LED Blink without delay PIC16F877A Timer0 module: The Timer0 module timer/counter has the following features: • 8-bit timer/counter • Readable and writable • 8-bit software programmable prescaler • Internal or external clock select • Interrupt on overflow from FFh to […]
PIC16F877A Timer0 module and interrupt with CCS C compiler Read More >>
Each of PIC16F877A microcontroller PORTB pins has an internal weak pull-up. A single control bit can turn on all the pull-ups. This is performed by clearing bit RBPU (OPTION_REG<7>). The weak pull-up is automatically turned off when the port pin
Enable PIC16F877A PORTB internal pull-ups with CCS C compiler Read More >>
This post shows an example of PIC16F877A PORTB interrupt on change (IOC). Four of the PORTB pins, RB7:RB4, have an interrupt-on-change (IOC) feature. Only pins configured as inputs can cause this interrupt to occur (i.e., any RB7:RB4 pin configured as
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The microcontroller PIC16F877A has one external hardware interrupt at pin RB0/INT. When an interrupt occurs, the microcontroller immediately executes the code attached with the interrupt, after finishing the interrupt code the microcontroller returns to the main code. This topic shows
PIC16F877A External interrupt example with CCS C compiler Read More >>
PIC16F877A buttons read This is PIC16F877A read inputs example. LEDs are going to be controlled using push buttons as shown in the circuit schematic below. PIC16F877A read inputs example circuit: Example circuit schematic is shown below. As shown in the
PIC16F877A read inputs example using CCS C compiler Read More >>
PIC16F877A is a 40-pin (PDIP type) microcontroller which has 5 ports: A, B, C, D and E. From the 40 pins we can use 33 pins as an I/O pins. This microcontroller has 3 timers which are: Timer0: 8-bit timer,
PIC16F877A LED blink example with CCS C compiler Read More >>
Each of the PORTB pins has a weak internal pull-up. A single control bit can turn on all the pull-ups. This is performed by clearing bit RBPU (OPTION<7>). The weak pull-up of a pin is automatically turned off when the
PIC16F84A Enable PORTB internal pull-ups with CCS C compiler Read More >>
PIC16F84A blink without delay (Timer0 interrupt) The microcontroller PIC16F84A has 1 timer which is Timer0, this timer has a resolution of 8 bits and an interrupt-on-overflow from FFh to 00h. This topic shows how to use Timer0 interrupt to blink
PIC16F84A Timer0 interrupt example with CCS C compiler Read More >>
PIC16F84A PORTB Interrupt on change This topic shows how to use PIC16F84A microcontroller PORTB change interrupt, this interrupt occurs when an input port changes its state. The pins responsible for this interrupt are RB4, RB5, RB6 and RB7. The compiler
PIC16F84A PORTB interrupt on change (IOC) example with CCS C Read More >>
PIC16F84A External hardware interrupt example The microcontroller PIC16F84A has a unique external interrupt at RB0 pin (hardware interrupt). When an interrupt occurred, the microcontroller immediately executes the code attached with the interrupt, after finishing the interrupt code the microcontroller returns
PIC16F84A external hardware interrupt example with CCS C Read More >>