Revision 2:baf578069dfc, committed 2015-04-07

Comitter:

MACRUM

Date:

Tue Apr 07 05:03:44 2015 +0000

Parent:

1:fce3e353410c

Commit message:

Add printf with X-Y parameters and setter of number of chars in a line

Changed in this revision

diff -r fce3e353410c -r baf578069dfc SB1602E.cpp
--- a/SB1602E.cpp	Mon Jan 05 05:19:43 2015 +0000
+++ b/SB1602E.cpp	Tue Apr 07 05:03:44 2015 +0000
@@ -1,8 +1,8 @@
 /** Text LCD module "SB1602E" class library
  *
- *  @author  Tedd OKANO & Masato YAMANISHI
- *  @version 2.01
- *  @date    05-Jan-2015
+ *  @author  Tedd OKANO, Masato YAMANISHI & Toyomasa Watarai
+ *  @version 2.1
+ *  @date    07-April-2015
  *
  *  SB1602E is an I2C based low voltage text LCD panel (based Sitronix ST7032 chip)
  *  The module by StrawberryLinux
@@ -21,6 +21,8 @@
  *    revision 1.3  02-May-2014   a. puticon() added (for SB1602B) by Masato YAMANISHI san
  *    revision 2.0  20-Oct-2014   a. class name is changed and published as "SB1602E"
  *                                b. re-written for better usability
+ *    revision 2.1  07-Apl-2015   a. add printf() with X and Y position
+ *                                b. add setter for number of chars in a line (e.g. 8x2 LCD support)
  */
 
 #include    <stdarg.h>
@@ -28,12 +30,12 @@
 #include    "SB1602E.h"
 
 
-SB1602E::SB1602E( PinName I2C_sda, PinName I2C_scl, char *init_massage ) : i2c_p( new I2C( I2C_sda, I2C_scl ) ), i2c( *i2c_p )
+SB1602E::SB1602E( PinName I2C_sda, PinName I2C_scl, char *init_massage ) : i2c_p( new I2C( I2C_sda, I2C_scl ) ), i2c( *i2c_p ), charsInLine( MaxCharsInALine )
 {
     init( init_massage );
 }
 
-SB1602E::SB1602E( I2C &i2c_, char *init_massage ) : i2c_p( NULL ), i2c( i2c_ )
+SB1602E::SB1602E( I2C &i2c_, char *init_massage ) : i2c_p( NULL ), i2c( i2c_ ), charsInLine( MaxCharsInALine )
 {
     init( init_massage );
 }
@@ -103,6 +105,19 @@
     puts( line, s );
 }
 
+void SB1602E::printf( char x, char y, char *format, ... )
+{
+    char    s[ 32 ];
+    va_list args;
+
+    va_start( args, format );
+    vsnprintf( s, 32, format, args );
+    va_end( args );
+
+    curs[ y ] = x;
+    puts( y, s );
+}
+
 void SB1602E::putc( char line, char c )
 {
     if ( (c == '\n') || (c == '\r') ) {
@@ -125,7 +140,7 @@
     const char    Comm_SetDDRAMAddress        = 0x80;
     const char    DDRAMAddress_Ofst[]         = { 0x00, 0x40 };
 
-    if ( (x >= MaxCharsInALine) || (y >= 2) )
+    if ( (x >= charsInLine) || (y >= 2) )
         return;
 
     lcd_command( (Comm_SetDDRAMAddress | DDRAMAddress_Ofst[ y ]) + x );
@@ -176,7 +191,7 @@
 
 void SB1602E::clear_lest_of_line( char line )
 {
-    for ( int i = curs[ line ]; i < MaxCharsInALine; i++ )
+    for ( int i = curs[ line ]; i < charsInLine; i++ )
         putcxy( ' ', i, line );
 }
 

diff -r fce3e353410c -r baf578069dfc SB1602E.h
--- a/SB1602E.h	Mon Jan 05 05:19:43 2015 +0000
+++ b/SB1602E.h	Tue Apr 07 05:03:44 2015 +0000
@@ -1,8 +1,8 @@
 /** Text LCD module "SB1602E" class library
  *
- *  @author  Tedd OKANO & Masato YAMANISHI
- *  @version 2.01
- *  @date    05-Jan-2015
+ *  @author  Tedd OKANO, Masato YAMANISHI & Toyomasa Watarai
+ *  @version 2.1
+ *  @date    07-April-2015
  *
  *  SB1602E is an I2C based low voltage text LCD panel (based Sitronix ST7032 chip)
  *  The module by StrawberryLinux
@@ -21,6 +21,8 @@
  *    revision 1.3  02-May-2014   a. puticon() added (for SB1602B) by Masato YAMANISHI san
  *    revision 2.0  20-Oct-2014   a. class name is changed and published as "SB1602E"
  *                                b. re-written for better usability
+ *    revision 2.1  07-Apl-2015   a. add printf() with X and Y position
+ *                                b. add setter for number of chars in a line (e.g. 8x2 LCD support)
  */
 
 #ifndef        MBED_SB1602E
@@ -31,12 +33,10 @@
 #include    "SB1602E.h"
 
 
-/** PCA9629A class
+/** SB1602E class
  *
- *  This is a driver code for the PCA9629A stepper motor controller.
- *  This class provides interface for PCA9629A operation and accessing its registers.
- *  Detail information is available on next URL.
- *    http://www.nxp.com/products/interface_and_connectivity/i2c/i2c_bus_controller_and_bridge_ics/PCA9629APW.html
+ *  This is a driver code for the SB1602E LCD module.
+ *  This class provides interface for ST7032 operation and accessing its registers.
  *
  *  Example:
  *  @code
@@ -76,7 +76,7 @@
 
     /** Printf
      *
-     *  pirntf function with line number. 
+     *  printf function with line number. 
      *  it can be used like
      *
      *  lcd.printf( 0, "Hello world!" );
@@ -87,6 +87,20 @@
      */
     void printf( char line, char *format, ... );
 
+    /** Printf
+     *
+     *  printf function with X and Y character position on the LCD.
+     *  it can be used like
+     *
+     *  lcd.printf( 0, 0, "Hello world!" );
+     *  lcd.printf( 4, 1, "pi = %.6f", 3.14159265 );
+     *
+     * @param x X horizontal character position on the LCD
+     * @param y Y vertical character position on the LCD
+     * @param format following parameters are compatible to stdout's printf
+     */
+    void printf( char x, char y, char *format, ... );
+    
     /** Put character : "putc()"
      *
      * @param line line# (0 for upper, 1 for lower)
@@ -148,6 +162,12 @@
      */
     void puticon( unsigned short flg );
     
+    /** Set number of charactors in a line
+     *
+     * @param ch number of charactors in a line
+     */
+    void setCharsInLine( char ch ) { charsInLine = ch; };
+    
 private:
     char    curs[2];
     void    init( char *init_massage );
@@ -158,6 +178,7 @@
     I2C     *i2c_p;
     I2C     &i2c;
     char    i2c_addr;
+    char    charsInLine;
 
 private:
     typedef enum {