Donghun Kang / Mbed 2 deprecated 05_DAC_20191104

DonghunKang

Dependencies:   mbed Adafruit_GFX

main.cpp@4:a37c4436b6eb, 2019-11-04 (annotated)

Committer:
Donghun
Date:
Mon Nov 04 13:44:19 2019 +0000
Revision:
4:a37c4436b6eb
Parent:
3:e7cab3f9facb 
submission_donghunKang

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eins 3:e7cab3f9facb 1 // made by H. S. Lee. 2019-10-28
eins 3:e7cab3f9facb 2 // DAC Test for F303RE
eins 3:e7cab3f9facb 3
eins 0:46005cfeedb5 4 #include "mbed.h"
eins 0:46005cfeedb5 5 #include "Adafruit_SSD1306.h" // Adafruit_GFX library
Donghun 4:a37c4436b6eb 6 Ticker DACtimer;
eins 1:ae0b11ca17d1 7 Serial pc(SERIAL_TX, SERIAL_RX);
Donghun 4:a37c4436b6eb 8 DigitalOut Board_led(LED1);
Donghun 4:a37c4436b6eb 9 DigitalOut Out_led(PA_12);
eins 1:ae0b11ca17d1 10 DigitalIn myButton(PC_13);
eins 1:ae0b11ca17d1 11 DigitalIn exButton(PC_11);
eins 3:e7cab3f9facb 12 AnalogOut myAnalogOut(PA_4);
Donghun 4:a37c4436b6eb 13 bool flagTimer = 0;
Donghun 4:a37c4436b6eb 14 BusOut My7segment_pin(PA_8, PA_9, PA_10, PC_9, PC_8, PC_7, PC_6, PA_11); // 8bit data
eins 1:ae0b11ca17d1 15 // LSB, , MSB
eins 1:ae0b11ca17d1 16 char val7Seg[16] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F,
eins 1:ae0b11ca17d1 17 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71};
eins 1:ae0b11ca17d1 18 char rxData[5];
eins 1:ae0b11ca17d1 19 bool flagRx = 0;
Donghun 4:a37c4436b6eb 20 int delay =0;
eins 0:46005cfeedb5 21
Donghun 4:a37c4436b6eb 22 #define Pr_2_3
eins 2:3061fe655b7d 23
eins 2:3061fe655b7d 24 #ifdef TEST1
eins 2:3061fe655b7d 25
eins 2:3061fe655b7d 26 int main(void)
eins 2:3061fe655b7d 27 {
eins 3:e7cab3f9facb 28 pc.baud(115200);
eins 3:e7cab3f9facb 29 pc.puts("\n TESt1: Starting Program \n");
eins 3:e7cab3f9facb 30
eins 2:3061fe655b7d 31 while (1) {
eins 2:3061fe655b7d 32 // change the voltage on the digital output pin by 0.1 * VCC
eins 2:3061fe655b7d 33 // and print what the measured voltage should be (assuming VCC = 3.3v)
eins 2:3061fe655b7d 34 for (float n = 0.0f; n < 1.0f; n += 0.1f) {
eins 2:3061fe655b7d 35 myAnalogOut = n;
eins 2:3061fe655b7d 36 // myAnalogOut.write(n);
eins 3:e7cab3f9facb 37
eins 3:e7cab3f9facb 38 pc.printf("n=%1.2f, output = %1.2f volts\n", n, myAnalogOut.read() * 3.3f);
eins 2:3061fe655b7d 39 // turn on the led if the voltage is greater than 0.5f * VCC
Donghun 4:a37c4436b6eb 40 Board_led = (myAnalogOut > 0.5f) ? 1 : 0;
eins 2:3061fe655b7d 41 wait(0.1);
eins 2:3061fe655b7d 42 }
eins 2:3061fe655b7d 43 }
eins 2:3061fe655b7d 44 }
eins 2:3061fe655b7d 45 #endif
eins 2:3061fe655b7d 46
eins 2:3061fe655b7d 47 #ifdef TEST2
eins 2:3061fe655b7d 48 Ticker DACtimer;
eins 2:3061fe655b7d 49 bool flagTimer = 0;
eins 2:3061fe655b7d 50
eins 2:3061fe655b7d 51 void DACInt()
