compare/PWM module.

Master input/output handling and the use of special function registers on the PIC18FXXX microcontroller, including port pins, data registers, and alternate functions such as I2C and USART.

Learn how pic18f timers generate time delays or count external events, using internal or external clocks, prescalers, and overflow interrupts, with timer0 as ccp base and timer2 period registers.

Explore the CCP (capture/compare/pwm) module in PIC18F microcontrollers, including capture, compare, and enhanced CCP/PWM features across multiple modules and timers.

Shows the timer2 block diagram for the PIC18FXXX, including the PR register, zero-to-PR counting, the interrupt flag, and the lack of external clock with prescaler and postscaler options.

Explain timer2 sfrs on pic18fxxx microcontrollers, covering prescaler post scaling, timer on control, overflow flags, and interrupt priority using ip bits with vector 0x08 or 0x18.

Explain timer2 programming in the PIC18FXXX: configure tmr2 and pr2 with no external clock source, count from zero to pr2, and generate an interrupt on match for timing.

Learn how to use PWM mode with the PIC18FXXX CCP module to set variable duty cycles, calculate from period, and compare standard versus enhanced CCP for easier PWM control.

Describe the ccp x con register and its related registers, forming a 16-bit capture or compare unit, and explain pwm duty cycles at zero, twenty-five, fifty, and seventy-five percent.

Learn pwm configuration in the PIC18FXXX CCP module by calculating the pwm period from the oscillator and timer registers, applying prescaling, and deriving the duty cycle using CCPR and PR registers.

Compute PR2 from the oscillator frequency and target pwm frequency, choose a prescaler (1, 4, 16) to keep PR2 in 0–255, then set CCPR1L and DC1B1:B0 for 50% duty cycle.

Configure the CCP module for PWM mode, set period with the PR register in the 0-250 range, and set the duty cycle via the duty registers, then start the timer.

Configure the CCP PWM module on a PIC18FXXX to generate 2.5 kHz at 75% duty by setting PR2 to 249 and loading CCPR1L; enable output and start the timer.

Configure the ccp pwm on a pic18fxxx microcontroller to generate a 1 khz pwm with a 10 percent duty cycle using a 10 mhz oscillator and prescaler 16, pr 155.

Learn how to interface a DC motor with PWM generation using the CCP module in PIC18FXXX microcontrollers, controlling motor speed via duty cycle and pulse width.