Diff: main.cpp

Revision:

0:96f939ccb440

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jun 29 20:45:04 2020 +0000
@@ -0,0 +1,200 @@
+#include "mbed.h"
+#include "stm32746g_discovery_lcd.h"
+#include "stm32746g_discovery_ts.h"
+#include "logo.h"
+#include <stdlib.h>
+
+
+
+
+#define MCP9808_REG_TEMP (0x05) // Registre de température
+#define MCP9808_REG_CONF (0x01) // Registre de configuration
+#define MCP9808_ADDR     (0x30) // adresse de base 0x18<<1
+
+
+
+//uint16_t TS_StateTypeDef variable ; 
+//uint16_t TS_x = variable.touchX[0]; 
+//uint16_t TS_y = variable.touchY[0];
+
+I2C i2c(D14,D15);
+// sur la carte DISCO (SDA --> D14 ; SCL --> D15)  
+
+DigitalOut myled(LED1);
+
+Serial pc(USBTX, USBRX,115200); // parametres de la liaison série pour affciher les résultats sur l'hype-terminal
+
+
+char TempCelsiusDisplay[] = "+abc.dd C"; // chaine de caracteres de la valeur de température 
+int var = atoi(TempCelsiusDisplay); 
+
+
+// fonction pour afficher le logo de l'iut ajouté sur l'écran LCD
+void drawImage(int offsetX, int offsetY)
+{
+    int x = 0;
+    int y = 0;
+    uint32_t* dataPtr = (uint32_t*)logo.data;
+    while(y < logo.height) {
+        while(x < logo.width) {
+            BSP_LCD_DrawPixel(x + offsetX, y + offsetY, *dataPtr);
+            dataPtr++;
+            x++;
+        }
+        x = 0;
+        y++;
+    }
+}
+
+
+int main()
+{
+    // initialisation de l'écran LCD 
+    
+    uint8_t statu;
+
+    BSP_LCD_Init();
+    BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER, LCD_FB_START_ADDRESS);
+    BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER);
+    
+
+    statu = BSP_TS_Init(BSP_LCD_GetXSize(), BSP_LCD_GetYSize());
+    if (statu != TS_OK) {
+        BSP_LCD_Clear(LCD_COLOR_BLUE);
+        BSP_LCD_SetBackColor(LCD_COLOR_RED);
+        BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
+        
+    } else {
+        BSP_LCD_Clear(LCD_COLOR_GREEN);
+        BSP_LCD_SetBackColor(LCD_COLOR_GREEN);
+        BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
+        
+    }
+    
+    /*BSP_LCD_SetTextColor(LCD_COLOR_RED);
+    BSP_LCD_FillRect(50, 200, 100,50);
+    BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
+    //BSP_LCD_SetBackColor(LCD_COLOR_RED);
+    BSP_LCD_DisplayStringAt(-50, 140, (uint8_t *)"MIN", CENTER_MODE);*/
+    
+    // Création du bouton "Kelvin"
+     
+    BSP_LCD_SetTextColor(LCD_COLOR_RED);
+    BSP_LCD_FillRect(150, 200, 120,50);
+    BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
+    BSP_LCD_SetBackColor(LCD_COLOR_RED);
+    BSP_LCD_DisplayStringAt(-30, 215, (uint8_t *)"Kelvin", CENTER_MODE);
+    
+    
+    
+
+    char data_write[3];
+    char data_read[2];
+    int tempval;
+    //int tempK ; 
+    
+    //tempK = var + 273; 
+    //char nbr = (char)tempK; 
+    //wait(3);
+   
+
+    data_write[0] = MCP9808_REG_CONF;
+    data_write[1] = 0x00;  // config msb
+    data_write[2] = 0x00;  // config lsb
+    
+    int status = i2c.write(MCP9808_ADDR, data_write, 3, 0);
+    if (status != 0) { // Error
+        
+        while (1) {
+            //drawImage(0,0);
+
+
+            myled = !myled;
+            wait(0.2);
+        }
+    }
+
+    while (1) {
+
+
+
+        drawImage(0,1); // emplacement du logo de l'iut sur l'écran LCD 
+        
+        // Read temperature register
+        data_write[0] = MCP9808_REG_TEMP;
+        i2c.write(MCP9808_ADDR, data_write, 1, 1); // no stop
+        i2c.read(MCP9808_ADDR, data_read, 2, 0);
+
+
+
+// check Ta vs Tcrit
+        if((data_read[0] & 0x80)  == 0x80) {
+            //pc.printf(" temp >= critique ");
+        }
+        if((data_read[0] & 0x40) == 0x40) {
+            //pc.printf("   temp > limite superieur ");
+        }
+        if((data_read[0] & 0x20) == 0x20) {
+            //pc.printf(" temp < limite inférieure  ");
+        }
+        if(data_read[0] & 0xE0) {
+            //pc.printf("\r\n");
+            data_read[0] = data_read[0] & 0x1F;  // effacer les bits de drapeau
+        }
+        if((data_read[0] & 0x10) == 0x10) {
+            data_read[0] = data_read[0] & 0x0F;
+            TempCelsiusDisplay[0] = '-';
+            tempval = 256 - (data_read[0] << 4) + (data_read[1] >> 4);
+        } else {
+            TempCelsiusDisplay[0] = '+';
+            tempval = (data_read[0] << 4) + (data_read[1] >> 4);
+        }
+
+        // partie fractionnaire (précision 0.25°C)
+        if (data_read[1] & 0x08) {
+            if(data_read[1] & 0x04) {
+                TempCelsiusDisplay[5] = '7';
+                TempCelsiusDisplay[6] = '5';
+            } else {
+                TempCelsiusDisplay[5] = '5';
+                TempCelsiusDisplay[6] = '0';
+            }
+        } else {
+            if(data_read[1] & 0x04) {
+                TempCelsiusDisplay[5] = '2';
+                TempCelsiusDisplay[6] = '5';
+            } else {
+                TempCelsiusDisplay[5] = '0';
+                TempCelsiusDisplay[6] = '0';
+            }
+        }
+
+        // Partie entière
+        TempCelsiusDisplay[1] = (tempval / 100) + 0x30;
+        TempCelsiusDisplay[2] = ((tempval % 100) / 10) + 0x30;
+        TempCelsiusDisplay[3] = ((tempval % 100) % 10) + 0x30;
+
+        // Affichage du résultat 
+        pc.printf("temperature = %s\r\n", TempCelsiusDisplay); // affichage de la température sur l'hyper-terminal 
+        //pc.printf("temperature = %s\r\n", nbr);
+        
+        HAL_Delay(1000);
+        BSP_LCD_SetFont(&Font12);
+        BSP_LCD_SetFont(&Font20);
+        //sprintf((char*)text, "temperature  : %5.3f cm", TempCelsiusDisplay);
+        BSP_LCD_DisplayStringAt(0, 70, (uint8_t *) "MCP9808 : CAPTEUR DE TEMPERATURE", CENTER_MODE); //message de bienvenue 
+        BSP_LCD_DisplayStringAt(135, 100, (uint8_t *) TempCelsiusDisplay, CENTER_MODE); //affichage de la valeur de température sur l'écran LCD 
+        //BSP_LCD_DisplayStringAt(135, 120, (uint8_t *) nbr, CENTER_MODE);
+        
+        
+        
+        //pc.printf("temperature= %i", tempval);
+        myled = !myled;
+        wait(1.0);
+    }
+
+}
+
+
+
+