Controlador PID Genérico que se parametriza por medio de un encoder rotatorio- Sp (Set-point), Kp(Ganancia proporcional) ,Ki(Constante integral), Kd(Constante Derivativa), usa dos pulsadores adicionales
Dependencies: QEI TextLCD mbed
Este programa es un control PID genérico que se parametriza usando un encoder manual. Se puede ajustar. Set-Point Kp Ki Kd
Emplea el pulsador central del encoder para cambiar de parámetro y otro adicional para consolidar los parámetros y ejecutar el controlador
Se puede probar por medio de un sistema de primer orden conformado por una red RC. de 11K y un condensador de 22uF desde la salida hasta la entrada. que se ve en el mini protoboard de la figura siguiente
a continuación mostramos la respuesta del controlador PID a esos parámetros trabajando en lazo cerrado. que da cero error
Donde se ve, Error (Er), Medida(Me), Setpoint(Sp), Control o salida(Co) de voltaje.
Se aprecia la izquierda el encoder manual y en la entrada análoga se aplicó un anillo de ferrita o balum; ya que estas entradas análogas son muy sensibles al ruido.
Abajo se aprecia el esquemático. Las conexiones del LCD se deducen de los listados de programa y de la guia del CookBook de esta webb, en la parte de LCD.
Si quiere ver la respuesta del sistema a cambios de carga, coloque de forma temporal una resistencia de 100K en paralelo con el condensador de 22uF.
Bug del esquemático (intercambie los puertos de los dos pulsadores)
main.cpp@1:058b8f5c135d, 2016-04-24 (annotated)
- Committer:
- tony63
- Date:
- Sun Apr 24 18:32:52 2016 +0000
- Revision:
- 1:058b8f5c135d
- Parent:
- 0:4e0dfcf0e7ce
Control PID gen?rico que se parametriza con un encoder rotatorio. Todos los c?lculos se procesan en coma flotante. Se imprimen sin cifras significativas por dificultades de impresi?n en la LCD.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
tony63 | 0:4e0dfcf0e7ce | 1 | #include "mbed.h" |
tony63 | 0:4e0dfcf0e7ce | 2 | #include "QEI.h" |
tony63 | 0:4e0dfcf0e7ce | 3 | #include "TextLCD.h" |
tony63 | 0:4e0dfcf0e7ce | 4 | |
tony63 | 0:4e0dfcf0e7ce | 5 | TextLCD lcd(PTB10, PTB11, PTE2, PTE3, PTE4, PTE5); // rs, e, d4-d7 |
tony63 | 0:4e0dfcf0e7ce | 6 | QEI encoder (PTA13, PTD5, NC, 624); |
tony63 | 1:058b8f5c135d | 7 | AnalogIn y(PTB3);//entrada analoga |
tony63 | 0:4e0dfcf0e7ce | 8 | AnalogOut u(PTE30);//salida analoga OJO solo se le pueden drenar 1.5mA en circuitos use un Buffer |
tony63 | 0:4e0dfcf0e7ce | 9 | //si se ignora esto se arruina la FRDMKL25Z |
tony63 | 0:4e0dfcf0e7ce | 10 | DigitalOut led1(LED1); |
tony63 | 0:4e0dfcf0e7ce | 11 | DigitalOut led2(LED2); |
tony63 | 0:4e0dfcf0e7ce | 12 | DigitalOut led3(LED3); |
tony63 | 0:4e0dfcf0e7ce | 13 | |
tony63 | 0:4e0dfcf0e7ce | 14 | DigitalIn button3(PTC16);//cambia ingreso de los 4 parametros |
tony63 | 0:4e0dfcf0e7ce | 15 | DigitalIn button4(PTC17);//termina y consolida valores de 4 parametros y sale del loop |
