Haoran Xiao
By Michael Wasko and Haoran Xiao
Dependencies: MAG3110 MMA8451Q SLCD TSI mbed
Revision 0:792bc968c89f, committed 2014-02-12
- Comitter:
- HaoranX
- Date:
- Wed Feb 12 22:11:23 2014 +0000
- Commit message:
- v1
Changed in this revision
diff -r 000000000000 -r 792bc968c89f MAG3110.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAG3110.lib Wed Feb 12 22:11:23 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/SomeRandomBloke/code/MAG3110/#cf40601402b7
diff -r 000000000000 -r 792bc968c89f MMA8451Q.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MMA8451Q.lib Wed Feb 12 22:11:23 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/JoKer/code/MMA8451Q/#2d14600116fc
diff -r 000000000000 -r 792bc968c89f SLCD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SLCD.lib Wed Feb 12 22:11:23 2014 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/Sissors/code/SLCD/#f70873bc6121
diff -r 000000000000 -r 792bc968c89f TSI.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TSI.lib Wed Feb 12 22:11:23 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/vsluiter/code/TSI/#4dc2f5a3a731
diff -r 000000000000 -r 792bc968c89f main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Feb 12 22:11:23 2014 +0000
@@ -0,0 +1,190 @@
+#include "mbed.h"
+#include "MMA8451Q.h"
+#include "MAG3110.h"
+#include "TSISensor.h"
+#include "SLCD.h"
+
+#define ACC_ID 0
+#define MAG_ID 1
+#define ADC_ID 2
+#define TSI_ID 3
+#define NUM_OF_SENSOR 4
+
+union Serial_Float{
+ float f;
+ char bt[4];
+};
+
+union Serial_Int{
+ int i;
+ char bt[4];
+};
+
+typedef union _data {
+ float f;
+ char s[4];
+} myData;
+
+Serial pc(USBTX, USBRX);
+MMA8451Q acc(PTE25,PTE24,0x1d<<1);
+MAG3110 mag(PTE25,PTE24);
+AnalogIn adc(PTE30);
+TSISensor tsi;
+SLCD slcd;
+DigitalOut led2(LED2);
+bool sirq_flags[NUM_OF_SENSOR] = {0}; // interrupt flags
+int SR = 0; // total sampling rate
+
+void send(float data, int id);
+void send(int data, int id);
+void read_cmd();
+void display(int val);
+
+Ticker acc_timer;
+Ticker mag_timer;
+Ticker adc_timer;
+Ticker tsi_timer;
+void acc_timer_irq();
+void mag_timer_irq();
+void adc_timer_irq();
+void tsi_timer_irq();
+
+// initial sampling frequency:
+float sp_freq[NUM_OF_SENSOR] = {1,1,1,1};
+// current sensor states:
+int sp_flag[NUM_OF_SENSOR] = {0};
+
+int main(){
+ // Initialize sampling rate for display
+ SR = 3*sp_freq[0]*sp_flag[0]+sp_freq[1]*sp_flag[1]+sp_freq[2]*sp_flag[2]+sp_freq[3]*sp_flag[3];
+ led2 = 1;
+ // set baud rate to 460800
+ pc.baud(460800);
+ // display current sampling rate on LCD
+ display(SR);
+ while(1){
+ // check requests, execute and clear
+ if(sirq_flags[ACC_ID]){
+ send(acc.getAccX(),0);
+ send(acc.getAccY(),1);
+ send(acc.getAccZ(),2);
+ sirq_flags[ACC_ID] = 0;
+ }
+ if(sirq_flags[MAG_ID]){
+ send(mag.readVal(0x1d),3);
+ sirq_flags[MAG_ID] = 0;
+ }
+ if(sirq_flags[ADC_ID]){
+ send(float(adc.read()*3.3),4);
+ sirq_flags[ADC_ID] = 0;
+ }
+ if(sirq_flags[TSI_ID]){
+ send(tsi.readPercentage(),5);
+ sirq_flags[TSI_ID] = 0;
+ }
+ if(pc.readable()){
+ read_cmd();
+ // refresh current sampling rate after the command is read:
+ SR = 3*sp_freq[0]*sp_flag[0]+sp_freq[1]*sp_flag[1]+sp_freq[2]*sp_flag[2]+sp_freq[3]*sp_flag[3];
+ display(SR);
+ }
+ }
+}
+
+// interrupt functions for each ticker
+void acc_timer_irq(){
+ sirq_flags[ACC_ID] = 1;
+}
+void mag_timer_irq(){
+ sirq_flags[MAG_ID] = 1;
+}
+void adc_timer_irq(){
+ sirq_flags[ADC_ID] = 1;
+}
+void tsi_timer_irq(){
+ sirq_flags[TSI_ID] = 1;
+}
+
+// serial write (overloaded with different data type)
+void send(float data,int id){
+ Serial_Float srdata;
+ srdata.f = data;
+ for(int i = 0; i < 4; i++)
+ pc.putc(srdata.bt[i]);
+ pc.putc('0'+id);
+}
+void send(int data, int id){
+ Serial_Int srdata;
+ srdata.i = data;
+ for(int i = 0; i < 4; i++)
+ pc.putc(srdata.bt[i]);
+ pc.putc('0'+id);
+}
+
+// read command
+void read_cmd(){
+ __disable_irq();
+ led2 = !led2;
+ char op; char id; myData freq;
+ while(pc.readable()){//Flush input
+ pc.getc();
+ }
+ pc.putc('r'); //confirm ready
+ op = pc.getc(); // get operation
+ id = pc.getc(); // get sensor id
+ if(op == 'c') {
+ if (id == '0'){
+ acc_timer.detach();
+ sp_flag[ACC_ID] = 0;
+ }
+ else if (id == '1'){
+ mag_timer.detach();
+ sp_flag[MAG_ID] = 0;
+ }
+ else if (id == '2'){
+ adc_timer.detach();
+ sp_flag[ADC_ID] = 0;
+ }
+ else if (id == '3'){
+ tsi_timer.detach();
+ sp_flag[TSI_ID] = 0;
+ }
+ }
+ if(op == 'o') {
+ for (int i=0; i<4; i++) {
+ freq.s[i] = pc.getc();
+ }
+ switch(id){
+ case '0':
+ sp_freq[0] = freq.f;
+ acc_timer.attach(&acc_timer_irq, 1.0/freq.f);
+ sp_flag[ACC_ID] = 1;
+ break;
+ case '1':
+ sp_freq[1] = freq.f;
+ mag_timer.attach(&mag_timer_irq, 1.0/freq.f);
+ sp_flag[MAG_ID] = 1;
+ break;
+ case '2':
+ sp_freq[2] = freq.f;
+ adc_timer.attach(&adc_timer_irq, 1.0/freq.f);
+ sp_flag[ADC_ID] = 1;
+ break;
+ case '3':
+ sp_freq[3] = freq.f;
+ tsi_timer.attach(&tsi_timer_irq, 1.0/freq.f);
+ sp_flag[TSI_ID] = 1;
+ break;
+ }
+ }
+ led2 = !led2;
+ __enable_irq();
+}
+
+// LCD function
+void display(int val){
+ char buf[16];
+ sprintf(buf,"%d%d%d",val/100,(val%100)/10,val%10);
+ slcd.printf(buf);
+ slcd.Home();
+}
\ No newline at end of file
diff -r 000000000000 -r 792bc968c89f mbed.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.lib Wed Feb 12 22:11:23 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/#824293ae5e43