Single bit oprations in avr microcontroller
Download as pptx, pdf0 likes290 views
The document explains bit manipulation in programming using macros like setbit and clearbit. It demonstrates how to set or clear a specific bit in a binary representation of an address using shift operations. Examples are provided along with the expected outcomes of these operations.
1 of 6
Download to read offline
More Related Content
Viewers also liked (18)
Similar to Single bit oprations in avr microcontroller (20)
Ad
More from Robo India (20)
Ad
Recently uploaded (20)
Single bit oprations in avr microcontroller
- 2. If you have forgotten AND – Multiply OR – ADD
- 3. #define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<<BIT)) • Understanding (1<<BIT) • 1 = 00000001 • BIT = any = 4(Ex) • 1<<4 = 00000001<<4 (1 is left shifted 4 times) • (1<<BIT) = 00010000
- 4. #define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<<BIT)) • ADDRESS = PORTX = 00100100 (suppose) • ADDRESS |= (1<<BIT)) ⇒ ADDRESS = ADDRESS | (1<<BIT) • ADDRESS | (1<<BIT) ⇒ 00100100 | 00010000 • Updated ADDRESS = 00110100 Click here to visit -ROBO INDIA
- 5. #define CLEARBIT(ADDRESS,BIT) (ADDRESS &=~ (1<<BIT)) • ADDRESS = PORTX = 00110100 (suppose) • ADDRESS &= ~(1<<BIT)) ⇒ ADDRESS = ADDRESS & INVERTED(1<<BIT) • ADDRESS & ~ (1<<BIT) ⇒ 00110100 & 11101111 • Updated ADDRESS = 00100100 Click here to visit -ROBO INDIA
- 6. To share your views and queries please write us- Website: http://roboindia.com Email- [email protected] Click here to visit -ROBO INDIA