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标题: arduino单片机便携式数字示波器DIY过程 [打印本页]

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作者: バ幸福De右岸    时间: 2017-2-7 12:50
标题: arduino单片机便携式数字示波器DIY过程

                               
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程序：

• #include <U8glib.h> //声明库
• U8GLIB_ST7920_128X64_4X u8g(13, 12, 11); // 声明液晶屏  13=sck, 12=mosi, 11=cs
• int Input = A0;  //声明输入引脚
• int Key_add = 8;  //声明按钮引脚
• int Key_sub = 9;
• int Key_hold = 10;
• int x, y; //声明坐标
• int i, i1, i2, V_min, V_max, V_mid, t, t0, t1, sta, Key = 1, hold = 0;
• long Freq;
• float Vpp;
• int Y[96]; //声明信号值储存数组
• int Buffer[192];
• const uint8_t L[] PROGMEM = {
•   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x60,0x00,0x00,0x0F,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x18,0x00,
• 0x00,0x70,0x40,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x03,0x80,0x00,0x3F,0xFC,0x00,
• 0x00,0x76,0x70,0x00,0x83,0xFC,0x00,0x0F,0xF0,0x00,0x03,0x80,0x01,0xFF,0x9C,0x00,
• 0x01,0x7E,0x70,0x01,0x9F,0xFC,0x00,0x3F,0xE0,0x01,0xC1,0x80,0x01,0x99,0x98,0x00,
• 0x01,0xFC,0x60,0x01,0xFC,0x1E,0x00,0x1C,0x00,0x01,0xC1,0x9C,0x01,0x99,0xF8,0x00,
• 0x01,0xF0,0xE0,0x01,0x83,0xB8,0x00,0x00,0x00,0x00,0xC3,0xFE,0x01,0xFE,0xC0,0x00,
• 0x00,0x7E,0xC6,0x03,0x87,0xE0,0x00,0x00,0x00,0x00,0x3F,0xFE,0x00,0x86,0x1E,0x00,
• 0x07,0xF8,0xFF,0x03,0x7D,0xC0,0x00,0x07,0xFF,0x00,0x39,0x98,0x00,0x06,0xFE,0x00,
• 0x01,0xFD,0xF8,0x00,0x33,0x80,0x0F,0xFF,0xFF,0x86,0x39,0x80,0x01,0xFF,0xF8,0x00,
• 0x01,0xFF,0xB0,0x00,0x07,0x00,0x0F,0xFF,0x00,0x07,0x39,0x80,0x01,0xFF,0x00,0x00,
• 0x07,0x27,0x30,0x00,0x07,0xFF,0x00,0x07,0x00,0x07,0x3F,0xF0,0x00,0x1F,0x80,0x00,
• 0x0E,0xFB,0x30,0x01,0xFF,0xFF,0x80,0x87,0x00,0x00,0x3F,0x70,0x00,0x38,0xF0,0x00,
• 0x08,0xFF,0xF0,0x0F,0xFF,0x80,0x00,0x87,0x38,0x00,0xBC,0x60,0x00,0x78,0x7E,0x00,
• 0x07,0xFD,0xE0,0x0F,0x03,0x80,0x01,0x87,0x3E,0x01,0xBF,0xE0,0x01,0xE0,0x3F,0x80,
• 0x1F,0xD8,0xE0,0x00,0x03,0x80,0x01,0x87,0x1E,0x03,0x33,0xE0,0x07,0x9C,0x7C,0x00,
• 0x08,0xD8,0xE0,0x00,0x03,0x80,0x03,0x87,0x0F,0x03,0x31,0xC0,0x01,0xFF,0xFE,0x00,
• 0x00,0xF1,0xF8,0x00,0x03,0x80,0x03,0x07,0x06,0x07,0x31,0xF0,0x01,0x8D,0x8C,0x00,
• 0x00,0xFF,0x3C,0x00,0x03,0x80,0x01,0x1F,0x00,0x07,0x67,0xFE,0x01,0x9D,0x9C,0x00,
• 0x01,0xFE,0x1F,0x00,0x3F,0x80,0x00,0x1F,0x00,0x06,0xDF,0x3F,0x81,0xFD,0xFC,0x00,
• 0x07,0x88,0x1F,0x80,0x1F,0x00,0x00,0x0F,0x00,0x00,0xB8,0x0F,0xC0,0xE0,0xC0,0x00,
• 0x06,0x00,0x00,0x00,0x0F,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x00,