eins 2:3061fe655b7d 52 {
eins 2:3061fe655b7d 53 flagTimer = 1;
eins 2:3061fe655b7d 54 }
eins 2:3061fe655b7d 55
eins 2:3061fe655b7d 56 main()
eins 2:3061fe655b7d 57 {
eins 3:e7cab3f9facb 58 pc.baud(115200);
eins 3:e7cab3f9facb 59 pc.puts("\n Test2: Starting Program \n");
eins 3:e7cab3f9facb 60
eins 2:3061fe655b7d 61 // for 10kHz sine wave generation, it's needed to have
eins 2:3061fe655b7d 62 // a sampling frequency in 10 times of that frequency,
eins 2:3061fe655b7d 63 // or 100kHz -> 10us period
eins 3:e7cab3f9facb 64 const float samplingTime = 0.00005;
eins 3:e7cab3f9facb 65
eins 3:e7cab3f9facb 66 DACtimer.attach(&DACInt, samplingTime); // 50us is appropriate for F303RE (20kHz)
eins 3:e7cab3f9facb 67 // DACtimer.attach_us(&DACInt, samplingTime*1000000); // 50us is appropriate for F303RE
eins 3:e7cab3f9facb 68
eins 3:e7cab3f9facb 69 float soundFreq = 1000; // 1kHz = 1000Hz
eins 3:e7cab3f9facb 70 pc.printf("smapling time = %dus, sound frequency = %dHz\n", (int)(samplingTime*1000000), (int)soundFreq);
eins 3:e7cab3f9facb 71
eins 3:e7cab3f9facb 72 unsigned int n = 0;
eins 3:e7cab3f9facb 73 float tempVal;
eins 0:46005cfeedb5 74 while(1)
eins 0:46005cfeedb5 75 {
eins 2:3061fe655b7d 76 if (1 == flagTimer)
eins 2:3061fe655b7d 77 {
eins 3:e7cab3f9facb 78 flagTimer = 0;
eins 3:e7cab3f9facb 79 tempVal = soundFreq*n*samplingTime;
eins 3:e7cab3f9facb 80 myAnalogOut = sin(2*3.14159*tempVal)*0.5+0.5; // an angle is expressed in radians.
eins 3:e7cab3f9facb 81 // myAnalogOut = (sin(2*3.14159*tempVal)+sin(tempVal))*0.25+0.5; // an angle is expressed in radians.
eins 3:e7cab3f9facb 82 if (tempVal > 1.0f) n = 0; // to prevent a phase shift due to overflow of the unsinged int variable
eins 2:3061fe655b7d 83 n++;
eins 2:3061fe655b7d 84 }
eins 2:3061fe655b7d 85 }
eins 2:3061fe655b7d 86 }
eins 2:3061fe655b7d 87 #endif
eins 0:46005cfeedb5 88
Donghun 4:a37c4436b6eb 89
Donghun 4:a37c4436b6eb 90 #ifdef Pr_1
Donghun 4:a37c4436b6eb 91 void DACInt()
Donghun 4:a37c4436b6eb 92 {
Donghun 4:a37c4436b6eb 93 flagTimer = 1;
Donghun 4:a37c4436b6eb 94 }
Donghun 4:a37c4436b6eb 95
Donghun 4:a37c4436b6eb 96 main()
Donghun 4:a37c4436b6eb 97 {
Donghun 4:a37c4436b6eb 98 pc.baud(115200);
Donghun 4:a37c4436b6eb 99 pc.puts("\n Test2: Starting Program \n");
Donghun 4:a37c4436b6eb 100
Donghun 4:a37c4436b6eb 101 const float samplingTime = 0.00005;
Donghun 4:a37c4436b6eb 102 DACtimer. attach(&DACInt, samplingTime);
Donghun 4:a37c4436b6eb 103 float soundFreq = 400.0f;
Donghun 4:a37c4436b6eb 104 float soundFreq_count = 0.0275f;
Donghun 4:a37c4436b6eb 105 unsigned int n = 0;
Donghun 4:a37c4436b6eb 106 float tempVal;
Donghun 4:a37c4436b6eb 107 while(1)
Donghun 4:a37c4436b6eb 108 {
Donghun 4:a37c4436b6eb 109 if (1==flagTimer)
