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 count =0;
    uint8_t check =0;
    if(ctrl->parity_enable == 0)return data;
    else if(ctrl->parity_enable == 1){
        for(uint8_t i = 0; i < 7; i++){
            check = (data >> i) & 0x01;
            if(check == 1) count++;
        }
        if(count%2 == 0){
            if(ctrl->parity_type == 1){
                data |= (0x01 << 7);
                return data;
            }
            else if(ctrl->parity_type == 0){
                return data;
            }
        }
        else if(count%2 != 0){
            if(ctrl->parity_type == 1){
                return data;
            }
            else if(ctrl->parity_type == 0){
                data |= (0x01 << 7);
                return data;
            }
        }
    }
    return 0;
}

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;
}