FOURNET Olivier
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WIZwiki-W7500_ADC_Sampling
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Dependencies: SDFileSystem STATIC_COLORS WIZnetInterface mbed
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WIZwiki-W7500_ADC
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FOURNET Olivier
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main.cpp
00001 #include "mbed.h" 00002 #include "EthernetInterface.h" 00003 #include "SDFileSystem.h" 00004 #include <stdio.h> 00005 #include <string.h> 00006 00007 #define USE_DHCP 1 00008 /* 00009 MAC Address Details ( http://www.macvendorlookup.com/ ) 00010 Company Wiznet Address 00011 Seoul 135-830 00012 Nonyhun, Kangnam 00013 KOREA, REPUBLIC OF 00014 Range : 00:08:DC:00:00:00 - 00:08:DC:FF:FF:FF 00015 Type : MA-L: IEEE MAC Address Large (24-bit block size) 00016 */ 00017 //#define MAC "\x31\x41\x59\x26\x53\x58" 00018 #define MAC "\x00\x08\xDC\x31\x41\x59" 00019 //#define MAC "\x00\x08\xDC\x11\x34\x78" 00020 #define IP "192.168.0.170" 00021 #define MASK "255.255.255.0" 00022 #define GATEWAY "192.168.0.254" 00023 00024 #define HTTPD_SERVER_PORT 80 00025 #define HTTPD_MAX_REQ_LENGTH 1023 00026 #define HTTPD_MAX_HDR_LENGTH 255 00027 #define HTTPD_MAX_FNAME_LENGTH 127 00028 #define HTTPD_MAX_DNAME_LENGTH 127 00029 00030 #if defined(TARGET_WIZwiki_W7500) 00031 Serial uart(USBTX, USBRX); 00032 SDFileSystem sd(PB_3, PB_2, PB_1, PB_0, "sd"); // WIZwiki-W7500 00033 #include "static_colors.h" 00034 // LED RED : server listning status 00035 // LED GREEN : socket connecting status Ok 00036 // LED BLUE : socket connecting status Busy 00037 #endif 00038 00039 EthernetInterface eth; 00040 TCPSocketServer server; 00041 TCPSocketConnection client; 00042 00043 char buffer[HTTPD_MAX_REQ_LENGTH+1]; 00044 char httpHeader[HTTPD_MAX_HDR_LENGTH+1]; 00045 char fileName[HTTPD_MAX_FNAME_LENGTH+1]; 00046 char dirName[HTTPD_MAX_DNAME_LENGTH+1]; 00047 char *uristr; 00048 char *eou; 00049 char *qrystr; 00050 00051 FILE *fp; 00052 int rdCnt; 00053 00054 // Initialize a pins to perform analog input and digital output fucntions 00055 AnalogIn ain0(A0); 00056 AnalogIn ain1(A1); 00057 AnalogIn ain2(A2); 00058 AnalogIn ain3(A3); 00059 00060 float a0_f, a1_f, a2_f, a3_f; 00061 00062 #define __IP_LOCAL__ IP 00063 #define __hebergement__ "http://olivier.fournet.free.fr/" 00064 #define __Time_between_page_refresh__ "1" 00065 //#include <hebergement.h> 00066 00067 int refresh = 1; // 1 second refresh 00068 00069 #define NB_SAMPLES_GPH 10 00070 unsigned long int Sample_gph = 0; 00071 float adc_samples[NB_SAMPLES_GPH];// = { 0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.01,1.02,1.03,1.04 }; 00072 float time_samples[NB_SAMPLES_GPH];// = { -0.1,2,3,4,5,6,7,8,9,10,11,12,13,14 }; 00073 float x_min = 0.0, x_max = 0.0; 00074 float y_min = 0.0, y_max = 0.0; 00075 float Seconds = 0.0; 00076 //float meas = 0.0; 00077 00078 //------------ 00079 #define __Time_tic_in_Second__ 0.1 00080 00081 Ticker time_tic; 00082 00083 //------------ 00084 00085 #define FREQUENCE_SECTEUR 50 00086 #define NB_SAMPLES_PAR_OSCILLATION 100 00087 #define NB_SAMPLES FREQUENCE_SECTEUR * NB_SAMPLES_PAR_OSCILLATION // 5000 // FREQUENCE_SECTEUR * NB_SAMPLES_PAR_OSCILLATION 00088 #define TIME_SAMPLES_us 1000000 / NB_SAMPLES // 200 // 1000000 / NB_SAMPLES 00089 unsigned long int Samples = 0; 00090 00091 float time_between_two_measurement_ADC = 0.0; 00092 float meas, meas_sum, meas_moy, meas_min, meas_max; 00093 float vdc, vdc_min, vdc_max; 00094 float vac, pow2_vac, sum_pow2_vac, veff; 00095 00096 Ticker time_measurement_ADC; 00097 00098 void measurement_ADC(void) 00099 { 00100 float meas_moy_t, veff_t; // valeurs temporaires 00101 00102 meas = 3.3 * ain0.read(); // Converts and read the analog input value (value from 0.0 to 1.0) 00103 //wait_us(10); 00104 meas_sum += meas; 00105 if(meas_min > meas) meas_min = meas; 00106 if(meas_max < meas) meas_max = meas; 00107 00108 vac = meas - 1.650; // 0V AC = 3,3V/2 00109 pow2_vac = vac * vac; // valeur VAC au carré 00110 sum_pow2_vac += pow2_vac; // somme des valeurs AC au carré 00111 00112 Samples++; 00113 00114 if( Samples == NB_SAMPLES ) 00115 { 00116 // VDC 00117 meas_moy_t = meas_sum; 00118 meas_moy = meas_moy_t / (float)NB_SAMPLES; 00119 // VAC 00120 veff_t = sum_pow2_vac; 00121 veff_t = veff_t / (float)NB_SAMPLES; 00122 veff = sqrt(veff_t); 00123 00124 Samples = 0; 00125 meas_sum = 0.0; 00126 vdc_min = meas_min, vdc_max = meas_max; 00127 meas_min = 3.3 , meas_max = 0.0; 00128 sum_pow2_vac = 0.0; 00129 } 00130 } 00131 00132 void init_ADC_sampling(void) 00133 { 00134 //------------- 00135 meas_moy = 0.0; 00136 Samples = 0; 00137 meas_sum = 0.0; 00138 meas_min = 3.3 , meas_max = 0.0; 00139 sum_pow2_vac = 0.0; 00140 //----------------- 00141 // 50 Hz --> 20ms 00142 // 100 samples par oscillations = 20 / 100 = 0.2ms = 200µs 00143 // 100 samples * 50 oscillations = 5000 samples au total par secondes 00144 // interval: 200 micro seconds chaques samples 00145 time_measurement_ADC.attach_us(&measurement_ADC, TIME_SAMPLES_us); 00146 } 00147 //------------ 00148 00149 void add_one_tic() 00150 { 00151 int i; 00152 00153 Seconds = Seconds + (float)__Time_tic_in_Second__; 00154 00155 // mesures ADC --> measurement_ADC(); 00156 /* 00157 meas = ain0.read(); // Converts and read the analog input value (value from 0.0 to 1.0) 00158 meas = meas * 3.3; // Change the value to be in the 0 to 3300 range 00159 */ 00160 x_min = x_max = Seconds; 00161 y_min = y_max = meas_moy; //meas; 00162 00163 for(i = 1 ; i < NB_SAMPLES_GPH ; i++) 00164 { 00165 time_samples[i-1] = time_samples[i]; 00166 adc_samples[i-1] = adc_samples[i]; 00167 if( time_samples[i] < x_min ) x_min = time_samples[i]; 00168 if( time_samples[i] > x_max ) x_max = time_samples[i]; 00169 if( adc_samples[i] < y_min ) y_min = adc_samples[i]; 00170 if( adc_samples[i] > y_max ) y_max = adc_samples[i]; 00171 } 00172 00173 adc_samples[NB_SAMPLES_GPH-1] = meas_moy; //meas; 00174 time_samples[NB_SAMPLES_GPH-1] = Seconds; 00175 } 00176 //------------ 00177 00178 Ticker ledTick; 00179 00180 char *pch; 00181 char ext[5]; 00182 char ext_gif[] = "gif"; 00183 char ext_jpg[] = "jpg"; 00184 char ext_png[] = "png"; 00185 char ext_tiff[] = "tiff"; 00186 int pos_ext; 00187 int extLen; 00188 00189 void ledTickfunc() 00190 { 00191 led_r = !led_r; 00192 } 00193 00194 void printf_send_client(const char *str_c) 00195 { 00196 char http_send[HTTPD_MAX_REQ_LENGTH+1]; 00197 sprintf(http_send,str_c); 00198 client.send(http_send,strlen(http_send)); 00199 } 00200 00201 #include "WIZwiki_W7500_Interactivity_css.h" 