Revision 0:e0aff383209c, committed 2014-06-24

Comitter:

macht

Date:

Tue Jun 24 04:46:43 2014 +0000

Commit message:

touch panel program for agic workshop

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Sinwave.lib	Tue Jun 24 04:46:43 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/macht/code/Sinwave/#e934e95962bd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jun 24 04:46:43 2014 +0000
@@ -0,0 +1,144 @@
+#include "mbed.h"
+#include "Sinwave.h"
+
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+Sinwave panel_in(p18,1.0,10000);
+BusOut channel_select(p23,p22,p21);
+AnalogIn panel_out(p20);
+AnalogIn volume(p19);
+PwmOut buzzar(p24);
+//SoftPWM buzzar(p21);
+Serial pc(USBTX,USBRX);
+Ticker sensing_ticker;
+int g_sensing_flag;
+
+void set_sensing_flag(){
+    g_sensing_flag = 1;
+}
+/*
+typedef union{
+    unsigned char byte;
+    struct{
+        unsigned char c:1;
+        unsigned char d:1;
+        unsigned char e:1;
+        unsigned char f:1;
+        unsigned char g:1;     
+    }bit;
+}UN_KEY;*/
+
+int main() {
+    wait(0.5);
+    int channel_state[8];
+    float channel_average[8];
+    float key[8];
+    float thresh[8];
+    //float off_volt[8];
+    int key_index = 9;
+    int last_key_index = 9;
+    //float thresh = 0.95/3.3;
+    float tone = 440.0;
+    int i,j;
+    buzzar.period(tone);
+    buzzar = 0.25;
+    sensing_ticker.attach(&set_sensing_flag,0.10);
+    pc.baud(115200);
+    channel_select = 0;
+    led1 = 0;
+    led2 = 0;
+    
+    key[0] = 1.0/523.51;
+    key[1] = 1.0/587.32;
+    key[2] = 1.0/659.25;
+    key[3] = 1.0/698.45;
+    key[4] = 1.0/783.99;
+    key[5] = 1.0/880.00;
+    key[6] = 1.0/987.5;
+    key[7] = 1.0/1047.0;
+    
+    panel_in.start();
+    channel_select = 0;
+    wait_ms(1);
+    for(i=0;i<8;i++){
+        channel_select = i;
+        wait_ms(1);
+        for(j=0;j<50;j++){
+            wait_us(100);
+            channel_average[i] += panel_out;
+        }
+        channel_average[i] = channel_average[i]/50.0;
+        thresh[i] = channel_average[i];
+        channel_average[i] = 0;
+    }
+    pc.printf("th1:%.2f",thresh[0]*3.3);
+    pc.printf("th2:%.2f",thresh[1]*3.3);
+    pc.printf("th3:%.2f",thresh[2]*3.3);
+    pc.printf("th4:%.2f",thresh[3]*3.3);
+    pc.printf("th5:%.2f",thresh[4]*3.3);
+    pc.printf("th6:%.2f",thresh[5]*3.3);
+    pc.printf("th7:%.2f",thresh[6]*3.3);
+    pc.printf("th8:%.2f\r\n",thresh[7]*3.3);
+
+    while(1) {
+        if(g_sensing_flag == 1){
+            key_index = 9;
+            for(int i=0;i<8;i++){
+                channel_select = i;
+                wait_ms(1);
+                //thresh[i] = volume;
+                for(int j=0;j<50;j++){
+                    wait_us(100);
+                    channel_average[i] += panel_out;
+                }
+                channel_average[i] = channel_average[i]/50.0;
+                //if(channel_average[i]*3.3 < thresh[i]){
+                if(channel_average[i] < thresh[i] * (0.6 + volume.read()*0.4)){
+                    channel_state[i] = 1;
+                    key_index = i;
+                }else{
+                    channel_state[i] = 0;  
+                }
+            }
+            if(key_index == 9){
+                   buzzar = 0.0;
+                   
+            }else{
+                   if(last_key_index != key_index){
+                        buzzar.period(key[key_index]);
+                        buzzar = 0.25;
+                    }  
+            }
+            last_key_index = key_index;
+            led1 = channel_state[0]+channel_state[4];
+            led2 = channel_state[1]+channel_state[5];
+            led3 = channel_state[2]+channel_state[6];
+            led4 = channel_state[3]+channel_state[7];
+            pc.printf("volume:%.2f",volume.read());
+            
+            
+            pc.printf("ch1:%.2f",channel_average[0]*3.3);
+            pc.printf("ch2:%.2f",channel_average[1]*3.3);
+            pc.printf("ch3:%.2f",channel_average[2]*3.3);
+            pc.printf("ch4:%.2f",channel_average[3]*3.3);
+            pc.printf("ch5:%.2f",channel_average[4]*3.3);
+            pc.printf("ch6:%.2f",channel_average[5]*3.3);
+            pc.printf("ch7:%.2f",channel_average[6]*3.3);
+            pc.printf("ch8:%.2f\r\n",channel_average[7]*3.3);
+            
+            channel_average[0] = 0;
+            channel_average[1] = 0;
+            channel_average[2] = 0;
+            channel_average[3] = 0;
+            channel_average[4] = 0;
+            channel_average[5] = 0;
+            channel_average[6] = 0;
+            channel_average[7] = 0;
+            g_sensing_flag = 0;
+        }
+                 
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Jun 24 04:46:43 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/024bf7f99721
\ No newline at end of file