Donghun 4:a37c4436b6eb 110 {
Donghun 4:a37c4436b6eb 111 flagTimer = 0;
Donghun 4:a37c4436b6eb 112 tempVal = soundFreq*n*samplingTime;
Donghun 4:a37c4436b6eb 113 myAnalogOut = sin(2 * 3.14159 * tempVal) * 0.5 + 0.5;
Donghun 4:a37c4436b6eb 114 // myAnalogOut = (sin(2*3.14159*tempVal)+sin(tempVal))*0.25+0.5; // an angle is expressed in radians.Q
Donghun 4:a37c4436b6eb 115 soundFreq = soundFreq + soundFreq_count;
Donghun 4:a37c4436b6eb 116 if(2000<soundFreq) soundFreq_count = -soundFreq_count;
Donghun 4:a37c4436b6eb 117 if(400>soundFreq) soundFreq_count = -soundFreq_count;
Donghun 4:a37c4436b6eb 118 if(tempVal>1.0f)n=0;
Donghun 4:a37c4436b6eb 119 n++;
Donghun 4:a37c4436b6eb 120 // if(12000.0f < n) n = 0;
Donghun 4:a37c4436b6eb 121
Donghun 4:a37c4436b6eb 122 }
Donghun 4:a37c4436b6eb 123
Donghun 4:a37c4436b6eb 124 }
Donghun 4:a37c4436b6eb 125 }
Donghun 4:a37c4436b6eb 126 #endif
Donghun 4:a37c4436b6eb 127
Donghun 4:a37c4436b6eb 128
Donghun 4:a37c4436b6eb 129 #ifdef Pr_2_3
Donghun 4:a37c4436b6eb 130 void ReceiveInt()
Donghun 4:a37c4436b6eb 131 {
Donghun 4:a37c4436b6eb 132 char inChar;
Donghun 4:a37c4436b6eb 133 static char rxCount = 0;
Donghun 4:a37c4436b6eb 134 static char rxBuf[5];
Donghun 4:a37c4436b6eb 135
Donghun 4:a37c4436b6eb 136 while(1 == pc.readable())
Donghun 4:a37c4436b6eb 137 {
Donghun 4:a37c4436b6eb 138 inChar=pc.getc();
Donghun 4:a37c4436b6eb 139 pc.putc(inChar);
Donghun 4:a37c4436b6eb 140 if ('<' == inChar)
Donghun 4:a37c4436b6eb 141 {
Donghun 4:a37c4436b6eb 142 rxCount = 1;
Donghun 4:a37c4436b6eb 143 }
Donghun 4:a37c4436b6eb 144 else if (rxCount > 0 && rxCount < 5)
Donghun 4:a37c4436b6eb 145 {
Donghun 4:a37c4436b6eb 146 rxBuf[rxCount - 1] = inChar;
Donghun 4:a37c4436b6eb 147 rxCount++;
Donghun 4:a37c4436b6eb 148 }
Donghun 4:a37c4436b6eb 149 else if (rxCount == 5 && '>' == inChar)
Donghun 4:a37c4436b6eb 150 {
Donghun 4:a37c4436b6eb 151 rxCount = 0;
Donghun 4:a37c4436b6eb 152 flagRx = 1;
Donghun 4:a37c4436b6eb 153 memcpy(rxData,rxBuf,rxCount-1);
Donghun 4:a37c4436b6eb 154 }
Donghun 4:a37c4436b6eb 155 else
Donghun 4:a37c4436b6eb 156 {
Donghun 4:a37c4436b6eb 157 rxCount = 0;
Donghun 4:a37c4436b6eb 158 }
Donghun 4:a37c4436b6eb 159 }
Donghun 4:a37c4436b6eb 160 }
Donghun 4:a37c4436b6eb 161
Donghun 4:a37c4436b6eb 162 void DACInt()
Donghun 4:a37c4436b6eb 163 {
Donghun 4:a37c4436b6eb 164 flagTimer = 1;
Donghun 4:a37c4436b6eb 165 }
Donghun 4:a37c4436b6eb 166
Donghun 4:a37c4436b6eb 167 main()
Donghun 4:a37c4436b6eb 168 {
Donghun 4:a37c4436b6eb 169 pc.baud(115200);
Donghun 4:a37c4436b6eb 170 pc.puts("\n Practice2: Starting Program \n");
Donghun 4:a37c4436b6eb 171 pc.attach(&ReceiveInt,Serial::RxIrq);
Donghun 4:a37c4436b6eb 172
Donghun 4:a37c4436b6eb 173 char tmpCommand[3];
