C - AVR - Simple PORTB, DDRB, PINB explanation - Stack Overflow
I am working on a school project and need to learn the basics of C with an AVR ATmega controller. I don't understand how everything is set up. For example, PORTB, PORTD, DDRB; DDRD, PINB, …
PORTB and INT external interrupts stucks the code
Dec 28, 2022 · Four of the PORTB pins, RB7:RB4, have an interrupt-on-change feature. Only pins configured as inputs can cause this interrupt to occur (i.e., any RB7:RB4 pin configured as an output …
Why bit shifting is written like this in C? - Stack Overflow
Oct 23, 2021 · PORTB = PORTB & ((0b11111011)); This means it will take the old value of PORTB and just write bit #2 of it to 0 while keeping the rest of the bits to their original values (whether they are 0 …
Issue with the delay and the toggle on PIC16F84A micro
May 20, 2024 · xorwf PORTB,F ; Show current 4-bit count on PORTB goto MainLoop ; ; Wait 4 milliseconds Wait4ms: movf T0_Sample,W subwf TMR0,W sublw T0_COUNTS_PER_TICK skpnc …
Explain this code regarding AVR port setup - Stack Overflow
Feb 19, 2013 · Note, that the PORTB register bits serve different purposes depending on the pin direction configured via the DDRB register. For output pins, it simply controls the pin state.
How to set a port as input or output with PIC? - Stack Overflow
Oct 12, 2016 · An individual port corresponds to all of its associated pins. For example, on the PIC16F57, you have pins RA0,RA1,RA2 and RA3. These pins correspond to PORTA bits 0, 1, 2 and …
Assembly movf & movwf - Stack Overflow
May 28, 2013 · This should move the value of PORTA to PORTB: movf PORTA, W movwf PORTB It's a bit unclear from your question whether you want to move the value as-is, or if you want to set bit 0 of …
c - Arduino port relocation (PORTD to PORTB) - Stack Overflow
Aug 6, 2017 · Arduino port relocation (PORTD to PORTB) Asked 8 years, 4 months ago Modified 8 years, 4 months ago Viewed 1k times
Solved 14. Find the contents of the port after each of the - Chegg
Science Advanced Physics Advanced Physics questions and answers 14. Find the contents of the port after each of the following operations: (a) PORTB=0x65&0x76; (c) PORTC=0x95^0xAA; (e) …
How to read a digital PIC port into a single variable?
Dec 22, 2019 · I have a practice exam question that asks me to read PORTB input logic levels into a single char variable called result. (On a PIC18F252). I had some ideas for this but I haven't got …