Yan Wang
/
SingleLoop
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Revision 0:7e2659f4155c, committed 2010-11-30
- Comitter:
- phyllis
- Date:
- Tue Nov 30 22:13:29 2010 +0000
- Commit message:
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Nov 30 22:13:29 2010 +0000
@@ -0,0 +1,178 @@
+#include "mbed.h"
+
+char* readstring(char* add);
+int touchSense( );
+char readkey( );
+
+Serial pc(USBTX, USBRX);
+AnalogIn input0(p20);
+AnalogIn input1(p17);
+DigitalIn charger0(p19);
+DigitalIn charger1(p16);
+DigitalOut ground0(p18);
+DigitalOut ground1(p15);
+
+int main() {
+ char hstr[100];
+ char ustr[100];
+ char* sadd = &hstr[0];
+ char* eadd;
+ char key;
+ int len, i, j;
+ eadd = readstring(sadd);
+ len = eadd - sadd;
+ for (i = 0; i <= len; i++)
+ pc.printf("%c", hstr[i]);
+ pc.printf("\n");
+ for (i = 0; i <= len; i++){
+ while (1){
+ key = readkey( );
+ if (key == 'e')
+ pc.printf("TOUCH ERROR!");
+ else if ( key == '0' || key == '1')
+ break;
+ wait(0.005);
+ }
+ pc.printf("%c\n", key);
+ ustr[i] = key;
+ }
+ i = len;
+ while (1){
+ for (j = 0; j<= len; j++){
+ if (hstr[j] != ustr[(i+j+1) % (len+1)])
+ break;
+ }
+ if (j == len+1)
+ pc.printf("MATCH!");
+ if ( i == len )
+ i = 0;
+ else
+ i++;
+ while (1){
+ key = readkey( );
+ if (key == 'e')
+ pc.printf("TOUCH ERROR!");
+ else if ( key == '0' || key == '1')
+ break;
+ wait(0.005);
+ }
+ pc.printf("%c\n", key);
+ ustr[i] = key;
+ }
+}
+
+char* readstring(char* add)
+{
+ char x;
+ int flag = 0;
+ while(1){
+ if (pc.readable()){
+ x = pc.getc();
+ if (x=='S' && flag == 0)
+ flag = 1;
+ else if (x=='E' && flag==1){
+ flag = 0;
+ break;
+ }
+ else if (flag==1){
+ if (x=='1' || x=='0'){
+ *add = x;
+ add++;
+ }
+ else
+ pc.printf("HOST ERROR!\n");
+ }
+ }
+ }
+ return add-1;
+}
+
+int touchSense( )
+{
+ float sample0, sample1;
+ ground0=0;
+ ground1=0;
+ charger0.mode(PullUp);
+ charger1.mode(PullUp);
+ charger0.mode(PullNone);
+ charger1.mode(PullNone);
+ sample0 = input0.read();
+ sample1 = input1.read();
+ if (sample0 < 0.3 && sample1 < 0.3)
+ return 2;
+ else if (sample0 < 0.3)
+ return 0;
+ else if (sample1 < 0.3)
+ return 1;
+ else
+ return -1;
+}
+
+char readkey( )
+{
+ int T = -1;
+ char key = 'n';
+
+ T = touchSense();
+ if (T==0) {
+ wait(0.005);
+ T = touchSense();
+ if (T==0){
+ while (1){
+ wait(0.005);
+ T = touchSense();
+ if (T==-1){
+ wait(0.005);
+ T = touchSense();
+ if (T==-1){
+ key = '0';
+ break;
+ }
+ }
+ else if (T==2)
+ break;
+ }
+ }
+ }
+ else if (T==1){
+ wait(0.005);
+ T = touchSense();
+ if (T==1){
+ while (1){
+ wait(0.005);
+ T = touchSense();
+ if (T==-1){
+ wait(0.005);
+ T = touchSense();
+ if (T==-1){
+ key = '1';
+ break;
+ }
+ }
+ else if (T==2)
+ break;
+ }
+ }
+ }
+ else if (T==-1)
+ key = 'n';
+ if (T==2){
+ wait(0.005);
+ T = touchSense();
+ if (T==2){
+ while (1){
+ wait(0.005);
+ T = touchSense();
+ if (T==-1){
+ wait(0.005);
+ T = touchSense();
+ if (T==-1){
+ key = 'e';
+ break;
+ }
+ }
+ }
+ }
+ }
+ return key;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Nov 30 22:13:29 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e