00202 #include "WIZwiki_W7500_Interactivity_js.h" 00203 00204 void variables(void) 00205 { 00206 printf_send_client("<SCRIPT script language=\"javascript\" type=\"text/javascript\">\r\n"); 00207 00208 a0_f = ain0.read()*3.3; 00209 sprintf(httpHeader,"A0 = %3.3f;\r\n", a0_f); 00210 client.send(httpHeader,strlen(httpHeader)); 00211 00212 a1_f = ain1.read()*3.3; 00213 sprintf(httpHeader,"A1 = %3.3f;\r\n", a1_f); 00214 client.send(httpHeader,strlen(httpHeader)); 00215 00216 a2_f = ain2.read()*3.3; 00217 sprintf(httpHeader,"A2 = %3.3f;\r\n", a2_f); 00218 client.send(httpHeader,strlen(httpHeader)); 00219 00220 a3_f = ain3.read()*3.3; 00221 sprintf(httpHeader,"A3 = %3.3f;\r\n", a3_f); 00222 client.send(httpHeader,strlen(httpHeader)); 00223 00224 printf_send_client("</SCRIPT>\r\n"); 00225 } 00226 00227 void ETAT(void) 00228 { 00229 int i; 00230 00231 // httpHeader 00232 printf_send_client("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n"); 00233 00234 // Début page Web 00235 printf_send_client("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\r\n"); 00236 // meta_refresh 00237 sprintf(httpHeader,"<meta http-equiv=\"refresh\" content=\"" __Time_between_page_refresh__ ";url=http://%s/\">\r\n", eth.getIPAddress() ); 00238 //sprintf(httpHeader,"<meta http-equiv=\"refresh\" content=\"1;url=http://%s/\">\r\n", eth.getIPAddress() ); 00239 //sprintf(httpHeader,"<meta http-equiv=\"refresh\" content=\"%u;url=http://%s/\">\r\n", refresh, eth.getIPAddress() ); 00240 client.send(httpHeader,strlen(httpHeader)); 00241 00242 printf_send_client("<html><head>\r\n"); 00243 // title 00244 printf_send_client("<title>WIZwiki-W7500 - Flot Examples: Interactivity</title>\r\n"); 00245 printf_send_client("<LINK REL=\"SHORTCUT ICON\" type=\"image/x-icon\" href=\"" __hebergement__ "favicon.ico\">\r\n<link rel=\"icon\" href=\"" __hebergement__ "favicon.ico\" type=\"image/x-icon\">\r\n"); 00246 // CSS 00247 CSS(); 00248 // JavaScript Interactivity 00249 init_WIZwiki_W7500_Interactivity_JS(); 00250 WIZwiki_W7500_Interactivity_JS(); 00251 /*sprintf(httpHeader,"<script language=\"javascript\" type=\"text/javascript\" src=\"" __hebergement__ "electronique/e/WIZwiki-W7500/js/WIZwiki-W7500_Interactivity_init.js\"></script>\r\n"); 00252 client.send(httpHeader,strlen(httpHeader)); 00253 */ 00254 //printf_send_client("<script language=\"javascript\" type=\"text/javascript\">init_WIZwiki_W7500_Interactivity();</script>\r\n"); 00255 00256 // Variables JavaScript 00257 printf_send_client("<script language=\"javascript\" type=\"text/javascript\">\r\n"); 00258 printf_send_client("var color_Y = \"#FF0000\";\r\n"); 00259 printf_send_client("var label_Y = \"Meas Moy (V)\";\r\n"); 00260 // sprintf(httpHeader, "var x_min = -0.5, x_max = 14.5, y_min = -0.5, y_max = 1.5;\r\n"); // TEST 00261 sprintf(httpHeader, "var x_min = %.1f, x_max = %.1f, y_min = %.1f, y_max = %.1f;\r\n", x_min, x_max, y_min, y_max); 00262 client.send(httpHeader,strlen(httpHeader)); 00263 00264 // sprintf(httpHeader, "var array_value = [[-0.1,0.1],[2,0.2],[3,0.3],[4,0.4],[5,0.5],[6,0.6],[7,0.7],[8,0.8],[9,0.9],[10,1],[11,1.01],[12,1.02],[13,1.03],[14,1.04]];\r\n"); // TEST 00265 // client.send(httpHeader,strlen(httpHeader)); // TEST 00266 00267 if(Sample_gph > NB_SAMPLES_GPH) 00268 { 00269 printf_send_client("var