Donghun 4:a37c4436b6eb 174 int rxVal;
Donghun 4:a37c4436b6eb 175 Board_led=1;
Donghun 4:a37c4436b6eb 176 const float samplingTime = 0.00005;
Donghun 4:a37c4436b6eb 177 DACtimer. attach(&DACInt, samplingTime);
Donghun 4:a37c4436b6eb 178 float soundFreq = 400.0f;
Donghun 4:a37c4436b6eb 179 unsigned int n = 0;
Donghun 4:a37c4436b6eb 180 float tempVal;
Donghun 4:a37c4436b6eb 181 double soundVolume = 2;
Donghun 4:a37c4436b6eb 182 double squaremaker = 0.0005;
Donghun 4:a37c4436b6eb 183
Donghun 4:a37c4436b6eb 184 while(1)
Donghun 4:a37c4436b6eb 185 {
Donghun 4:a37c4436b6eb 186 if(1 == flagRx)
Donghun 4:a37c4436b6eb 187 {
Donghun 4:a37c4436b6eb 188 flagRx=0;
Donghun 4:a37c4436b6eb 189 tmpCommand[0]=rxData[0];
Donghun 4:a37c4436b6eb 190 tmpCommand[1]=rxData[1];
Donghun 4:a37c4436b6eb 191 tmpCommand[2]=0;
Donghun 4:a37c4436b6eb 192 rxVal = atoi(rxData + 2);
Donghun 4:a37c4436b6eb 193 if(!strcmp(tmpCommand,"SI"))
Donghun 4:a37c4436b6eb 194 {
Donghun 4:a37c4436b6eb 195 pc.printf("Sine Wave: %d\n",rxVal);
Donghun 4:a37c4436b6eb 196 soundFreq = rxVal*10.0f;
Donghun 4:a37c4436b6eb 197 flagTimer = 2;
Donghun 4:a37c4436b6eb 198 }
Donghun 4:a37c4436b6eb 199 else if(!strcmp(tmpCommand,"SQ"))
Donghun 4:a37c4436b6eb 200 {
Donghun 4:a37c4436b6eb 201 pc.printf("Square Wave: %d\n",rxVal);
Donghun 4:a37c4436b6eb 202 flagTimer = 3;
Donghun 4:a37c4436b6eb 203 }
Donghun 4:a37c4436b6eb 204 else if(!strcmp(tmpCommand,"PL"))
Donghun 4:a37c4436b6eb 205 {
Donghun 4:a37c4436b6eb 206 pc.printf("Play Limit: %d\n",rxVal);
Donghun 4:a37c4436b6eb 207 soundVolume = 0;
Donghun 4:a37c4436b6eb 208 flagTimer = 4;
Donghun 4:a37c4436b6eb 209 }
Donghun 4:a37c4436b6eb 210 else if(!strcmp(tmpCommand,"VL"))
Donghun 4:a37c4436b6eb 211 {
Donghun 4:a37c4436b6eb 212 pc.printf("Volume Limit: %d\n",rxVal);
Donghun 4:a37c4436b6eb 213 soundVolume = rxVal*1.0f;
Donghun 4:a37c4436b6eb 214 flagTimer = 5;
Donghun 4:a37c4436b6eb 215 }
Donghun 4:a37c4436b6eb 216 else if(!strcmp(tmpCommand,"TR"))
Donghun 4:a37c4436b6eb 217 {
Donghun 4:a37c4436b6eb 218 pc.printf("Triangle Wave: %ds\n",rxVal);
Donghun 4:a37c4436b6eb 219 flagTimer = 6;
Donghun 4:a37c4436b6eb 220 }
Donghun 4:a37c4436b6eb 221 else if(!strcmp(tmpCommand,"SA"))
Donghun 4:a37c4436b6eb 222 {
Donghun 4:a37c4436b6eb 223 pc.printf("Sawtooth Wave: %d\n",rxVal);
Donghun 4:a37c4436b6eb 224 flagTimer = 7;
Donghun 4:a37c4436b6eb 225 }
Donghun 4:a37c4436b6eb 226 }
Donghun 4:a37c4436b6eb 227
Donghun 4:a37c4436b6eb 228 if (2==flagTimer)
Donghun 4:a37c4436b6eb 229 {
Donghun 4:a37c4436b6eb 230 flagTimer = 0;
Donghun 4:a37c4436b6eb 231 tempVal = soundFreq*n*samplingTime;
Donghun 4:a37c4436b6eb 232 myAnalogOut = sin(soundVolume*3.14159*tempVal)*0.5+0.5;
Donghun 4:a37c4436b6eb 233 if (tempVal > 1.0f) n = 0;
