Question

How to divide the high and low byte from a 16bit datatype into two variable in C

Answer 1

#include <stdio.h>
 
typedef union {
    unsigned short u16; // uint16_t	0 .. 65,535
    unsigned char u8[2];
} U16_U8;


 
int main(void) {
    U16_U8 val;

    val.u16 = 13882; // 0011 0110 0011 1010 
                     // 0011 0110 = 54 
                               // 0011 1010 = 58

    unsigned char a = val.u8[0];
    unsigned char b = val.u8[1];
     
    printf("%d\n%d", a, b);
     
    return 0;
}
 
 
 
/*
run:

58
54
 
*/

 

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