array_value = ["); 00270 00271 for(i = 0 ; i < NB_SAMPLES_GPH ; i++) 00272 { 00273 if(i < NB_SAMPLES_GPH-1) sprintf(httpHeader, "[%.1f,%.1f],", time_samples[i], adc_samples[i]); 00274 else sprintf(httpHeader, "[%.1f,%.1f]", time_samples[i], adc_samples[i]); 00275 client.send(httpHeader,strlen(httpHeader)); 00276 } 00277 printf_send_client("];\r\n"); 00278 } 00279 00280 Sample_gph++; 00281 printf_send_client("</script>\r\n"); 00282 00283 // <SCRIPT> 00284 variables(); 00285 // <FIN SCRIPT> 00286 // Fin Variable JavaScript 00287 printf_send_client("</head><body><center>\r\n"); 00288 00289 sprintf(httpHeader,"<h2>WIZwiki-W7500 - mBED</h2> ( Compiled at : %s and %s )<p>\r\n", __DATE__ , __TIME__); 00290 client.send(httpHeader,strlen(httpHeader)); 00291 00292 printf_send_client("<p>(<a href=\"http://www.flotcharts.org/flot/examples/interacting/index.html\">Flot Examples: Interactivity</a>)<p>\r\n"); 00293 00294 printf_send_client("ETAT :<p>\r\n"); 00295 00296 sprintf(httpHeader,"IP: %s, MASK: %s, GW: %s<p>\r\n", 00297 eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway()); 00298 client.send(httpHeader,strlen(httpHeader)); 00299 00300 sprintf(httpHeader,"˜A0 : %3.3fV , \r\n", a0_f); 00301 client.send(httpHeader,strlen(httpHeader)); 00302 00303 sprintf(httpHeader,"˜A1 : %3.3fV , \r\n", a1_f); 00304 client.send(httpHeader,strlen(httpHeader)); 00305 00306 sprintf(httpHeader,"˜A2 : %3.3fV , \r\n", a2_f); 00307 client.send(httpHeader,strlen(httpHeader)); 00308 00309 sprintf(httpHeader,"˜A3 : %3.3fV<p>\r\n", a3_f); 00310 client.send(httpHeader,strlen(httpHeader)); 00311 00312 sprintf(httpHeader, "ADC (A0) :<p>DC : %.3fVmoy ( sum : %.3f - Samples : %u )<br>\r\n", meas_moy, meas_sum, Samples); 00313 client.send(httpHeader,strlen(httpHeader)); 00314 00315 sprintf(httpHeader, "DC (0 à 3,3V) : %.3fVmin, %.3fVmax , Vdiff : %.0fmV<br>\r\n", vdc_min, vdc_max, 1000.0*(vdc_max - vdc_min)); 00316 client.send(httpHeader,strlen(httpHeader)); 00317 00318 sprintf(httpHeader, "AC (-1,65V à 1,65V) : %.3fVeff<p>\r\n", veff); 00319 client.send(httpHeader,strlen(httpHeader)); 00320 00321 sprintf(httpHeader, "Time : %.1f Seconds - Sample Graphique : %u<p>\r\n", Seconds, Sample_gph);// diplays the human readable Seconds 00322 client.send(httpHeader,strlen(httpHeader)); 00323 00324 WIZwiki_W7500_Interactivity_div(); 00325 //printf_send_client("<p><script language=\"javascript\" type=\"text/javascript\">WIZwiki_W7500_Interactivity();</script><p>\r\n"); 00326 00327 printf_send_client("<p><p><a href=\"..\">Root</a>\r\n"); 00328 00329 printf_send_client("</center></body></html>\r\n"); 00330 } 00331 00332 //-------------------------------------------- 00333 00334 int main(void) 00335 { 00336 // initialisation des variables 00337 int i; 00338 00339 init_ADC_sampling(); 00340 //----------------- 00341 00342 for(i = 0 ; i < NB_SAMPLES_GPH ; i++) 00343 { 00344 time_samples[i] = 0; 00345 adc_samples[i] = 0.0; 00346 } 00347 // Init the ticker with the address of the function (add_one_second) to be attached and the interval (1000 ms) 00348 time_tic.attach(&add_one_tic, __Time_tic_in_Second__); 00349 //-------------- 00350 ledTick.attach(&ledTickfunc,0.5); 00351 // Serial Interface eth; 00352 // Serial port configuration (valeurs par defaut) : 9600 baud, 8-bit data, no parity, stop bit 00353 