tony63 | 0:4e0dfcf0e7ce | 16 | |
tony63 | 0:4e0dfcf0e7ce | 17 | |
tony63 | 0:4e0dfcf0e7ce | 18 | //codigos movimiento del curzor |
tony63 | 0:4e0dfcf0e7ce | 19 | |
tony63 | 0:4e0dfcf0e7ce | 20 | //int C1=0x0E; // solo muestra el curzor |
tony63 | 0:4e0dfcf0e7ce | 21 | int C2=0x18; // desplaza izquierda |
tony63 | 0:4e0dfcf0e7ce | 22 | int C3=0x1A; // desplaza derecha |
tony63 | 0:4e0dfcf0e7ce | 23 | int C4=0x0C; // quito cursor bajo |
tony63 | 0:4e0dfcf0e7ce | 24 | |
tony63 | 0:4e0dfcf0e7ce | 25 | int C1=0x0F; |
tony63 | 1:058b8f5c135d | 26 | int cambio=0, diferencia=0; |
tony63 | 1:058b8f5c135d | 27 | float pid,o,ai,ad,ap,med,err; |
tony63 | 1:058b8f5c135d | 28 | float err_v; |
tony63 | 0:4e0dfcf0e7ce | 29 | int spnum=0,kinum=0,kpnum=0,kdnum=0,pos=1; |
tony63 | 0:4e0dfcf0e7ce | 30 | |
tony63 | 0:4e0dfcf0e7ce | 31 | int main() |
tony63 | 0:4e0dfcf0e7ce | 32 | { |
tony63 | 0:4e0dfcf0e7ce | 33 | lcd.locate(0,1); |
tony63 | 0:4e0dfcf0e7ce | 34 | lcd.printf("**Control PID**"); |
tony63 | 0:4e0dfcf0e7ce | 35 | wait(2); |
tony63 | 0:4e0dfcf0e7ce | 36 | lcd.cls(); // Borrar Pantalla |
tony63 | 0:4e0dfcf0e7ce | 37 | lcd.writeCommand(C1);//escribimos un comando segun el manual del modulo LCD |
tony63 | 0:4e0dfcf0e7ce | 38 | |
tony63 | 0:4e0dfcf0e7ce | 39 | lcd.locate(8,0); |
tony63 | 0:4e0dfcf0e7ce | 40 | lcd.printf("Kp=%d",kpnum); |
tony63 | 0:4e0dfcf0e7ce | 41 | lcd.locate(0,1); |
tony63 | 0:4e0dfcf0e7ce | 42 | lcd.printf("Ki=%d",kinum); |
tony63 | 0:4e0dfcf0e7ce | 43 | lcd.locate(8,1); |
tony63 | 0:4e0dfcf0e7ce | 44 | lcd.printf("Kd=%d",kdnum); |
tony63 | 0:4e0dfcf0e7ce | 45 | lcd.locate(0,0); |
tony63 | 0:4e0dfcf0e7ce | 46 | lcd.printf("Sp=%d",spnum); |
tony63 | 0:4e0dfcf0e7ce | 47 | |
tony63 | 0:4e0dfcf0e7ce | 48 | while(1) |
tony63 | 0:4e0dfcf0e7ce | 49 | { |
tony63 | 0:4e0dfcf0e7ce | 50 | //lcd.locate(8,0); |
tony63 | 0:4e0dfcf0e7ce | 51 | //lcd.printf("Kp=%d",encoder.getPulses()); |
tony63 | 0:4e0dfcf0e7ce | 52 | //wait(.5); |
tony63 | 0:4e0dfcf0e7ce | 53 | |
tony63 | 0:4e0dfcf0e7ce | 54 | diferencia=encoder.getPulses()-cambio; |
tony63 | 0:4e0dfcf0e7ce | 55 | cambio=encoder.getPulses(); |
tony63 | 0:4e0dfcf0e7ce | 56 | |
tony63 | 0:4e0dfcf0e7ce | 57 | if (diferencia==0) |
tony63 | 0:4e0dfcf0e7ce | 58 | { |
tony63 | 0:4e0dfcf0e7ce | 59 | //nada |
tony63 | 0:4e0dfcf0e7ce | 60 | } |
tony63 | 0:4e0dfcf0e7ce | 61 | else if(diferencia>0) |
tony63 | 0:4e0dfcf0e7ce | 62 | { |
tony63 | 0:4e0dfcf0e7ce | 63 | if(pos==1) |
tony63 | 0:4e0dfcf0e7ce | 64 | { |
tony63 | 1:058b8f5c135d | 65 | if(spnum+diferencia>=999) |
tony63 | 0:4e0dfcf0e7ce | 66 | { |
tony63 | 1:058b8f5c135d | 67 | spnum=999; |
tony63 | 0:4e0dfcf0e7ce | 68 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 69 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 70 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 71 | lcd.printf("%d", spnum); |
tony63 | 0:4e0dfcf0e7ce | 72 | } |
