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トップに関する質問C#　シリアル通信の受信イベントが起きない

編集履歴

質問編集履歴

2

コード全文を記載

2020/09/24 04:55

投稿

tme_ike
tme_ike

スコア1

test CHANGED
File without changes
test CHANGED
@@ -12,11 +12,61 @@
12
12
 
13
13
  ### 該当のソースコード
14
14
 
15
- 設定と受信イベント部
15
+ Form1.cs
16
16
 
17
17
  ```C#
18
18
 
19
-
19
+ using System;
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+
21
+ using System.Collections.Generic;
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+
23
+ using System.ComponentModel;
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+
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+ using System.Data;
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+
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+ using System.Drawing;
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+
29
+ using System.IO.Ports;
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+
31
+ using System.Linq;
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+
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+ using System.Text;
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+
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+ using System.Threading.Tasks;
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+
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+ using System.Windows.Forms;
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+
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+
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+
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+ namespace _232CTest
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+
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+ {
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+
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+ public partial class Form1 : Form
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+
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+ {
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+
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+ string[] ports;
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+
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+ string DELIMITER = "\r\n";
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+
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+ public Form1()
54
+
55
+ {
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+
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+ InitializeComponent();
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+
59
+ }
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+
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+
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+
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+ private void Form1_Load(object sender, EventArgs e)
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+
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+ {
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+
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+ ports = SerialPort.GetPortNames();
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+
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+ serialPort1.PortName = "COM4";
20
70
 
21
71
  serialPort1.BaudRate = 9600;
22
72
 
@@ -34,7 +84,39 @@
34
84
 
35
85
  serialPort1.ReceivedBytesThreshold = 1;
36
86
 
87
+
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+
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+ try
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+
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+ {
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+
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+ if(serialPort1.IsOpen == true) { return; }
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+
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+ serialPort1.Open();
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+
97
+ }
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+
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+ catch(Exception ex) { MessageBox.Show(ex.Message); }
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+
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+
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+
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+ if(serialPort1.IsOpen == true)
104
+
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+ {
106
+
107
+ serialPort1.NewLine = DELIMITER;
108
+
109
+ try { serialPort1.WriteLine("sousin"); }
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+
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+ catch (Exception ex) { MessageBox.Show(ex.Message); }
112
+
113
+ }
114
+
115
+ }
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+
117
+
118
+
37
- private void SerialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
119
+ private void SerialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
38
120
 
39
121
  {
40
122
 
@@ -58,9 +140,169 @@
58
140
 
59
141
  }
60
142
 
143
+ private void SerialPort1_ErrorReceived(object sender, SerialErrorReceivedEventArgs e)
144
+
145
+ {
146
+
147
+ MessageBox.Show("error");
148
+
149
+ }
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+
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+
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+
153
+ private void button1_Click(object sender, EventArgs e)
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+
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+ {
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+
157
+ MessageBox.Show(serialPort1.ReadExisting());
158
+
159
+ }
160
+
161
+ }
162
+
163
+ }
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+
165
+
166
+
61
167
  ```
62
168
 
