76. Construct UART Data Frame with Parity Bit

#include <stdio.h>
#include <stdint.h>

typedef struct {
    uint8_t parity_enable : 1;
    uint8_t parity_type   : 1;
    uint8_t reserved      : 6;
} UART_Control;

uint8_t create_uart_frame(uint8_t data, UART_Control *ctrl) {
    // Your logic here
    uint8_t en_bit = ctrl -> parity_enable;
    uint8_t Frame=0;
    uint8_t parity_bit =0;
    uint8_t count = 0;

    if(en_bit ==0)
    {
        Frame &=    ~(1<<7) ;
        Frame |=    (data ) &0x7f;
        return Frame;
    }
    else
    {
        for (int i=0; i<8;i++)
        {
            count+= (((data >>i) & 0x01) ==1)?1:0;
        }
        if (ctrl -> parity_type==0) {parity_bit =(count %2 ==0)? 0:1;}
        if (ctrl -> parity_type==1) {parity_bit =(count %2 ==0)? 1:0;}
        
        Frame |= (parity_bit & 0x01) <<7;
        Frame |= (data & 0x7f);
        return Frame;
    }
    
}

int main() {
    uint8_t data;
    scanf("%hhu", &data);  // 7-bit input

    uint8_t parity_enable, parity_type;
    scanf("%hhu %hhu", &parity_enable, &parity_type);

    UART_Control ctrl;
    ctrl.parity_enable = parity_enable;
    ctrl.parity_type = parity_type;

    uint8_t frame = create_uart_frame(data, &ctrl);
    printf("frame = 0x%02X", frame);

    return 0;
}