Diff: main_temptest.cpp

Revision:

0:584ea5db2696

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main_temptest.cpp	Mon Sep 04 10:15:45 2017 +0000
@@ -0,0 +1,129 @@
+#include "mbed.h"
+#include "PINNAMES_mbed.h"
+#include "SPICOMMANDS.h"
+#include "PROTOTYPES.h"
+#include "TABLES.h"
+
+const int spiBitrate=250000;
+bool arduino_task_done = false;
+uint8_t write_buf [8];
+
+int main() {
+        
+    // initialise write_buf
+    write_buf[0] = 0xAA; //message start
+    write_buf[1] = MEGA1; //chip_ID
+    write_buf[2] = do_nothing; //command
+    write_buf[3] = 0x00;
+    write_buf[4] = 0x00;
+    write_buf[5] = 0x00; //temp device number
+    write_buf[6] = 0x00;
+    write_buf[7] = GetSum();
+    
+    char read_buf [8];
+    for (int i = 0; i < 8; ++i) {
+        read_buf[i] = 0;
+    }
+    
+    while(1) {
+        spi.format(8,3);
+        spi.frequency(spiBitrate);
+        
+        // REQUEST TEMPERATURES
+        write_buf[2] = request_temps;
+        write_buf[7] = GetSum();
+        
+        chipSelect = 0;
+        wait_us(70);
+        for (int i = 0; i < 8; ++i) {
+            spi.write(write_buf[i]);
+        }
+        
+        
+        while (!arduino_task_done) {
+            wait_us(10);
+            for (int i = 0; i < 8; ++i) {
+            read_buf[i] = (uint8_t) spi.write(0xFA);
+            }
+            if (read_buf[6] == 0x01) {
+                //task done
+                arduino_task_done = true;    
+            }
+        } 
+        chipSelect = 1;
+        wait_us(10);
+        
+        
+        //READ PROBE 1
+        write_buf[2] = read_onetemp_only;
+        write_buf[5] = 0x01;
+        write_buf[7] = GetSum();
+        chipSelect = 0;
+        wait_us(70);
+        for (int i = 0; i < 8; ++i) {
+            spi.write(write_buf[i]);
+        }
+        
+        while (!arduino_task_done) {
+            wait_us(10);
+            for (int i = 0; i < 8; ++i) {
+            read_buf[i] = (uint8_t) spi.write(0xFA);
+            }
+            if (read_buf[6] == 0x01) {
+                //task done
+                arduino_task_done = true;    
+            }
+        } 
+        chipSelect = 1;
+        wait_us(10);
+        
+        printf("Response from Arduino is ");
+        for (int i = 0; i < 8; ++i) {
+            printf("%d ", read_buf[i]);
+            //if (read_buf[i] == 32) printf("this is 32");
+            read_buf[i] = 0x00;
+        }
+        printf("\r\n");
+        
+        
+        //READ PROBE 2
+        write_buf[2] = read_onetemp_only;
+        write_buf[5] = 0x02;
+        write_buf[7] = GetSum();
+        chipSelect = 0;
+        wait_us(70);
+        for (int i = 0; i < 8; ++i) {
+            spi.write(write_buf[i]);
+        }
+        
+        while (!arduino_task_done) {
+            wait_us(10);
+            for (int i = 0; i < 8; ++i) {
+            read_buf[i] = (uint8_t) spi.write(0xFA);
+            }
+            if (read_buf[6] == 0x01) {
+                //task done
+                arduino_task_done = true;    
+            }
+        } 
+        
+        chipSelect = 1;
+        wait_us(10);
+        
+        printf("Response from Arduino is ");
+        for (int i = 0; i < 8; ++i) {
+            printf("%d ", read_buf[i]);
+            //if (read_buf[i] == 32) printf("this is 32");
+            read_buf[i] = 0x00;
+        }
+        printf("\r\n");
+        
+        
+        wait(1);
+    }
+
+}
+uint8_t GetSum() {
+    uint8_t sum = write_buf[0] + write_buf[1] + write_buf[2] + write_buf[3] + write_buf[4] + write_buf[5];
+    return sum;
+}
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