Diff: main.cpp

Revision:

0:0f48b5222d3d

Child:

1:980bb838fa61

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 15 16:28:49 2020 +0000
@@ -0,0 +1,69 @@
+#include "mbed.h"
+#include "stm32746g_discovery_lcd.h"
+#include "DS1820.h"
+
+#define     MAX_SENSOSRS   1 
+
+Thread thread;
+volatile float       temp = 0;
+ 
+void oneWireThread() {
+    DS1820*     ds1820[MAX_SENSOSRS];
+    DigitalOut  led(LED1);
+    OneWire     oneWire(D8); 
+    int         sensorsFound = 0;
+    
+    printf("OneWireThread Starting...\n");
+
+    for (sensorsFound = 0; sensorsFound < MAX_SENSOSRS; sensorsFound++) {
+        ds1820[sensorsFound] = new DS1820(&oneWire);
+        if (!ds1820[sensorsFound]->begin()) {
+            delete ds1820[sensorsFound];
+            break;
+        }
+    }
+ 
+    if(sensorsFound != 0) {
+        printf("Found %d DS1820 sensors.\n", sensorsFound);
+        while (1) {
+            printf("----------------\r\n");
+            for (int i = 0; i < sensorsFound; i++)
+                ds1820[i]->startConversion();       // start temperature conversion from analog to digital
+            ThisThread::sleep_for(1000);                         // let DS1820 sensors complete the temperature conversion
+            for (int i = 0; i < sensorsFound; i++) {
+                if (ds1820[i]->isPresent())
+                    temp = ds1820[i]->read();
+                    printf("temp[%d] = %3.1f%cC\r\n", i, temp, 176); // read temperature
+            }
+            ThisThread::sleep_for(5000);  
+        }
+    }else{
+        printf("No DS1820 sensor found!\r\n");        
+    }
+}
+
+int main()
+{
+    printf("Starting\n");
+    thread.start(oneWireThread);
+    char buffer[20]= {0};
+    HAL_Delay(500);
+    BSP_LCD_Init();
+    BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER, LCD_FB_START_ADDRESS);
+    BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER);
+    BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
+    HAL_Delay(500);
+
+    while(1){
+        BSP_LCD_Clear(LCD_COLOR_BLACK);
+        BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
+        BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
+        BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"MBED", CENTER_MODE);
+        BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
+        BSP_LCD_DisplayStringAt(0, 100, (uint8_t *)"DISCOVERY STM32F746NG", CENTER_MODE);
+        sprintf (buffer, "temp = %3.1fC", temp);
+        BSP_LCD_DisplayStringAt(20, 175, (uint8_t *)buffer, LEFT_MODE);  
+        HAL_Delay(2000);//ThisThread::sleep_for(1000);  //not working
+        
+    }  
+}