• 0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,0x3C,0x0C,0x7F,0xC0,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0x7C,0x0C,0x7F,0xC0,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xDC,0xEE,0x3C,0x7F,0xC0,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x8F,0xC7,0x7C,0x03,0x80,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xC7,0x6C,0x03,0x80,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1D,0xC7,0x0C,0x07,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1D,0xC7,0x0C,0x06,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x39,0xC7,0x0C,0x0E,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x71,0xC7,0x0C,0x0E,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF1,0xC7,0x0C,0x0C,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xE0,0xEE,0x0C,0x1C,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x7E,0x0C,0x1C,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x7C,0x0C,0x1C,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
• };
• void setup( )
• {
•   pinMode(Key_add, INPUT);
•   digitalWrite(Key_add, HIGH);
•   pinMode(Key_sub, INPUT);
•   digitalWrite(Key_sub, HIGH);
•   pinMode(Key_hold, INPUT);
•   digitalWrite(Key_hold, HIGH);
•   ADMUX = 0xe0;
•   ADCSRA = 0xe2;
•   u8g.setFont(u8g_font_5x7);
•   u8g.firstPage();
•   do {
•     u8g.drawBitmapP( 0, 0, 16, 64, L);
•   } while ( u8g.nextPage() );
•   delay(2000);
• }
• void sample( )
• { for (i = 0; i < 192; i++)
•   {
•     Buffer = ADCH;
•     switch (Key)
•     {
•       case 1:
•         break;
•       case 2:
•         delayMicroseconds(4);
•         break;
•       case 3:
•         delayMicroseconds(10);
•         break;
•       case 4:
•         delayMicroseconds(23);
•         break;
•       case 5:
•         delayMicroseconds(60);
•         break;
•       case 6:
•         delayMicroseconds(123);
•         break;
•       case 7:
•         delayMicroseconds(248);
•         break;
•       case 8:
•         delayMicroseconds(623);
•         break;
•       case 9:
•         delayMicroseconds(1247);
•         break;
•       default: break;
•     }
•   }
• }
• void Measure()
• {
•   V_max = Buffer[0];
•   V_min = Buffer[0];
•   for (i = 0; i < 192; i++)
•   {
•     if (Buffer > V_max)
•       V_max = Buffer;
•     if (Buffer < V_min)
•       V_min = Buffer;
•   }
•   V_mid = (V_max + V_min) / 2;
•   Vpp = (V_max - V_min) * 1.1 / 255;
•   for (i = 0; i < 97; i++)
•   {
•     if (Buffer < V_mid && Buffer[i + 1] >= V_mid)
•     {
•       i1 = i;
•       break;
•     }
•   }
•   for (i = i1 + 1; i < 98 + i1; i++)
•   {
•     if (Buffer < V_mid && Buffer[i + 1] >= V_mid)
•     {
•       i2 = i;
•       break;
•     }
•   }
•   t = i2 - i1;
•   if (t > 0)
•     Freq = 8000 / t;
•   else
•     Freq = 0;
• }
• void Transform( )
• {
•   for (sta = 0; sta < 96; sta++)
•   {
•     if (Buffer[sta] < 128 && Buffer[sta + 2] > 128)
•       break;
•   }
•   for (i = 0; i < 96; i++)
•     Y =  63 - (Buffer[i + sta] >> 2);
• }
• void draw( )
• {
•   for (x = 0; x < 95; x++)
•     u8g.drawLine(x, Y[x], x, Y[x + 1]); //画线
•   //画边框
•   u8g.drawFrame(0, 0, 97, 64);
•   // 画坐标轴
•   u8g.drawLine(48, 0, 48, 63);
•   u8g.drawLine(0, 32, 96, 32);
•   for (x = 0; x < 96; x += 8)
•     u8g.drawLine(x, 31, x, 33);
