Revision 0:904e837fccc5, committed 2012-11-28

Comitter:

matsu

Date:

Wed Nov 28 16:55:32 2012 +0000

Child:

1:0c1dd02be97a

Commit message:

this is sample source of MMA8452

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Nov 28 16:55:32 2012 +0000
@@ -0,0 +1,71 @@
+#include "mbed.h"
+
+I2C i2c(p9,p10);
+Serial pc(USBTX, USBRX);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+
+int main() {
+    led1 = 0;
+    led2 = 0;
+    led3 = 0;
+    char cmd[6];
+    char add[1];
+    char init[2];
+    add[0] = 0x01;
+    init[0] = 0x2A;
+    init[1] = 0x01;
+    int number=0;
+    i2c.frequency(40000);
+
+    wait(0.5);
+    //init
+    //set active mode    
+    while(i2c.write(0x3A,init,2));
+    led1 = 1;
+    led2 = 1;
+    led3 = 1;
+    
+    //get analog data
+    while(1) {
+        //send procedure
+        wait(0.07);
+        switch(number){
+        case 0:
+//            i2c.start();
+            if(i2c.write(0x3A,add,1) == 0){
+                number++;
+                led1 = 1;
+            }else{
+                number=0;
+                led1 = 0;
+                led2 = 0;
+                led3 = 1;
+            }
+            break;
+        case 1:
+//            i2c.start();
+            if(i2c.read(0x3A,cmd,6) == 0){
+                number++;
+                led2 = 1;
+            }else{
+                number=0;
+                led1 = 0;
+                led2 = 0;
+                led3 = 0;
+            }
+            break;    
+        case 2:
+//            pc.printf("\r cmd1 = %d,cmd2 = %d,cmd3 = %d                ",((cmd[0]<<4)+(cmd[1]>>4)),((cmd[2]<<4)+(cmd[3]>>4)),((cmd[4]<<4)+(cmd[5]>>4)));
+            pc.printf("\r X = %d,Y = %d,Z = %d                ",cmd[1],cmd[3],cmd[5]);
+            led3 = 1;
+            wait(0.5);
+            led1 = 0;
+            led2 = 0;
+            led3 = 0;
+            number=0;
+            break;
+        }
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Nov 28 16:55:32 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e2ed12d17f06
\ No newline at end of file