TESIS SATUROMETRICA / Mbed 2 deprecated I2C_Tesis

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Dependencies:   BLE_API mbed nRF51822

Fork of I2C_Demo by RedBearLab

Files at this revision

API Documentation at this revision

Revision 3:982bc9dad64e, committed 2016-06-30

Comitter:
cesarcazal
Date:
Thu Jun 30 07:31:52 2016 +0000
Parent:
2:0298ffee8eba
Commit message:
I2C Tesis

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Thu Jan 07 02:55:12 2016 +0000
+++ b/main.cpp	Thu Jun 30 07:31:52 2016 +0000
@@ -20,8 +20,8 @@
 #include "mbed.h"
 #include "wire.h"
 
-#define BLE_Nano
-//#define nRF_51822
+//#define BLE_Nano
+#define nRF_51822
 
 
 #ifdef nRF_51822
@@ -34,26 +34,26 @@
 #define SDA         6
 #endif
 
-#define DEV_ADDR    0xA0
+#define DEV_ADDR    0xB0
 
-Serial pc(USBTX, USBRX);
+//Serial pc(USBTX, USBRX);
 TwoWire Wire = TwoWire(NRF_TWI0);
 
-void AT24C512_WriteBytes(uint16_t addr, uint8_t *pbuf, uint16_t length)
-{
+int WriteBytes(uint8_t addr, uint8_t *pbuf, uint16_t length){
+
     Wire.beginTransmission(DEV_ADDR);
-    Wire.write( (uint8_t)addr>>8 );
+    //Wire.write( (uint8_t)addr>>8 );
     Wire.write( (uint8_t)addr );
     Wire.write(pbuf, length);
-    Wire.endTransmission();
+    return (Wire.endTransmission());
 }
 
-void AT24C512_ReadBytes(uint16_t addr, uint8_t *pbuf, uint16_t length)
-{
+int ReadBytes(uint8_t addr, uint8_t *pbuf, uint16_t length){
+    int error=0;
     Wire.beginTransmission(DEV_ADDR);
-    Wire.write( (uint8_t)addr>>8 );
+    //Wire.write( (uint8_t)addr>>8 );
     Wire.write( (uint8_t)addr );    
-    Wire.endTransmission();
+    error = Wire.endTransmission();
        
     Wire.requestFrom(DEV_ADDR+1, length);
     while( Wire.available() > 0 )
@@ -61,36 +61,56 @@
         *pbuf = Wire.read();
         pbuf++;
     }
+    return(error);
 }
 
 
-static uint8_t wt_data[10] = {'H', 'e', 'l', 'l', 'o', 'W', 'o', 'r', 'l', 'd'};
-static uint8_t rd_data[10];
+//static uint8_t wt_data[10] = {'H', 'e', 'l', 'l', 'o', 'W', 'o', 'r', 'l', 'd'};
+//static uint8_t rd_data[10];
+
+//static uint16_t index;
 
-static uint16_t index;
+DigitalOut  led (p17);
+DigitalIn   button(p13,PullUp);
+
+int estado;
+uint8_t address, data[3];
+
 
 int main(void)
 {
-    pc.baud(9600);
-    wait(5);
+    int estado=0;
+    led=1;
+    data[0]=0;
+    data[1]=0;
+    data[2]=0;
+    //pc.baud(9600);
+    //wait(5);
     //Wire.begin();
     Wire.begin(SCL, SDA, TWI_FREQUENCY_100K);
-    pc.printf("IIC Demo Start \r\n");
-    
-    AT24C512_WriteBytes(0, wt_data, 10);
+    //pc.printf("IIC Demo Start \r\n");
     wait(0.1);
-    
     while(1)
     {
-        AT24C512_ReadBytes(0, rd_data, 10);     
-        pc.printf("Read data from AT24C512 \r\n");
-        for(index=0; index<10; index++)
-        {
-            pc.putc(rd_data[index]);
-            rd_data[index] = 0x00;
+        if (button==0) {
+        estado = WriteBytes(0, data/*wt_data*/, 3);
+        if (estado==0) {
+            led=0;
+        }
+        else {
+           led=1;
+        }
+            wait (0.5f);
         }
-        pc.printf("\r\n");
-        wait(1);
+        //ReadBytes(0, rd_data, 10);     
+        //pc.printf("Read data from AT24C512 \r\n");
+        //for(index=0; index<10; index++)
+        //{
+        //    pc.putc(rd_data[index]);
+        //    rd_data[index] = 0x00;
+        //}
+        //pc.printf("\r\n");
+        //wait(1);
     }
 }