hidaka sato
i2cmaster class without interrupt process
Revision 0:a7ab96dc6a35, committed 2017-02-26
- Comitter:
- sgrsn
- Date:
- Sun Feb 26 07:02:27 2017 +0000
- Commit message:
- i2cmaster class without interrut process
Changed in this revision
| i2cmaster.cpp | Show annotated file Show diff for this revision Revisions of this file |
| i2cmaster.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r a7ab96dc6a35 i2cmaster.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/i2cmaster.cpp Sun Feb 26 07:02:27 2017 +0000
@@ -0,0 +1,28 @@
+#include "i2cmaster.h"
+
+i2c::i2c(PinName sda, PinName scl) : I2C(sda, scl)
+{
+ frequency(400000);
+}
+
+void i2c::sendi2c(char addr, char registar, int data, int size)
+{
+ if(size > 0) size = size;
+ else if(data > 0xFFFFFF) size = 4;
+ else if(data > 0xFFFF) size = 3;
+ else if(data > 0xFF) size = 2;
+ else size = 1;
+ char DATA[4] = {data & 0xFF, (data>>8) & 0xFF, (data>>16) & 0xFF, (data>>24) & 0xFF};
+ char i2cData[3] = {size, registar, SendData};
+ write(addr, i2cData, 3);
+ write(addr, DATA, size);
+}
+
+int i2c::getSlaveData(char addr, char registar, int size)
+{
+ char i2cData[3] = {size, registar, RequestData};
+ char getData[12] = {};
+ write(addr, i2cData, 3);
+ read(addr, getData, size);
+ return getData[0] | (getData[1] << 8) | (getData[2] << 16) | (getData[3] << 24);
+}
\ No newline at end of file
diff -r 000000000000 -r a7ab96dc6a35 i2cmaster.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/i2cmaster.h Sun Feb 26 07:02:27 2017 +0000
@@ -0,0 +1,40 @@
+#ifndef MBED_I2CMASTER_H
+#define MBED_I2CMASTER_H
+
+#include "mbed.h"
+
+#define SendData 0
+#define RequestData 1
+
+class i2c : public I2C
+{
+ public:
+ i2c(PinName sda, PinName scl);
+ /*{
+ frequency(400000);
+ }*/
+
+ void sendi2c(char addr, char registar, int data, int size = 0);
+ /*{
+ if(size > 0) size = size;
+ else if(data > 0xFFFFFF) size = 4;
+ else if(data > 0xFFFF) size = 3;
+ else if(data > 0xFF) size = 2;
+ else size = 1;
+ char DATA[4] = {data & 0xFF, (data>>8) & 0xFF, (data>>16) & 0xFF, (data>>24) & 0xFF};
+ char i2cData[3] = {size, registar, SendData};
+ write(addr, i2cData, 3);
+ write(addr, DATA, size);
+ }*/
+
+ int getSlaveData(char addr, char registar, int size = 1);
+ /*{
+ char i2cData[3] = {size, registar, RequestData};
+ char getData[12] = {};
+ write(addr, i2cData, 3);
+ read(addr, getData, size);
+ return getData[0] | (getData[1] << 8) | (getData[2] << 16) | (getData[3] << 24);
+ }*/
+};
+
+#endif