tony63 | 0:4e0dfcf0e7ce | 73 | else |
tony63 | 0:4e0dfcf0e7ce | 74 | { |
tony63 | 0:4e0dfcf0e7ce | 75 | spnum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 76 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 77 | lcd.printf("%d", spnum); |
tony63 | 0:4e0dfcf0e7ce | 78 | } |
tony63 | 0:4e0dfcf0e7ce | 79 | } |
tony63 | 0:4e0dfcf0e7ce | 80 | else if(pos==2) |
tony63 | 0:4e0dfcf0e7ce | 81 | { |
tony63 | 1:058b8f5c135d | 82 | if(kpnum+diferencia>=999) |
tony63 | 0:4e0dfcf0e7ce | 83 | { |
tony63 | 1:058b8f5c135d | 84 | kpnum=999; |
tony63 | 0:4e0dfcf0e7ce | 85 | lcd.locate(11,0); |
tony63 | 0:4e0dfcf0e7ce | 86 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 87 | lcd.locate(11,0); |
tony63 | 0:4e0dfcf0e7ce | 88 | lcd.printf("%d", kpnum); |
tony63 | 0:4e0dfcf0e7ce | 89 | } |
tony63 | 0:4e0dfcf0e7ce | 90 | else |
tony63 | 0:4e0dfcf0e7ce | 91 | { |
tony63 | 0:4e0dfcf0e7ce | 92 | kpnum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 93 | lcd.locate(11,0); |
tony63 | 0:4e0dfcf0e7ce | 94 | lcd.printf("%d", kpnum); |
tony63 | 0:4e0dfcf0e7ce | 95 | } |
tony63 | 0:4e0dfcf0e7ce | 96 | } |
tony63 | 0:4e0dfcf0e7ce | 97 | else if(pos==3) |
tony63 | 0:4e0dfcf0e7ce | 98 | { |
tony63 | 1:058b8f5c135d | 99 | if(kinum+diferencia>=999) |
tony63 | 0:4e0dfcf0e7ce | 100 | { |
tony63 | 1:058b8f5c135d | 101 | kinum=999; |
tony63 | 0:4e0dfcf0e7ce | 102 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 103 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 104 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 105 | lcd.printf("%d", kinum); |
tony63 | 0:4e0dfcf0e7ce | 106 | } |
tony63 | 0:4e0dfcf0e7ce | 107 | else |
tony63 | 0:4e0dfcf0e7ce | 108 | { |
tony63 | 0:4e0dfcf0e7ce | 109 | kinum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 110 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 111 | lcd.printf("%d", kinum); |
tony63 | 0:4e0dfcf0e7ce | 112 | } |
tony63 | 0:4e0dfcf0e7ce | 113 | } |
tony63 | 0:4e0dfcf0e7ce | 114 | else if(pos==4) |
tony63 | 0:4e0dfcf0e7ce | 115 | { |
tony63 | 1:058b8f5c135d | 116 | if(kdnum+diferencia>=999) |
tony63 | 0:4e0dfcf0e7ce | 117 | { |
tony63 | 1:058b8f5c135d | 118 | kdnum=999; |
tony63 | 0:4e0dfcf0e7ce | 119 | lcd.locate(11,1); |
tony63 | 0:4e0dfcf0e7ce | 120 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 121 | lcd.locate(11,1); |
tony63 | 0:4e0dfcf0e7ce | 122 | lcd.printf("%d", kdnum); |
tony63 | 0:4e0dfcf0e7ce | 123 | } |
tony63 | 0:4e0dfcf0e7ce | 124 | else |
tony63 | 0:4e0dfcf0e7ce | 125 | { |
tony63 | 0:4e0dfcf0e7ce | 126 | kdnum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 127 | lcd.locate(11,1); |
tony63 | 0:4e0dfcf0e7ce | 128 | lcd.printf("%d", kdnum); |
tony63 | 0:4e0dfcf0e7ce | 129 | } |
tony63 | 0:4e0dfcf0e7ce | 130 | } |
tony63 | 0:4e0dfcf0e7ce | 131 | } |
tony63 | 0:4e0dfcf0e7ce | 132 | |
tony63 | 0:4e0dfcf0e7ce | 133 | else if(diferencia<0) |
tony63 | 0:4e0dfcf0e7ce | 134 | { |
