Diff: main.cpp

Revision:

0:af4af28f0975

diff -r 000000000000 -r af4af28f0975 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jan 10 11:32:26 2017 +0000
@@ -0,0 +1,189 @@
+#include "mbed.h"
+#include "LCD12864.h"
+
+DigitalOut myled(PB_1);
+DigitalIn Senslev(PA_8);
+
+Serial RFData(PA_2, PA_3);//was PA_2,PA_3
+//Serial pc(USBTX,USBRX);
+SPI QCOUNT(PB_5, PB_4, PB_3);
+Timer Duty;
+Timer Cycle;
+int Td,T;
+LCD12864RSPI mylcd;
+
+float Store[10];
+float Average(float* array);
+char TxtBuf[17] = "Hier staat niets";
+int n = 0;
+//************
+// Circular buffers for serial TX and RX data - used by interrupt routines
+extern const int buffer_size = 255;
+// might need to increase buffer size for high baud rates
+extern char tx_buffer[buffer_size+1];
+extern char rx_buffer[buffer_size+1];
+// Circular buffer pointers
+// volatile makes read-modify-write atomic 
+extern volatile int tx_in;
+extern volatile int tx_out;
+extern volatile int rx_in;
+extern volatile int rx_out;
+// Line buffers for sprintf and sscanf
+extern char tx_line[80];
+extern char rx_line[80];
+extern void read_line(void);
+//*************
+void Catch(void)
+{
+    myled=1;
+// Loop just in case more than one character is in UART's receive FIFO buffer
+// Stop if buffer full
+    while ((RFData.readable()) && (((rx_in + 1) % buffer_size) != rx_out)) {
+        rx_buffer[rx_in] = RFData.getc();
+// Uncomment to Echo to USB serial to watch data flow
+//        monitor_device.putc(rx_buffer[rx_in]);
+        rx_in = (rx_in + 1) % buffer_size;
+    }
+    myled=0;
+    return;
+
+}
+/*
+   // get the current time from the terminal
+    struct tm t;
+    printf("Enter current date and time:\n");
+    printf("YYYY MM DD HH MM SS[enter]\n");
+    scanf("%d %d %d %d %d %d", &t.tm_year, &t.tm_mon, &t.tm_mday
+                             , &t.tm_hour, &t.tm_min, &t.tm_sec);
+
+    // adjust for tm structure required values
+    t.tm_year = t.tm_year - 1900;
+    t.tm_mon = t.tm_mon - 1;
+
+    // set the time
+    set_time(mktime(&t));
+
+    // display the time
+    while(1) {
+        time_t seconds = time(NULL);
+        printf("Time as a basic string = %s", ctime(&seconds));
+        wait(1);
+    }
+
+int tm_sec //seconds after the minute – [0, 60][@1]    (public member object)
+int tm_min  //minutes after the hour – [0, 59]    (public member object)
+int tm_hour //hours since midnight – [0, 23]    (public member object)
+int tm_mday //day of the month – [1, 31]    (public member object)
+int tm_mon  //months since January – [0, 11]    (public member object)
+int tm_year //years since 1900    (public member object)
+int tm_wday //days since Sunday – [0, 6]    (public member object)
+int tm_yday //days since January 1 – [0, 365]
+int tm_isdst    //Daylight Saving Time flag. The value is positive if DST is in effect, zero if
+                       //not and negative if no information is available    (public member object)
+*/
+struct tm t;
+
+int main()
+{
+    QCOUNT.format(8,0);         //dac 13bit, res = 8192
+    QCOUNT.frequency(10000);
+    
+    RFData.format(8,SerialBase::None, 1);
+    RFData.baud(4800);
+    
+    t.tm_sec = 00;
+    t.tm_min = 17;
+    t.tm_hour = 15;
+    t.tm_mday = 2;
+    t.tm_mon = 0;
+    t.tm_year = 2017 - 1900;
+    t.tm_wday = 1;
+    t.tm_yday = 2;
+    t.tm_isdst = 1;
+
+    char timeBuf[30];
+    char *ptimeBuf = timeBuf;
+    char Buf[16];
+    char *pBuf = Buf;
+    
+    set_time(mktime(&t));
+    time_t seconds = time(NULL);
+    sprintf(ptimeBuf, "%s", ctime(&seconds));
+
+    mylcd.Initialise();  //was initialise
+    mylcd.CLEAR();
+    mylcd.DisplayString(0, 0, "Temperatuur = ", 14);
+    mylcd.DisplayString(2, 0, ptimeBuf, 11);
+    mylcd.DisplayString(3, 0, ptimeBuf + 11 , 13);
+
+    wait_ms(100);
+
+    int i = 0;
+    strcpy(rx_buffer, TxtBuf);
+    RFData.attach(&Catch, Serial::RxIrq);
+    __enable_irq();
+    rx_in = 0;
+    while(1) {
+        
+/*
+        while (Senslev) {}; //synchrounise level rise
+
+        while (!Senslev) {};
+        Duty.start();
+        Cycle.start();
+
+
+        while (Senslev) {};
+        Duty.stop();
+        Td = Duty.read_us();
+        Duty.reset();
+
+        while (!Senslev) {};
+        Cycle.stop();
+        T = Cycle.read_us();
+        Cycle.reset();
+
+        Store[i] = 212.77f * Td/T - 68.08f;
+        wait(1);//was 10
+        myled = !myled;
+        i++;
+
+        //do temp calculation
+        //......
+        if(i == 10) {
+
+
+            float temp = Average(Store);
+
+
+            sprintf(pBuf, "%2.2f", temp);
+            *(pBuf + 5) = ' ';  //symbol graden chinees
+            *(pBuf + 6) = 'C';
+            *(pBuf + 7) = '\0';
+
+            time_t seconds = time(NULL);
+            sprintf(ptimeBuf, "%s", ctime(&seconds));
+            mylcd.DisplayString(1, 0, pBuf, strlen(pBuf));
+//            mylcd.DisplayString(2, 0, ptimeBuf, 11);
+            mylcd.DisplayString(3, 0, ptimeBuf + 11 , 13);
+
+            i = 0;
+        }
+*/
+
+
+//            read_line();
+            mylcd.DisplayString(2, 0, rx_line, 16);//strlen(pBuf));
+            
+    }
+}
+
+float Average(float* array)
+{
+    float Result = 0;
+
+    for(int i = 0; i < 10; i++)
+        Result += *(array + i);
+
+    return Result/10;
+}
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