Diff: main.cpp

Revision:

0:63c74ee8bffc

Child:

1:c896654c679b

diff -r 000000000000 -r 63c74ee8bffc main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jan 26 12:00:55 2018 +0000
@@ -0,0 +1,74 @@
+#include "mbed.h"
+
+/*
+   This basic example just shows how to read the ADC internal channels raw values.
+   Please look in the corresponding device reference manual for a complete
+   description of how to make a temperature sensor, VBat or Vref measurement.
+*/
+
+Serial pc(SERIAL_TX,SERIAL_RX);
+Serial rs485(D1,D0);
+AnalogIn adc_1(A1);
+AnalogIn adc_2(A2);
+//AnalogIn adc_3(A3);
+//AnalogIn adc_4(A4);
+//AnalogIn adc_5(A5);
+//AnalogIn adc_6(A6);
+//AnalogIn adc_7(A7);
+
+DigitalOut led(LED1);
+//DigitalIn in1(PA_1,PullNone);
+//DigitalIn in2(PA_3,PullNone);
+
+
+int main()
+{
+    float sum1,sum2;
+    float ad1,ad2;
+    float temp,turb,s;
+    int i,cnt;
+
+    rs485.baud(38400);
+    rs485.format(8,Serial::None,1);    
+
+    pc.printf("\nSTM32 ADC internal channels reading example\r\n");
+    temp = 0;
+    turb = 0;
+    s = 0;
+    while(1) {
+        sum1 = 0;
+        sum2 = 0;
+        cnt = 0;
+        for (i=0;i<1000;i++) {
+            sum1 += adc_1.read();
+            sum2 += adc_2.read();
+            cnt += 1;
+            wait(0.001);
+
+            if (rs485.readable()) {
+                pc.printf("%c\r",rs485.getc());
+                wait(0.01);
+                rs485.printf("=01,PVAL,%01.04f,%01.03f,%01.03f\r", turb/1000,temp,s);
+            }
+        }
+        if(cnt != 0) {
+            ad1 = sum1/cnt;
+            ad2 = sum2/cnt;
+        } else {
+            ad1 = adc_1.read();
+            ad2 = adc_2.read();
+        }
+        
+        pc.printf("ADC 1 = %f ad %f mV : %f temp\r\n", ad1,ad1*3300,ad1*66-30+0.3);
+        pc.printf("ADC 2 = %f ad %f mA : %f turb\r\n", ad2,(ad2*3.3/2.74)*20,(ad2-0.166)/0.6642*1000+25.5);
+        temp = ad1*66-30+0.3;
+        turb = 2.1*((ad2-0.166)/0.6642*1000+25.5);
+        s = 0;
+        
+//        if (rs485.readable()) {
+//            pc.printf("%c\r",rs485.getc());
+//            wait(0.01);
+//            rs485.printf("=01,PVAL,%01.03f,%01.03f,%01.03f\r", temp,turb,s);
+//        }
+    }
+}