tony63 | 0:4e0dfcf0e7ce | 135 | if(pos==1) |
tony63 | 0:4e0dfcf0e7ce | 136 | { |
tony63 | 0:4e0dfcf0e7ce | 137 | if(spnum+diferencia<0) |
tony63 | 0:4e0dfcf0e7ce | 138 | { |
tony63 | 0:4e0dfcf0e7ce | 139 | //No ocurre nada |
tony63 | 0:4e0dfcf0e7ce | 140 | } |
tony63 | 0:4e0dfcf0e7ce | 141 | else |
tony63 | 0:4e0dfcf0e7ce | 142 | { |
tony63 | 0:4e0dfcf0e7ce | 143 | spnum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 144 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 145 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 146 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 147 | lcd.printf("%d", spnum); |
tony63 | 0:4e0dfcf0e7ce | 148 | } |
tony63 | 0:4e0dfcf0e7ce | 149 | } |
tony63 | 0:4e0dfcf0e7ce | 150 | else if(pos==2) |
tony63 | 0:4e0dfcf0e7ce | 151 | { |
tony63 | 0:4e0dfcf0e7ce | 152 | if(kpnum+diferencia<0) |
tony63 | 0:4e0dfcf0e7ce | 153 | { |
tony63 | 0:4e0dfcf0e7ce | 154 | //No ocurre nada |
tony63 | 0:4e0dfcf0e7ce | 155 | } |
tony63 | 0:4e0dfcf0e7ce | 156 | else |
tony63 | 0:4e0dfcf0e7ce | 157 | { |
tony63 | 0:4e0dfcf0e7ce | 158 | kpnum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 159 | lcd.locate(11,0); |
tony63 | 0:4e0dfcf0e7ce | 160 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 161 | lcd.locate(11,0); |
tony63 | 0:4e0dfcf0e7ce | 162 | lcd.printf("%d", kpnum); |
tony63 | 0:4e0dfcf0e7ce | 163 | } |
tony63 | 0:4e0dfcf0e7ce | 164 | } |
tony63 | 0:4e0dfcf0e7ce | 165 | else if(pos==3) |
tony63 | 0:4e0dfcf0e7ce | 166 | { |
tony63 | 0:4e0dfcf0e7ce | 167 | if(kinum+diferencia<0) |
tony63 | 0:4e0dfcf0e7ce | 168 | { |
tony63 | 0:4e0dfcf0e7ce | 169 | //No ocurre nada |
tony63 | 0:4e0dfcf0e7ce | 170 | } |
tony63 | 0:4e0dfcf0e7ce | 171 | else |
tony63 | 0:4e0dfcf0e7ce | 172 | { |
tony63 | 0:4e0dfcf0e7ce | 173 | kinum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 174 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 175 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 176 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 177 | lcd.printf("%d", kinum); |
tony63 | 0:4e0dfcf0e7ce | 178 | } |
tony63 | 0:4e0dfcf0e7ce | 179 | } |
tony63 | 0:4e0dfcf0e7ce | 180 | else if(pos==4) |
tony63 | 0:4e0dfcf0e7ce | 181 | { |
tony63 | 0:4e0dfcf0e7ce | 182 | if(kdnum+diferencia<0) |
tony63 | 0:4e0dfcf0e7ce | 183 | { |
tony63 | 0:4e0dfcf0e7ce | 184 | //No ocurre nada |
tony63 | 0:4e0dfcf0e7ce | 185 | } |
tony63 | 0:4e0dfcf0e7ce | 186 | else |
tony63 | 0:4e0dfcf0e7ce | 187 | { |
tony63 | 0:4e0dfcf0e7ce | 188 | kdnum+=diferencia; |
tony63 | 0:4e0dfcf0e7ce | 189 | lcd.locate(11,1); |
tony63 | 0:4e0dfcf0e7ce | 190 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 191 | lcd.locate(11,1); |
tony63 | 0:4e0dfcf0e7ce | 192 | lcd.printf("%d", kdnum); |
tony63 | 0:4e0dfcf0e7ce | 193 | } |
tony63 | 0:4e0dfcf0e7ce | 194 | } |
tony63 | 0:4e0dfcf0e7ce | 195 | } |
tony63 | 0:4e0dfcf0e7ce | 196 | |
