Embedded C lo Data Types Explained in Telugu

 

✍️ Full Content:

Embedded C lo Data Types Explained in Telugu

📌 Introduction:

Embedded C lo programs rayataniki manam variables ni define cheyyali. A variables memory lo ela allocate avuthayi, ela behave chestayi ane di data types meeda depend avutundi.

🔹 1. What is a Data Type?

Data type ante:

• A variable store cheyyagalige value type ni define cheyyadam.

• For example: number, character, float (decimal) value.

🔹 2. Main Types of Data Types in Embedded C

Type	Use	Example
int	Whole numbers	10, 100
char	Single characters	'A', 'z'
float	Decimal numbers	3.14, 2.5
unsigned	Only positive values	0 to 255
long	Bigger integer values	10,000+

🔹 3. Memory Size (8051 Based)

Data Type	Size	Range (approx.)
char	1 byte	-128 to 127
int	2 bytes	-32,768 to 32,767
unsigned int	2 bytes	0 to 65,535
float	4 bytes	±3.4e38 (limited use)

🔹 4. Example Code:

#include <reg51.h>

void main() {
    int speed = 120;
    char status = 'A';
    unsigned int distance = 300;

    while(1) {
        // Use variables to control device
    }
}

📌 5. Embedded lo Eppudu float avoid cheyyali?

• Microcontrollers lo memory limited ga untundi

• float usage performance ni slow cheyyachu

• Try to use int or unsigned int whenever possible

✅ Conclusion:

Embedded C lo data types ni manam correct ga use chesthe:

• Program efficient ga run avutundi

• Memory save avutundi

• Errors avoid avuthayi

Next article lo “Embedded C lo Operators Explained in Telugu” cheddham!