albatross / Mbed 2 deprecated mbed_HC-SR04

20160813 超音波センサー　サンプル

Dependencies:   mbed

main.cpp@0:c7074b60eeab, 2016-08-13 (annotated)

Committer:
takahashikento
Date:
Sat Aug 13 09:33:07 2016 +0000
Revision:
0:c7074b60eeab
0813 ???????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
takahashikento 0:c7074b60eeab 1 /* ヘッダーファイル読み込み */
takahashikento 0:c7074b60eeab 2 #include "mbed.h"
takahashikento 0:c7074b60eeab 3
takahashikento 0:c7074b60eeab 4 /* ピンの機能設定 */
takahashikento 0:c7074b60eeab 5 Serial PC (USBTX,USBRX); //USB :シリアル通信
takahashikento 0:c7074b60eeab 6 DigitalOut USSTriger (p11); //P11 :超音波センサ トリガ出力
takahashikento 0:c7074b60eeab 7 Timer ActiveTime;
takahashikento 0:c7074b60eeab 8
takahashikento 0:c7074b60eeab 9 /* 割り込み処理宣言 */
takahashikento 0:c7074b60eeab 10 Ticker TrigerTiming; //Trigerピン :インターバルタイマ
takahashikento 0:c7074b60eeab 11 InterruptIn USSEcho (p12); //p12 :超音波センサ エコー入力
takahashikento 0:c7074b60eeab 12
takahashikento 0:c7074b60eeab 13 /* 関数宣言 */
takahashikento 0:c7074b60eeab 14 void init(void);
takahashikento 0:c7074b60eeab 15 void Output_Monitor(unsigned short Value);
takahashikento 0:c7074b60eeab 16
takahashikento 0:c7074b60eeab 17
takahashikento 0:c7074b60eeab 18 /* グローバル変数宣言*/
takahashikento 0:c7074b60eeab 19 unsigned short USSDistance; //USSDistance:超音波センサ測定距離
takahashikento 0:c7074b60eeab 20
takahashikento 0:c7074b60eeab 21 /* main関数開始*/
takahashikento 0:c7074b60eeab 22 int main() {
takahashikento 0:c7074b60eeab 23 char val;
takahashikento 0:c7074b60eeab 24 init();
takahashikento 0:c7074b60eeab 25 while(1) {
takahashikento 0:c7074b60eeab 26 if( PC.readable() ){
takahashikento 0:c7074b60eeab 27 Output_Monitor( USSDistance );
takahashikento 0:c7074b60eeab 28 val = PC.getc();
takahashikento 0:c7074b60eeab 29 }
takahashikento 0:c7074b60eeab 30 }
takahashikento 0:c7074b60eeab 31 }
takahashikento 0:c7074b60eeab 32
takahashikento 0:c7074b60eeab 33 /***************************************************
takahashikento 0:c7074b60eeab 34 * @brief 60ms毎の割り込みでUSSTrigerに10usのON出力
takahashikento 0:c7074b60eeab 35 * @param なし
takahashikento 0:c7074b60eeab 36 * @return なし
takahashikento 0:c7074b60eeab 37 * @date 2014/12/16 新規作成
takahashikento 0:c7074b60eeab 38 **************************************************/
takahashikento 0:c7074b60eeab 39 void Triger (){
takahashikento 0:c7074b60eeab 40 USSTriger = 1;
takahashikento 0:c7074b60eeab 41 wait_us(10);
takahashikento 0:c7074b60eeab 42 USSTriger = 0;
takahashikento 0:c7074b60eeab 43 }
takahashikento 0:c7074b60eeab 44
takahashikento 0:c7074b60eeab 45 /***************************************************
takahashikento 0:c7074b60eeab 46 * @brief USSEcho立ち上がりでの割り込み
takahashikento 0:c7074b60eeab 47 * @brief Hiの場合ActiveTimeタイマスタート
takahashikento 0:c7074b60eeab 48 * @param なし
takahashikento 0:c7074b60eeab 49 * @return なし
takahashikento 0:c7074b60eeab 50 * @date 2014/12/16 新規作成
takahashikento 0:c7074b60eeab 51 **************************************************/
takahashikento 0:c7074b60eeab 52 void RiseEcho(){
takahashikento 0:c7074b60eeab 53 ActiveTime.start();
takahashikento 0:c7074b60eeab 54 }
takahashikento 0:c7074b60eeab 55
takahashikento 0:c7074b60eeab 56
takahashikento 0:c7074b60eeab 57 /***************************************************
takahashikento 0:c7074b60eeab 58 * @brief USSEcho立ち下がりでの割り込み
takahashikento 0:c7074b60eeab 59 * @brief Lowの場合ActiveTimeタイマ停止+値読み取り
takahashikento 0:c7074b60eeab 60 * @param なし
takahashikento 0:c7074b60eeab 61 * @return なし
takahashikento 0:c7074b60eeab 62 * @date 2014/12/16 新規作成
takahashikento 0:c7074b60eeab 63 **************************************************/
takahashikento 0:c7074b60eeab 64 void FallEcho(){
takahashikento 0:c7074b60eeab 65 unsigned long ActiveWidth;
takahashikento 0:c7074b60eeab 66 ActiveTime.stop();
takahashikento 0:c7074b60eeab 67 ActiveWidth = ActiveTime.read();
takahashikento 0:c7074b60eeab 68 USSDistance = ActiveWidth * 0.0170;
takahashikento 0:c7074b60eeab 69 ActiveTime.reset();
takahashikento 0:c7074b60eeab 70 }
takahashikento 0:c7074b60eeab 71
takahashikento 0:c7074b60eeab 72 /***************************************************
takahashikento 0:c7074b60eeab 73 * @brief 各種機能のプロパティ設定
takahashikento 0:c7074b60eeab 74 * @param なし
takahashikento 0:c7074b60eeab 75 * @return なし
takahashikento 0:c7074b60eeab 76 * @date 2014/12/13 新規作成
takahashikento 0:c7074b60eeab 77 **************************************************/
takahashikento 0:c7074b60eeab 78 void init(void){
takahashikento 0:c7074b60eeab 79 TrigerTiming.attach( Triger , 0.060 ); //USSTriger周期 60ms
takahashikento 0:c7074b60eeab 80 USSEcho.rise( RiseEcho ); //USSEcho立ち上がり時割り込み
takahashikento 0:c7074b60eeab 81 USSEcho.fall( FallEcho ); //USSEcho立ち下がり時割り込み
takahashikento 0:c7074b60eeab 82 }
takahashikento 0:c7074b60eeab 83
takahashikento 0:c7074b60eeab 84 /***************************************************
takahashikento 0:c7074b60eeab 85 * @brief Parameterの値をPC画面に出力
takahashikento 0:c7074b60eeab 86 * @param Value : 画面に出力する値
takahashikento 0:c7074b60eeab 87 * @return なし
takahashikento 0:c7074b60eeab 88 * @date 2014/12/14 新規作成
takahashikento 0:c7074b60eeab 89 **************************************************/
takahashikento 0:c7074b60eeab 90 void Output_Monitor(unsigned long Value){
takahashikento 0:c7074b60eeab 91 PC.printf("%d[cm]\r\n",Value);
takahashikento 0:c7074b60eeab 92 }