Taha Mermer
/
MCP23017
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Diff: MCP23017.cpp
- Revision:
- 5:79b8535dc5ac
- Parent:
- 4:32fd6ee97dff
- Child:
- 6:1144e6353b50
--- a/MCP23017.cpp Sun Nov 28 21:38:25 2010 +0000
+++ b/MCP23017.cpp Sun Nov 28 22:13:12 2010 +0000
@@ -32,7 +32,7 @@
reset(); // initialise chip to power-on condition
}
-/*******************************************************************************
+/* ******************************************************************************
* reset
* Set configuration (IOCON) and direction(IODIR) registers to initial state
*/
@@ -60,7 +60,7 @@
shadow_IPOL = 0;
}
-/*******************************************************************************
+/* ******************************************************************************
* pinMode
*/
void MCP23017::pinMode(int pin, int mode) {
@@ -72,7 +72,7 @@
writeRegister(IODIR, (unsigned short)shadow_IODIR);
}
-/*******************************************************************************
+/* ******************************************************************************
* digitalRead
*/
int MCP23017::digitalRead(int pin) {
@@ -84,7 +84,7 @@
}
}
-/*******************************************************************************
+/* ******************************************************************************
* write_bit
* Write a 1/0 to a single bit of the 16-bit port
*/
@@ -97,7 +97,7 @@
writeRegister(GPIO, (unsigned short)shadow_GPIO);
}
-/*******************************************************************************
+/* ******************************************************************************
* Write a combination of bits to the 16-bit port
*/
void MCP23017::write_mask(unsigned short data, unsigned short mask) {
@@ -105,7 +105,7 @@
writeRegister(GPIO, (unsigned short)shadow_GPIO);
}
-/*******************************************************************************
+/* ******************************************************************************
* read_bit
* Read a single bit from the 16-bit port
*/
@@ -114,7 +114,7 @@
return ((shadow_GPIO >> bit_number) & 0x0001);
}
-/*******************************************************************************
+/* ******************************************************************************
* read_mask
*/
int MCP23017::read_mask(unsigned short mask) {
@@ -122,7 +122,7 @@
return (shadow_GPIO & mask);
}
-/*******************************************************************************
+/* ******************************************************************************
* Config
* set direction and pull-up registers
*/
@@ -135,7 +135,7 @@
writeRegister(IPOL, (unsigned short)shadow_IPOL);
}
-/*******************************************************************************
+/* ******************************************************************************
* digitalWrite
*/
void MCP23017::digitalWrite(int pin, int val) {
@@ -161,7 +161,7 @@
}
}
-/*******************************************************************************
+/* ******************************************************************************
* digitalWordRead
*/
unsigned short MCP23017::digitalWordRead() {
@@ -169,7 +169,7 @@
return shadow_GPIO;
}
-/*******************************************************************************
+/* ******************************************************************************
* digitalWordWrite
*/
void MCP23017::digitalWordWrite(unsigned short w) {
@@ -177,14 +177,14 @@
writeRegister(GPIO, (unsigned short)shadow_GPIO);
}
-/*******************************************************************************
+/* ******************************************************************************
* inputPolarityMask
*/
void MCP23017::inputPolarityMask(unsigned short mask) {
writeRegister(IPOL, mask);
}
-/*******************************************************************************
+/* ******************************************************************************
* inputoutputMask
*/
void MCP23017::inputOutputMask(unsigned short mask) {
@@ -192,7 +192,7 @@
writeRegister(IODIR, (unsigned short)shadow_IODIR);
}
-/*******************************************************************************
+/* ******************************************************************************
* internalPullupMask
*/
void MCP23017::internalPullupMask(unsigned short mask) {
@@ -203,7 +203,7 @@
//PRIVATE
-/*******************************************************************************
+/* ******************************************************************************
* writeRegister
* write a byte
*/
@@ -215,7 +215,7 @@
_i2c.write(MCP23017_i2cAddress, buffer, 2);
}
-/*******************************************************************************
+/* ******************************************************************************
* writeRegister
* write two bytes
*/
@@ -230,7 +230,7 @@
_i2c.write(MCP23017_i2cAddress, buffer, 3);
}
-/*******************************************************************************
+/* ******************************************************************************
* readRegister
*/
int MCP23017::readRegister(int regAddress) {