63
-
169
+ Form1.Designercs
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+
171
+ ```C#
172
+
173
+ namespace _232CTest
174
+
175
+ {
176
+
177
+ partial class Form1
178
+
179
+ {
180
+
181
+ /// <summary>
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+
183
+ /// 必要なデザイナー変数です。
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+
185
+ /// </summary>
186
+
187
+ private System.ComponentModel.IContainer components = null;
188
+
189
+
190
+
191
+ /// <summary>
192
+
193
+ /// 使用中のリソースをすべてクリーンアップします。
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+
195
+ /// </summary>
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+
197
+ /// <param name="disposing">マネージド リソースを破棄する場合は true を指定し、その他の場合は false を指定します。</param>
198
+
199
+ protected override void Dispose(bool disposing)
200
+
201
+ {
202
+
203
+ if (disposing && (components != null))
204
+
205
+ {
206
+
207
+ components.Dispose();
208
+
209
+ }
210
+
211
+ base.Dispose(disposing);
212
+
213
+ }
214
+
215
+
216
+
217
+ #region Windows フォーム デザイナーで生成されたコード
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+
219
+
220
+
221
+ /// <summary>
222
+
223
+ /// デザイナー サポートに必要なメソッドです。このメソッドの内容を
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+
225
+ /// コード エディターで変更しないでください。
226
+
227
+ /// </summary>
228
+
229
+ private void InitializeComponent()
230
+
231
+ {
232
+
233
+ this.components = new System.ComponentModel.Container();
234
+
235
+ this.serialPort1 = new System.IO.Ports.SerialPort(this.components);
236
+
237
+ this.button1 = new System.Windows.Forms.Button();
238
+
239
+ this.SuspendLayout();
240
+
241
+ //
242
+
243
+ // button1
244
+
245
+ //
246
+
247
+ this.button1.Location = new System.Drawing.Point(111, 66);
248
+
249
+ this.button1.Name = "button1";
250
+
251
+ this.button1.Size = new System.Drawing.Size(88, 60);
252
+
253
+ this.button1.TabIndex = 0;
254
+
255
+ this.button1.Text = "button1";
256
+
257
+ this.button1.UseVisualStyleBackColor = true;
258
+
259
+ this.button1.Click += new System.EventHandler(this.button1_Click);
260
+
261
+ //
262
+
263
+ // Form1
264
+
265
+ //
266
+
267
+ this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 15F);
268
+
269
+ this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
270
+
271
+ this.ClientSize = new System.Drawing.Size(800, 450);
272
+
273
+ this.Controls.Add(this.button1);
274
+
275
+ this.Name = "Form1";
276
+
277
+ this.Text = "Form1";
278
+
279
+ this.Load += new System.EventHandler(this.Form1_Load);
280
+
281
+ this.ResumeLayout(false);
282
+
283
+
284
+
285
+ }
286
+
287
+
288
+
289
+ #endregion
290
+
291
+
292
+
293
+ private System.IO.Ports.SerialPort serialPort1;
294
+
295
+ private System.Windows.Forms.Button button1;
296
+
297
+ }
298
+
299
+ }
300
+
301
+
302
+
303
+
304
+
305
+ ```
64
306
 
65
307
  ### 試したこと
66
308
 

1

コードを挿入に修正

2020/09/24 04:55

投稿

tme_ike
tme_ike

スコア1

test CHANGED
File without changes
test CHANGED
@@ -14,49 +14,51 @@
14
14
 
15
15
  設定と受信イベント部
16
16
 
17
-
18
-
19
- 　serialPort1.PortName = "COM4";
20
-
21
- 　serialPort1.BaudRate = 9600;
22
-
23
- 　serialPort1.DataBits = 8;
17
+ ```C#
24
-
25
- 　serialPort1.StopBits = System.IO.Ports.StopBits.One;
26
-
27
- 　serialPort1.Parity = System.IO.Ports.Parity.None;
28
-
29
- 　serialPort1.DtrEnable = true;
30
-
31
- 　serialPort1.RtsEnable = true;
32
-
33
- 　serialPort1.Handshake = Handshake.None;
34
-
35
- 　serialPort1.ReceivedBytesThreshold = 1;
36
18
 
37
19
 
38
20
 
39
- 　private void SerialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
21
+ serialPort1.BaudRate = 9600;
40
22
 
41
- 　{
23
+ serialPort1.DataBits = 8;
42
24
 
43
- 　　string strDataReceived = "";
25
+ serialPort1.StopBits = System.IO.Ports.StopBits.One;
44
26
 
45
- 　　try { strDataReceived = serialPort1.ReadExisting(); }
27
+ serialPort1.Parity = System.IO.Ports.Parity.None;
46
28
 
47
- 　　catch (Exception ex) { MessageBox.Show(ex.Message); }
29
+ serialPort1.DtrEnable = true;
48
30
 
49
- 　　if(serialPort1.IsOpen == true)
31
+ serialPort1.RtsEnable = true;
50
32
 
51
- 　　{
33
+ serialPort1.Handshake = Handshake.None;
52
34
 
53
- 　　　serialPort1.Close();
35
+ serialPort1.ReceivedBytesThreshold = 1;
54
36
 
55
- 　　　MessageBox.Show(strDataReceived);
37
+ private void SerialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
56
38
 
57
- 　　}
39
+ {
58
40
 
41
+ string strDataReceived = "";
42
+
43
+ try { strDataReceived = serialPort1.ReadExisting(); }
44
+
45
+ catch (Exception ex) { MessageBox.Show(ex.Message); }
46
+
47
+
48
+
49
+ if(serialPort1.IsOpen == true)
50
+
51
+ {
52
+
53
+ serialPort1.Close();
54
+
55
+ MessageBox.Show(strDataReceived);
56
+
59
- 　}
57
+ }
58
+
59
+ }
60
+
61
+ ```
60
62
 
61
63
 
62
64