tony63 | 0:4e0dfcf0e7ce | 197 | if (!button3) //cambia la posicion de ingreso de parametros |
tony63 | 0:4e0dfcf0e7ce | 198 | { |
tony63 | 0:4e0dfcf0e7ce | 199 | led3 =!led3; |
tony63 | 0:4e0dfcf0e7ce | 200 | if(pos==4) |
tony63 | 0:4e0dfcf0e7ce | 201 | { |
tony63 | 0:4e0dfcf0e7ce | 202 | pos=1; |
tony63 | 0:4e0dfcf0e7ce | 203 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 204 | lcd.printf("%d", spnum); |
tony63 | 0:4e0dfcf0e7ce | 205 | } |
tony63 | 0:4e0dfcf0e7ce | 206 | else if (pos==1) |
tony63 | 0:4e0dfcf0e7ce | 207 | { |
tony63 | 0:4e0dfcf0e7ce | 208 | pos++; |
tony63 | 0:4e0dfcf0e7ce | 209 | lcd.locate(11,0); |
tony63 | 0:4e0dfcf0e7ce | 210 | lcd.printf("%d", kpnum); |
tony63 | 0:4e0dfcf0e7ce | 211 | } |
tony63 | 0:4e0dfcf0e7ce | 212 | else if(pos==2) |
tony63 | 0:4e0dfcf0e7ce | 213 | { |
tony63 | 0:4e0dfcf0e7ce | 214 | pos++; |
tony63 | 0:4e0dfcf0e7ce | 215 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 216 | lcd.printf("%d", kinum); |
tony63 | 0:4e0dfcf0e7ce | 217 | } |
tony63 | 0:4e0dfcf0e7ce | 218 | else if(pos==3) |
tony63 | 0:4e0dfcf0e7ce | 219 | { |
tony63 | 0:4e0dfcf0e7ce | 220 | pos++; |
tony63 | 0:4e0dfcf0e7ce | 221 | lcd.locate(11,1); |
tony63 | 0:4e0dfcf0e7ce | 222 | lcd.printf("%d", kdnum); |
tony63 | 0:4e0dfcf0e7ce | 223 | } |
tony63 | 0:4e0dfcf0e7ce | 224 | wait(0.25); |
tony63 | 0:4e0dfcf0e7ce | 225 | |
tony63 | 0:4e0dfcf0e7ce | 226 | } |
tony63 | 0:4e0dfcf0e7ce | 227 | |
tony63 | 0:4e0dfcf0e7ce | 228 | if (!button4) |
tony63 | 0:4e0dfcf0e7ce | 229 | { |
tony63 | 0:4e0dfcf0e7ce | 230 | break; //sale del bucle si pisan suiche4 |
tony63 | 0:4e0dfcf0e7ce | 231 | } |
tony63 | 0:4e0dfcf0e7ce | 232 | wait(0.1); |
tony63 | 0:4e0dfcf0e7ce | 233 | } |
tony63 | 0:4e0dfcf0e7ce | 234 | |
tony63 | 0:4e0dfcf0e7ce | 235 | |
tony63 | 0:4e0dfcf0e7ce | 236 | //Transicion |
tony63 | 0:4e0dfcf0e7ce | 237 | lcd.writeCommand(C4);//escribimos un comando segun el manual del modulo LCD para quitar cursor bajo |
tony63 | 0:4e0dfcf0e7ce | 238 | lcd.cls(); //borra la pantalla |
tony63 | 0:4e0dfcf0e7ce | 239 | lcd.printf(" GUARDADOS!"); |
tony63 | 0:4e0dfcf0e7ce | 240 | wait(1); |
tony63 | 0:4e0dfcf0e7ce | 241 | lcd.cls(); |
tony63 | 0:4e0dfcf0e7ce | 242 | lcd.printf(" INICIA EL PID"); |
tony63 | 0:4e0dfcf0e7ce | 243 | wait(1); |
tony63 | 0:4e0dfcf0e7ce | 244 | // se imprimen los parches del control ***************************************** |
tony63 | 0:4e0dfcf0e7ce | 245 | lcd.cls(); |
tony63 | 1:058b8f5c135d | 246 | lcd.printf("Er=%3.0f",err); |
tony63 | 0:4e0dfcf0e7ce | 247 | lcd.locate(8,0); |
tony63 | 1:058b8f5c135d | 248 | lcd.printf("Me=%3.0f",med); |
tony63 | 0:4e0dfcf0e7ce | 249 | lcd.locate(0,1); |
tony63 | 1:058b8f5c135d | 250 | lcd.printf("Sp=%3.0f",spnum); |
tony63 | 0:4e0dfcf0e7ce | 251 | lcd.locate(8,1); |
tony63 | 1:058b8f5c135d | 252 | lcd.printf("Co=%3.0f",pid); |
tony63 | 1:058b8f5c135d | 253 | wait(1); |
tony63 | 0:4e0dfcf0e7ce | 254 | |
