Honza T. / Mbed 2 deprecated EXAMPLE_Nucleo_mbed_RTOS_test_code

Simple test program to get familiar with functionality of MBED RTOS on ST Nucleo-F411RE. Tasks for LED blinking, user button, temperature measurement with DS1620, temperature measurement with internal temperature sensor of ST32F411RE, ultrasonic distance measurement and displaying result on 16x2 TextLCD.

Dependencies:   DS1620_improved TextLCD_improved mbed-rtos mbed

Files at this revision

API Documentation at this revision

Revision 5:ff77acf7d21d, committed 2015-12-13

Comitter:
dzoni
Date:
Sun Dec 13 06:25:45 2015 +0000
Parent:
4:c163c99d6f89
Child:
6:d1435e38c1b4
Commit message:
Initial commit.

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-rtos.lib Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Sat Dec 12 20:24:37 2015 +0000
+++ b/main.cpp	Sun Dec 13 06:25:45 2015 +0000
@@ -1,45 +1,60 @@
 #include "mbed.h"
+#include "rtos.h"
 #include "DS1620.h"
 #include "TextLCD.h"
 
- 
-DigitalOut myled(LED1);
-
-int main() {
-
-    wait_us(500000);
+TextLCD lcd(PA_8, PA_7, PA_9, PA_1, PB_5, PA_10, TextLCD::LCD16x2);
+    
+DS1620 ds1620Sensor(PB_4, PB_10, PB_3);
 
-    TextLCD lcd(PA_8, PA_7, PA_9, PA_1, PB_5, PA_10, TextLCD::LCD16x2);
-    
-    DS1620 ds1620Sensor(PB_4, PB_10, PB_3);
-    
-    float       temperature;
-    uint32_t    uiCnt=0;
+static float temperature = 0.0f;
+static uint32_t temp_raw = 0;
+static uint32_t uiCnt=0;
+static DigitalOut myled(LED1);
 
+static void initDS1620Temp() {
     ds1620Sensor.setSerialClockFrequency(freq500k);
     if ((ds1620Sensor.readConfig() & 0x03) != 0x03) {
         ds1620Sensor.writeConfig(0x03);
     }
+}
 
-    while(1) {   
+void temp_thread(void const *args) {
+    while (1) {
         myled = myled ^ 1; 
+        ds1620Sensor.startConversion();
     
-        ds1620Sensor.startConversion();
-
         // Wait for conversion completion (Tconv = 750 ms typ)
-        wait_us(750000);
+        Thread::wait(750);
         while (!(ds1620Sensor.readConfig() & 0x80))
-            wait_us(10000);
-        
+            Thread::wait(10);
+                
         temperature = ds1620Sensor.getHighResolutionTemperature();
-        
+        temp_raw = ds1620Sensor.readTemperatureRaw();
+    }
+}
+
+void disp_thread(void const *args) {
+    while (1) {
         lcd.cls();
-        lcd.printf("Raw: %u", ds1620Sensor.readTemperatureRaw());
-        uiCnt += 1;
+        lcd.printf("Raw: %u", temp_raw);
+        uiCnt += 2;
         lcd.locate(0, 1);    
         lcd.printf("Float: %3.2f%cC", temperature, 0xdf);
         
-        wait_us(250000);
+        Thread::wait(1900);
     }
 }
+
+int main() {
+    
+    Thread::wait(1000);
+
+    initDS1620Temp();
+    
+    Thread dispThread(disp_thread, NULL, osPriorityNormal);
+    Thread tempThread(temp_thread, NULL, osPriorityNormal);
+
+    Thread::wait(osWaitForever);
+}
  
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos.lib	Sun Dec 13 06:25:45 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed-rtos/#c825593ece39