Diff: i2c_general_io.cpp

Revision:

0:712b59c07bd3

Child:

1:e7e87f75c0d5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/i2c_general_io.cpp	Tue Jul 03 10:14:45 2018 +0000
@@ -0,0 +1,60 @@
+#include "i2c_general_io.h"
+#include "mbed.h"
+
+
+GEN_I2C::GEN_I2C(PinName sda, PinName scl)
+    :
+    i2c_p(new I2C(sda, scl)), 
+    i2c(*i2c_p)
+{
+}
+
+GEN_I2C::GEN_I2C(I2C &i2c_obj)
+    :
+    i2c_p(NULL), 
+    i2c(i2c_obj)
+{
+}
+
+GEN_I2C::~GEN_I2C()
+{
+    if (NULL != i2c_p)
+        delete  i2c_p;
+}
+
+//multi bytes read
+int GEN_I2C::read_reg(char Device_add, char reg_add, char *data, int n){
+
+    int result;
+
+    i2c.write(Device_add,&reg_add,1);
+    result = i2c.read(Device_add|1,data,n);
+    
+    return result;
+}
+
+//single byte read
+char GEN_I2C::read_reg(char Device_add, char reg_add){
+
+    char result = 0xFF;
+
+    i2c.write(Device_add,&reg_add,1);
+    i2c.read(Device_add|1,&result,1);
+    
+    return result;
+
+}
+
+//single byte write
+int GEN_I2C::write_reg(char Device_add, char reg_add, char data){
+
+    int result;
+    char cmd[2];
+    
+    cmd[0] = reg_add;
+    cmd[1] = data;
+
+    result = i2c.write(Device_add,cmd,2);
+
+    return result;
+}