不韋 呂 / Mbed 2 deprecated Examples_for_ALL_STM

いろいろなテクニック．Nucleo と DISCO-F746 用．

Dependencies:   Array_Matrix mbed

UnionExample.hpp

Committer:
MikamiUitOpen
Date:
2019-04-10
Revision:
1:bbb9f0c3e523
Parent:
0:bb939e0bc6e2

File content as of revision 1:bbb9f0c3e523:

//--------------------------------------------------------------
//  "union" のテスト
//--------------------------------------------------------------

#include "mbed.h"

void UnionExample()
{
    union Int16U8
    {
        int16_t v16;
        uint8_t uv8[2];
    };
    Int16U8 x1, x2;

    x1.uv8[0] = 1;      // 下位バイト
    x1.uv8[1] = 2;      // 上位バイト
    
    printf("\r\nx1.v16 = 0x%04X", x1.v16);
    printf("\r\nx1.uv8[0] = 0x%02X, x1.uv8[1] = 0x%02X\r\n", x1.uv8[0], x1.uv8[1]);
    
    x2.uv8[0] = 255;
    x2.uv8[1] = 255;   
    printf("\r\nx2.v16 = %d\r\n", x2.v16);
}