What is CCP in PWM?
What is CCP in PWM?
Capture-Compare-Pulse-Width-Module (CCP) is a special module designs for modulation and waveform generation applications. This module basically works on three different modes (capture/compare and PWM odes). The PIC 16F877 chip contains two CCP ports (CCP1 and CCP2).
What is CCP in pic?
CCP MODULE:CCP stands for Capture, Compare and PWM. These are built in module in pic microcontroller. It is a special module in pic microcontroller designed for modulation and waveform generation applications. It is also used to generate specific time delay.
What does CCP stand in pic18f4520?
– CCP stands for Capture, Compare, and Pulse Width Modulation. – Each CCP module can be configured to perform capture, compare, or PWM function. – In capture operation, the CCP module copy the contents of a timer into a capture register on an signal edge.
What is role of CCP Xcon register?
CCPxCON – refers to CCP one or CCP two control register, supporting the mode selection and access to the two least significant bits.. CCPxL – refers to CCP one or CCP two is used to store low byte value in Capture or compare operation and as entry register in PWM mode.
What are the applications of CCP mode in compare mode?
CCP in Compare mode is used to generate a waveform of various duty cycles like PWM and also used to trigger an event when the pre-determined time expires. Also, it is used to generate specific time delay.
How many comparisons are done in PWM mode of PIC CCP module?
Each of the Capture/Compare/PWM (CCP) Modules contains a 16-bit register which can operate as a: 16-Bit Capture Register. 16-Bit Compare Register.
How many CCP modules are available in pic16f877?
PIC16F877A microcontroller has two independent CCP(Capture/Compare/PWM) modules, named as CCP1 and CCP2. Each CCP module has two 8-bit resistors(CCPxH,CCPxL) that can be use as: 16 bit Capture Register. 16 bit Compare Register.
Which of following is related to CCP module?
The CCP module is a peripheral which allows the user to time and control different events. Capture Mode, allows timing for the duration of an event. This circuit gives insight into the current state of a register which constantly changes its value. In this case, it is the timer TMR1 register.
Which timer is used for capture mode in CCP module?
To set the CCP module in Capture Mode we need to configure both the CCP and Timer Control registers. Timer 1 or Timer 3 can be chosen to source the CCP module. The timer selection is specified with the T3CCPx bits in the T3CON register. The CCP pin should also be configured as an input pin to read the event occurrence.
Which register can be used in Compare mode in CCP module?
CCPR1 Register The compare mode of the CCP module is selected using bits in the CCP1CON Register. Only Timer1 and Timer3 can be used for Compare mode in PIC18F4550.
What is compare capture and PWM mode CCP )?
The Capture/Compare/PWM module is a peripheral that allows the user to time and control different events, and to generate Pulse-Width Modulation (PWM) signals. The Compare mode allows the user to trigger an external event when a predetermined amount of time has expired.
Which timer is used for Compare mode in CCP module?
The Capture and Compare modes are configured with CCP1CON and CCP2CON registers. The occurrence of an event is notified by setting the respective CCPxIF flag bit. The Timer/Counter unit in Timer 1 or Timer 3 is used for its timing or counting functions and must also be configured properly.
How does the pic18f4520 PWM motor control work?
For a more in-depth introduction to PWM motor control click here . The PIC18F4520 is capable of outputing a PWM signal on two separate channels: CCP1 and CCP2 (shown below). The red pins have the capability of outputing PWM, while the grey are usually committed to communication or power.
How does the pic18f2525 / 2620 / 4620 family work?
Like previous PIC18 devices, the PIC18F2525/2620/ 4525/4620 family includes a feature that allows the device clock source to be switched from the main oscillator to an alternate, low-frequency clock source. PIC18F2525/2620/4525/4620 devices offer two alternate clock sources.
What kind of oscillator is used in pic18f4550?
PIC18F4550 internal oscillator is used and MCLR pin function is disabled. In Full-Bridge Output mode, four pins are used as outputs; however, only two outputs are active at a time. In the Forward mode, pin P1A is continuously active and pin P1D is modulated.
How to setup a PWM on a CCP1 chip?
Begin main body of program. Setup the CCP1 pin (PIN_C2 on the 18F4520 chip) to be a PWM output. Also set the timer to be used for PWM. Setup an infinite loop, using a while statement. Check whether button is pressed or not, and vary duty cycle of PWM accordingly.