Revision 3:0c291dbc7acc, committed 2015-02-23

Comitter:

miguelcordero191

Date:

Mon Feb 23 20:37:14 2015 +0000

Parent:

2:bc4583ce560e

Commit message:

Some comments were added

Changed in this revision

diff -r bc4583ce560e -r 0c291dbc7acc I2CLCD.cpp
--- a/I2CLCD.cpp	Sun Feb 27 14:28:40 2011 +0000
+++ b/I2CLCD.cpp	Mon Feb 23 20:37:14 2015 +0000
@@ -20,6 +20,32 @@
  * @param value ASCII character code
  * @retval value
  */
+ 
+void I2CLCD::printf(const char *text, int x, int y)
+{
+    int n, len;
+
+    len = strlen(text);
+    
+    i2c.start();
+    i2c.write(i2caddr);
+    i2c.write(0x00);        //Comsend
+    i2c.write(address(x,y));
+    i2c.stop();
+  
+    wait_us(200);
+    
+    i2c.start();
+    i2c.write(i2caddr);
+    i2c.write(0x40);        //Datasend
+    for(n=0; n<len; n++){
+           i2c.write(*text);
+           ++text;
+    }
+    i2c.stop();
+    wait_us(200);  
+} 
+
 int I2CLCD::_putc (int value) {
 
     if (value == '\n') {
@@ -80,21 +106,58 @@
 
     i2caddr = p_i2caddr;
     type = p_type;
-
-    lcd_cfg(p_config);
-
+    /*
+#ifndef LCD_NHD_C022BiZ
+    //lcd_cfg(p_config);
+#endif
     wait_ms(500);
     lcd_out(0x30, 0);
-    wait_ms(5);
-    lcd_out(0x30, 0);
-    wait_ms(2);
+    wait_us(50);
     lcd_out(0x30, 0);
-
-    lcd_out(0x38, 0); // func 
-    lcd_out(0x10, 0); // shift
-    lcd_out(0x0c, 0); // display
-    lcd_out(0x06, 0); // entry mode
+    wait_us(50);
+    lcd_out(0x39, 0);
+    wait_us(50);
+    lcd_out(0x14, 0);       //Bias set
+    wait_us(50);
+    lcd_out(0x78, 0);       //Constrast set
+    wait_us(50); 
+    lcd_out(0x5E, 0);       //Power/ Icon/ Constrast control
+    wait_us(50);
+    lcd_out(0x6A, 0);       //Follower control
+    wait_ms(300); 
+    
+    lcd_out(INST_FUNC, 0); // func 
+    wait_us(50);
+    lcd_out(INST_SHIFT, 0); // shift
+    wait_us(50);
+    lcd_out(INST_DISPLAY, 0); // display
+    wait_us(50);
+    lcd_out(INST_CLEAR, 0); // clear
+    wait_ms(5);
+    lcd_out(INST_ENTRY_MODE, 0); // entry mode
+    wait_us(50);
     cls();
+    wait_us(50);
+    */
+    
+    i2c.frequency(100000);
+    wait_ms(100);
+    i2c.start();
+    i2c.write(i2caddr);
+    i2c.write(0x00);        //Comsend
+    i2c.write(0x38);
+    wait_ms(10);
+    i2c.write(0x39);
+    wait_ms(10);
+    i2c.write(0x14);
+    i2c.write(0x78);
+    i2c.write(0x5E);
+    i2c.write(0x6D);
+    i2c.write(0x0C);
+    i2c.write(0x01);
+    i2c.write(0x06);
+    wait_ms(10);
+    i2c.stop();
 }
 
 void I2CLCD::cls() {
@@ -176,21 +239,21 @@
     i2c.stop();
 }
 
-void I2CLCD::lcd_out (char dat, char rs) {
+void I2CLCD::lcd_out (char dat, char is_value) {
+    
     i2c.start();
     i2c.write(i2caddr);
-    i2c.write(rs ? 0x40 : 0);
+    i2c.write(is_value ? 0x40 : 0x00);
     i2c.write(dat);
     i2c.stop();
 }
 
-char I2CLCD::lcd_in (char rs) {
+char I2CLCD::lcd_in (char is_value) {
     char i;
 
     i2c.start();
     i2c.write(i2caddr);
-    i2c.write(rs ? 0x40 : 0);
-
+    i2c.write(is_value ? 0x40 : 0x00);
     i2c.start();
     i2c.write(i2caddr | 0x01);
     i = i2c.read(0);

diff -r bc4583ce560e -r 0c291dbc7acc I2CLCD.h
--- a/I2CLCD.h	Sun Feb 27 14:28:40 2011 +0000
+++ b/I2CLCD.h	Mon Feb 23 20:37:14 2015 +0000
@@ -17,10 +17,31 @@
 
 #include "mbed.h"
 
+#define LCD_NHD_C022BiZ
 /**
  * @brief default I2C address
  */
-#define I2CLCD_ADDR 0x7c
+
+#ifdef LCD_NHD_C022BiZ
+
+#define I2CLCD_ADDR         0x7c
+#define INST_FUNC           0x38
+#define INST_SHIFT          0x10
+#define INST_DISPLAY        0x0f
+#define INST_CLEAR          0x01
+#define INST_ENTRY_MODE     0x06
+
+#else
+
+#define I2CLCD_ADDR         0x7c
+#define INST_FUNC           0x38
+#define INST_SHIFT          0x10
+#define INST_DISPLAY        0x0c
+#define INST_CLEAR          0x01
+#define INST_ENTRY_MODE     0x06
+
+#endif
+
 
 /**
  * @brief LCD type
@@ -58,16 +79,17 @@
     void locate (int, int);
     void cls ();
     void lcd_cfg (I2CLCDConfig);
-
+    void printf ( const char* text, int x=0, int y=0);
+    
 protected:
     virtual int _putc (int);
     virtual int _getc ();
-
+    
     int address (int, int);
     int rows ();
     int cols ();
     void init (int, I2CLCDType, I2CLCDConfig);
-    void lcd_out (char, char);
+    void lcd_out (char, char = 0);
     char lcd_in (char);
 
     I2C i2c;