tony63 | 0:4e0dfcf0e7ce | 255 | // CICLO PRINCIPAL CONTROLADOR PID |
tony63 | 1:058b8f5c135d | 256 | lop1: med = y.read()*999; |
tony63 | 0:4e0dfcf0e7ce | 257 | err = (spnum-med); //se calcula el error |
tony63 | 1:058b8f5c135d | 258 | ap = kpnum*err*0.01f; //se calcula la accion proporcinal |
tony63 | 1:058b8f5c135d | 259 | ai =(kinum*err*0.01f)+ai; //calculo de la integral del error |
tony63 | 1:058b8f5c135d | 260 | ad = kdnum*(err-err_v)*0.01f; //calculo de la accion derivativa |
tony63 | 0:4e0dfcf0e7ce | 261 | pid = (ap+ai+ad); |
tony63 | 0:4e0dfcf0e7ce | 262 | // se verifica que pid sea positivo ************************************** |
tony63 | 0:4e0dfcf0e7ce | 263 | if(pid<=0) |
tony63 | 0:4e0dfcf0e7ce | 264 | { |
tony63 | 0:4e0dfcf0e7ce | 265 | pid=0; |
tony63 | 0:4e0dfcf0e7ce | 266 | } |
tony63 | 0:4e0dfcf0e7ce | 267 | |
tony63 | 0:4e0dfcf0e7ce | 268 | // se verifica que pid sea menor o igual la valor maximo ***************** |
tony63 | 0:4e0dfcf0e7ce | 269 | if (pid > 999) |
tony63 | 0:4e0dfcf0e7ce | 270 | { |
tony63 | 0:4e0dfcf0e7ce | 271 | pid=999; |
tony63 | 0:4e0dfcf0e7ce | 272 | } |
tony63 | 0:4e0dfcf0e7ce | 273 | |
tony63 | 1:058b8f5c135d | 274 | |
tony63 | 0:4e0dfcf0e7ce | 275 | //se muestran las variables****************************************** |
tony63 | 0:4e0dfcf0e7ce | 276 | lcd.locate(3,0); |
tony63 | 0:4e0dfcf0e7ce | 277 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 278 | lcd.locate(3,0); |
tony63 | 1:058b8f5c135d | 279 | lcd.printf("%3.0f",err); |
tony63 | 0:4e0dfcf0e7ce | 280 | lcd.locate(11,0); |
tony63 | 1:058b8f5c135d | 281 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 282 | lcd.locate(11,0); |
tony63 | 1:058b8f5c135d | 283 | lcd.printf("%3.0f",med); |
tony63 | 0:4e0dfcf0e7ce | 284 | lcd.locate(3,1); |
tony63 | 1:058b8f5c135d | 285 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 286 | lcd.locate(3,1); |
tony63 | 0:4e0dfcf0e7ce | 287 | lcd.printf("%d",spnum); |
tony63 | 0:4e0dfcf0e7ce | 288 | lcd.locate(11,1); |
tony63 | 1:058b8f5c135d | 289 | lcd.printf(" "); |
tony63 | 0:4e0dfcf0e7ce | 290 | lcd.locate(11,1); |
tony63 | 1:058b8f5c135d | 291 | lcd.printf("%3.0f",pid); |
tony63 | 1:058b8f5c135d | 292 | |
tony63 | 1:058b8f5c135d | 293 | |
tony63 | 1:058b8f5c135d | 294 | |
tony63 | 0:4e0dfcf0e7ce | 295 | |
tony63 | 0:4e0dfcf0e7ce | 296 | //Normalizacion de la salida |
tony63 | 1:058b8f5c135d | 297 | // se actualizan las variables ******************************************* |
tony63 | 1:058b8f5c135d | 298 | err_v = err; |
tony63 | 1:058b8f5c135d | 299 | o = pid/999; |
tony63 | 1:058b8f5c135d | 300 | u.write(o); |
tony63 | 0:4e0dfcf0e7ce | 301 | // se envia el valor pid a puerto analogico de salida (D/A) ************** |
tony63 | 1:058b8f5c135d | 302 | |
tony63 | 0:4e0dfcf0e7ce | 303 | // se repite el ciclo |
tony63 | 1:058b8f5c135d | 304 | wait_ms(300); |
tony63 | 1:058b8f5c135d | 305 | goto lop1; |
tony63 | 0:4e0dfcf0e7ce | 306 | } |