•   for (y = 0; y < 64; y += 8)
•     u8g.drawLine(47, y, 49, y);
•   //画网格
•   for (x = 8; x < 96; x += 8)
•   {
•     for (y = 8; y < 64; y += 8)
•       u8g.drawPixel(x, y);
•   }
•   //显示参数
•   u8g.drawStr(98, 7, "MS/div");
•   u8g.drawStr(98, 23, "V/div");
•   u8g.drawStr(98, 30, "0.324");
•   u8g.drawStr(98, 40, "Vpp");
•   u8g.setPrintPos( 98, 47);
•   u8g.print(Vpp);
•   u8g.drawStr(118, 47, "V");
•   u8g.drawStr(98, 55, "F(HZ)");
•   switch (Key)
•   {
•     case  1:
•       u8g.drawStr(98, 14, "0.02");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq * 50);
•       break;
•     case  2:
•       u8g.drawStr(98, 14, "0.05");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq * 20);
•       break;
•     case  3:
•       u8g.drawStr(98, 14, " 0.1");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq * 10);
•       break;
•     case  4:
•       u8g.drawStr(98, 14, " 0.2");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq * 5);
•       break;
•     case  5:
•       u8g.drawStr(98, 14, " 0.5");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq * 2);
•       break;
•     case  6:
•       u8g.drawStr(98, 14, "  1");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq);
•       break;
•     case  7:
•       u8g.drawStr(98, 14, "  2");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq / 2);
•       break;
•     case  8:
•       u8g.drawStr(98, 14, "  5");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq / 5);
•       break;
•     case  9:
•       u8g.drawStr(98, 14, " 10");
•       u8g.setPrintPos( 98, 62);
•       u8g.print(Freq / 10);
•       break;
•     default: break;
•   }
• }
• //键盘扫描
• void Key_scan()
• {
•   if (digitalRead(Key_add) == LOW)
•   {
•     while (digitalRead(Key_add) == LOW);
•     Key++;
•     if (Key == 10)
•       Key = 9;
•     delay(10);
•   }
•   if (digitalRead(Key_sub) == LOW)
•   {
•     while (digitalRead(Key_sub) == LOW);
•     Key--;
•     if (Key == 0)
•       Key = 1;
•     delay(10);
•   }
•   if (digitalRead(Key_hold) == LOW)
•   {
•     while (digitalRead(Key_hold) == LOW);
•     hold = ~hold;
•     delay(10);
•   }
• }
• void loop( )
• {
•   sample( );
•   Measure( );
•   Transform( );
•   Key_scan( );
•   if (hold == 0)
•   {
•     u8g.firstPage( );
•     do
•     {
•       draw( );
•     }
•     while ( u8g.nextPage( ));
•   }
• }
  

[color=rgb(51, 102, 153) !important]复制代码
[color=rgb(51, 102, 153) !important]

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作者: yucongwu7410    时间: 2017-2-7 21:27


那一堆0x00的信号值储存数组是怎么调用的？U8glib.h库里包含了哪些东西

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作者: バ幸福De右岸    时间: 2017-2-8 06:37

yucongwu7410 发表于 2017-2-7 21:27
那一堆0x00的信号值储存数组是怎么调用的？U8glib.h库里包含了哪些东西

这个帖子是转载的,这里面的东西我也不明白..不好意思了

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作者: 沈元    时间: 2017-3-7 14:16
这样做出来的示波器 只有几M的带宽吧

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