uart.baud(9600); 00354 uart.format(8, SerialBase::None, 1); 00355 uart.printf("Initializing\n"); 00356 wait(1.0); 00357 // Check File System 00358 uart.printf("Checking File System\n"); 00359 DIR *d = opendir("/sd/"); 00360 if(d != NULL) 00361 { 00362 uart.printf("SD Card Present\n"); 00363 } 00364 else 00365 { 00366 uart.printf("SD Card Root Directory Not Found\n"); 00367 } 00368 wait(1.0); 00369 // EthernetInterface eth; 00370 uart.printf("Initializing Ethernet\n"); 00371 #if USE_DHCP 00372 //eth.init Use DHCP 00373 int ret = eth.init((uint8_t*)MAC); // Use DHCP for WIZnetInterface 00374 uart.printf("Connecting DHCP\n"); 00375 #else 00376 int ret = eth.init((uint8_t*)MAC,IP,MASK,GATEWAY); //IP,mask,Gateway 00377 uart.printf("Connecting (IP,mask,Gateway)\n"); 00378 #endif 00379 wait(1.0); 00380 // Check Ethernet Link-Done 00381 uart.printf("Check Ethernet Link\r\n"); 00382 00383 if(eth.link() == true) 00384 { 00385 uart.printf("- Ethernet PHY Link - Done\r\n"); 00386 //led_r = LED_ON; 00387 COLOR(_RED_); 00388 } 00389 else 00390 { 00391 uart.printf("- Ethernet PHY Link - Fail\r\n"); 00392 //led_r = LED_OFF; 00393 COLOR(_BLACK_); 00394 } 00395 wait(1.0); 00396 if(!ret) 00397 { 00398 uart.printf("Initialized, MAC: %s\r\n", eth.getMACAddress()); 00399 ret = eth.connect(); 00400 00401 if(!ret) 00402 { 00403 uart.printf("IP: %s, MASK: %s, GW: %s\r\n", 00404 eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway()); 00405 // led_b = LED_ON, led_g = LED_ON; 00406 COLOR(_CYAN_); 00407 } 00408 else 00409 { 00410 uart.printf("Error ethernet.connect() - ret = %d\r\n", ret); 00411 //led_b = LED_OFF; 00412 COLOR(_BLUE_); 00413 exit(0); 00414 } 00415 } 00416 else 00417 { 00418 uart.printf("Error ethernet.init() - ret = %d\r\n", ret); 00419 //led_b = LED_OFF; 00420 COLOR(_BLACK_); 00421 exit(0); 00422 } 00423 wait(1.0); 00424 // TCPSocketServer server; 00425 server.bind(HTTPD_SERVER_PORT); 00426 server.listen(); 00427 uart.printf("Server Listening\n"); 00428 00429 while(true) 00430 { 00431 uart.printf("\nWait for new connection...\r\n"); 00432 server.accept(client); 00433 client.set_blocking(false, 1500); // Timeout after (1.5)s 00434 00435 uart.printf("Connection from: %s\r\n", client.get_address()); 00436 while(true) 00437 { 00438 //led_g = LED_ON; 00439 COLOR(_GREEN_); 00440 int n = client.receive(buffer, sizeof(buffer)); 00441 if(n <= 0) break; 00442 uart.printf("Recieved Data: %d\r\n\r\n%.*s\r\n",n,n,buffer); 00443 if(n >= 1024) 00444 { 00445 sprintf(httpHeader,"HTTP/1.1 413 Request Entity Too Large \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); 00446 client.send(httpHeader,strlen(httpHeader)); 00447 client.send(buffer,n); 00448 break; 00449 } 00450 else 00451 { 00452 buffer[n]=0; 00453 } 00454 if(!strncmp(buffer, "GET ", 4)) 00455 { 00456 uristr = buffer + 4; 00457 eou = strstr(uristr, " "); 00458 if(eou == NULL) 00459 { 00460 sprintf(httpHeader,"HTTP/1.1 400 Bad Request \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); 00461 client.send(httpHeader,strlen(httpHeader)); 00462 client.send(buffer,n); 00463 } 00464 else 00465 { 00466 *eou = 0; 00467 //get_file(uristr); 00468 ETAT(); 00469 } 00470 } 00471 } 00472 //led_g = LED_OFF; 00473 COLOR(_BLACK_); 00474 client.close(); 00475 } 00476 }
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