How do I start ADC conversion in PIC18F4550?

A/D conversion and Read digital values

  1. Configure ADCON0 Register to select a channel that we require using CHS3: CHS0.
  2. Start A/D conversion by setting ADON bit and Go/done’ bit of ADCON0 Register.
  3. Wait for G0/done’ bit which is cleared when the conversion is completed.

What is the resolution of ADC used in PIC18F4550?

10 bits
ADC in PIC Microcontroller (PIC18F4550) The ADC in PIC18F4550 is a successive approximation ADC with a resolution of 10 bits. The resolution indicates how much the reference voltage can be divided. For a 10 bit resolution ADC, it is possible to divide up to 1024 (2^10) voltages.

How many bit ADC is there in ATmega8?

The ATmega8 features a 10-bit successive approximation ADC. ATmega8 has 7 channel ADC at PortC. The ADC has a separate analog supply voltage pin, AVCC. AVCC must not differ more than ± 0.3V from VCC..

How many ADC are in PIC16F877A?

PIC16F877A ADC pins PIC16F877A has an inbuilt 10 bit Successive Approximation ADC which is multiplexed among 8 input pins.

How many ADCS are there in PIC microcontroller?

ADC of PIC Microcontrollers have 5 inputs for 28 pin devices and 8 inputs for 40/44 pin devices. It is a 10-bit ADC, ie the conversion of analog signal results in corresponding 10-bit digital number.

What is ADC resolution?

Resolution. The ADC resolution is defined as the smallest incremental voltage that can be recognized and thus causes a change in the digital output. It is expressed as the number of bits output by the ADC. Therefore, an ADC which converts the analog signal to a 12-bit digital value has a resolution of 12 bits.

What is ADC in ATmega?

Introduction. ADC (Analog to Digital converter) is the most widely used device in embedded systems which is designed especially for data acquisition. In the AVR ATmega series normally 10-bit ADC is inbuilt in the controller.

How do you use ADC in PIC16F877A?

STEPS TO PERFORM ADC CONVERSION IN PIC16F877A Start the conversion by setting ADON/GO bit. Wait for A/D conversion to complete. As long as the GO_DONE bit HIGH, the conversion is not complete. GO=1; // Start ADC conversion while(GO_DONE==1); return((ADRESH<<8) + ADRESL);