Donghun 4:a37c4436b6eb 234 n++;
Donghun 4:a37c4436b6eb 235 }
Donghun 4:a37c4436b6eb 236 else if (3==flagTimer)
Donghun 4:a37c4436b6eb 237 {
Donghun 4:a37c4436b6eb 238 flagTimer = 0;
Donghun 4:a37c4436b6eb 239 tempVal = soundFreq*n*squaremaker;
Donghun 4:a37c4436b6eb 240 myAnalogOut = sin(soundVolume*3.14159*tempVal)*0.5+0.5;
Donghun 4:a37c4436b6eb 241 if (tempVal > 1.0f) n = 0;
Donghun 4:a37c4436b6eb 242 n++;
Donghun 4:a37c4436b6eb 243 }
Donghun 4:a37c4436b6eb 244 else if (4==flagTimer)
Donghun 4:a37c4436b6eb 245 {
Donghun 4:a37c4436b6eb 246 flagTimer = 0;
Donghun 4:a37c4436b6eb 247 tempVal = soundFreq*n*samplingTime;
Donghun 4:a37c4436b6eb 248 myAnalogOut = sin(soundVolume*3.14159*tempVal)*0.5+0.5;
Donghun 4:a37c4436b6eb 249 if (tempVal > 1.0f) n = 0;
Donghun 4:a37c4436b6eb 250 n++;
Donghun 4:a37c4436b6eb 251 }
Donghun 4:a37c4436b6eb 252 else if (5==flagTimer)
Donghun 4:a37c4436b6eb 253 {
Donghun 4:a37c4436b6eb 254 flagTimer = 0;
Donghun 4:a37c4436b6eb 255 tempVal = soundFreq*n*samplingTime;
Donghun 4:a37c4436b6eb 256 myAnalogOut = sin(soundVolume*3.14159*tempVal)*0.5+0.5;
Donghun 4:a37c4436b6eb 257 if (tempVal > 1.0f) n = 0;
Donghun 4:a37c4436b6eb 258 n++;
Donghun 4:a37c4436b6eb 259 }
Donghun 4:a37c4436b6eb 260 else if (6==flagTimer)
Donghun 4:a37c4436b6eb 261 {
Donghun 4:a37c4436b6eb 262 flagTimer = 0;
Donghun 4:a37c4436b6eb 263 tempVal = soundFreq*n*samplingTime;
Donghun 4:a37c4436b6eb 264 myAnalogOut = sin(soundVolume*3.14159*tempVal)*0.5 + 0.5 + 0.5 * sin((soundVolume * 3.14159 * tempVal)*2) * 0.5 + 0.33 * sin((soundVolume + 3.14159 + tempVal)*3) * 0.5 + 0.5 + 0.25 * sin((soundVolume + 3.14159 + tempVal)*4) * 0.5 + 0.5 + 0.2 * sin((soundVolume + 3.14159 + tempVal)*5) * 0.5 + 0.5 + 0.166 * sin((soundVolume + 3.14159 + tempVal)*6) * 0.5 + 0.5;
Donghun 4:a37c4436b6eb 265 if (tempVal > 1.0f) n = 0;
Donghun 4:a37c4436b6eb 266 n++;
Donghun 4:a37c4436b6eb 267 }
Donghun 4:a37c4436b6eb 268 else if (7==flagTimer)
Donghun 4:a37c4436b6eb 269 {
Donghun 4:a37c4436b6eb 270 flagTimer = 0;
Donghun 4:a37c4436b6eb 271 tempVal = soundFreq*n*samplingTime;
Donghun 4:a37c4436b6eb 272 myAnalogOut = sin(soundVolume*3.14159*tempVal)*0.5 + 0.5 + 0.33 * sin((soundVolume * 3.14159 * tempVal)*3 ) * 0.5 + 0.2 * sin((soundVolume + 3.14159 + tempVal)*5) * 0.5 + 0.5 + 0.144 * sin((soundVolume + 3.14159 + tempVal)*7) * 0.5 + 0.5 + 0.111 * sin((soundVolume + 3.14159 + tempVal)*9) * 0.5 + 0.5 + 0.0999 * sin((soundVolume + 3.14159 + tempVal)*11) * 0.5 + 0.5;
Donghun 4:a37c4436b6eb 273 if (tempVal > 1.0f) n = 0;
Donghun 4:a37c4436b6eb 274 n++;
Donghun 4:a37c4436b6eb 275 }
Donghun 4:a37c4436b6eb 276
Donghun 4:a37c4436b6eb 277 }
Donghun 4:a37c4436b6eb 278 }
Donghun 4:a37c4436b6eb 279 #endif