Diff: sub.hpp

Revision:

0:418c739a67df

Child:

1:42b57bfcc750

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sub.hpp	Fri Dec 19 06:37:45 2014 +0000
@@ -0,0 +1,121 @@
+unsigned char rxFIFO[256], txFIFO[256], raw_data[6];
+unsigned char rx_top, rx_end, tx_top, tx_end, phase;
+float mean_sum1, mean_sum2, ad_data1[101], ad_data2[101];
+int timer_value[6], max_count, gain, ad_pointer1, ad_pointer2;
+float a1, a2, b1, c0, y1[3], y2[3];
+int notch_1, notch_2;
+float data1, data2, data3;
+const float _60Hz_a1 = 1.936768, _60Hz_a2 = -0.939101, _60Hz_b1 = -1.998579, _60Hz_c0 = 1.642174;
+const float _50Hz_a1 = 1.937188, _50Hz_a2 = -0.939101, _50Hz_b1 = -1.999013, _50Hz_c0 = 1.938304;
+
+RawSerial xbee(PA_2, PA_3);
+Ticker timer_setup;
+AnalogIn analog_value0(A0);
+AnalogIn analog_value1(A1);
+AnalogIn analog_value2(A2);
+AnalogIn analog_value3(A3);
+DigitalOut myled(LED1);
+
+void sum_clear(){
+    int i;
+    for (i=0; i<101; i++) ad_data1[i] = ad_data2[i] = 0;
+    ad_pointer1 = ad_pointer2 = mean_sum1 = mean_sum2 = 0;
+}
+
+void coef_set(int herz){
+    if(herz < 55){
+        a1 = _50Hz_a1;
+        a2 = _50Hz_a2;
+        b1 = _50Hz_b1;
+        c0 = _50Hz_c0;
+    }
+    else{
+        a1 = _60Hz_a1;
+        a2 = _60Hz_a2;
+        b1 = _60Hz_b1;
+        c0 = _60Hz_c0;
+    }
+    for (int i=0; i<3; i++) y1[i] = y2[i] = 0;
+}
+void common_setup(){
+    rx_top = rx_end = tx_top = tx_end = phase = 0;
+    max_count = 100;
+    gain = 5;
+    sum_clear();
+    notch_1 = notch_2 = 60;
+    coef_set(60);
+}
+
+void timer_interrupt(){
+    int i;
+    for (i=0; i<6; i++) timer_value[i]++;
+}
+
+void tx_fifo_check(){
+    if(xbee.writeable() == 1){
+        if(tx_top != tx_end){
+            xbee.putc(txFIFO[tx_end]);
+            ++tx_end &= 255;
+        }
+    }
+}
+
+int rx_fifo_check(){
+    unsigned char data;
+    if(rx_top != rx_end){
+        data = rxFIFO[rx_end];
+        ++rx_end &= 255;
+        if (data < 33){
+            phase = 0;
+            return(1);
+        }
+        raw_data[phase] = data;
+        if(++phase > 5) phase = 0;
+        return(0);
+    }
+    return(0);
+}
+
+void rx_fifoset(void){
+    rxFIFO[rx_top] = xbee.getc();
+    ++rx_top &= 255;
+}
+
+void tx_fifoset(unsigned char data){
+    txFIFO[tx_top] = data;
+    ++tx_top &= 255;
+}
+
+unsigned char hex_conv(unsigned char data){
+    data &= 15;
+    if(data < 10) return(data+48);
+    else return(data+55);
+}
+
+unsigned char conv_hex(unsigned char data){
+    if((data > 47) && (data < 58)) return(data-48);
+    else if((data > 64) && (data < 71)) return(data-55);
+    return(0);
+}
+
+void tx_message(int data){
+    int i;
+    for (i=0; i<6; i++) tx_fifoset(hex_conv((data>>(4*(5-i))) & 15));
+    tx_fifoset(13);
+}
+
+float move_mean_calc1(float data){
+    mean_sum1 = mean_sum1 - ad_data1[ad_pointer1] + data;
+    ad_data1[ad_pointer1] = data;
+    ad_pointer1++;
+    if(ad_pointer1 == max_count) ad_pointer1 = 0;
+    return(mean_sum1 / (float)max_count);
+}
+
+float move_mean_calc2(float data){
+    mean_sum2 = mean_sum2 - ad_data2[ad_pointer2] + data;
+    ad_data2[ad_pointer2] = data;
+    ad_pointer2++;
+    if(ad_pointer2 == max_count) ad_pointer2 = 0;
+    return(mean_sum2 / (float)max_count);
+}