kohacraft Lab
e-paper whereabouts board program
Dependencies: SDFileSystem mbed
Diff: eink.cpp
- Revision:
- 1:cb28911c7ba5
- Parent:
- 0:e4c67c26ba3f
--- a/eink.cpp Sun May 01 03:12:28 2016 +0000
+++ b/eink.cpp Tue May 23 05:06:14 2017 +0000
@@ -1,374 +1,340 @@
+/* EDP control program */
+
#include "mbed.h"
#include "extdio.h"
#include "eink.h"
+int clPulseCount = 0; //for CL pluse count
-//initialize port
+//Initialize the port
void initPort()
{
setCL( 0 );
- setContBas( LE , 0);
- setContBas( OE , 0);
- setContBas( NC10 , 1);
- setContBas( SPH , 1);
+ setContBus( LE , 0);
+ setContBus( OE , 0);
+ setContBus( NC10 , 1);
+ setContBus( SPH , 1);
- setContBas( GMODE , 0);
- setContBas( SPV , 1);
- setContBas( CKV , 0);
- setContBas( EN , 0);
+ setContBus( GMODE , 0);
+ setContBus( SPV , 1);
+ setContBus( CKV , 0);
+ setContBus( EN , 0);
+
+ setDataBus( 0b00000001 );
+ setDataBus( 0b00000000 );
- setDataBas( 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
+ return;
}
-//pageStart
+//page start sequence
void pageStart()
{
- setContBas( GMODE , 1 );
- setContBas( CKV , 1 );
+ setContBus( GMODE , 1 );
+ setContBus( CKV , 1 );
wait_us(11);
- setContBas( SPV , 0 );
+ setContBus( SPV , 0 );
wait_us(11);
- setContBas( CKV , 0 );
+ setContBus( CKV , 0 );
wait_us(10);
- setContBas( CKV , 1 );
+ setContBus( CKV , 1 );
wait_us(10);
- setContBas( SPV , 1 );
+ setContBus( SPV , 1 );
wait_us(12);
- setContBas( CKV , 0 );
+ setContBus( CKV , 0 );
wait_us(10);
- setContBas( CKV , 1 );
+ setContBus( CKV , 1 );
wait_us(22);
- setContBas( CKV , 0 );
+ setContBus( CKV , 0 );
wait_us(10);
- setContBas( CKV , 1 );
+ setContBus( CKV , 1 );
wait_us(22);
- setContBas( CKV , 0 );
+ setContBus( CKV , 0 );
wait_us(10);
- setContBas( CKV , 1 );
+ setContBus( CKV , 1 );
wait_us(1);
+
+ return;
}
-//lineStart
+//line startsequence
void lineStart()
{
- setCL( 1 );
- setCL( 0 );
- setContBas( LE , 0 );
- wait_us(1);
+ setContBus( LE , 0 );
+ setContBus( OE , 1 );
+ setContBus( SPH , 0 );
- setCL( 1 );
- setCL( 0 );
- wait_us(1);
+ clPulseCount = 0;
+
+ return;
+}
- setCL( 1 );
- setCL( 0 );
- wait_us(1);
+//center of line sequence
+void changeSPH()
+{
+ setContBus( SPH , 1 );
+ setContBus( NC10 , 0 );
- setCL( 1 );
- setCL( 0 );
- setContBas( OE , 1 );
- wait_us(1);
+ return;
+}
+//4bit draw sequence
+void setDrawData( char data )
+{
+ setDataBus( data );
setCL( 1 );
setCL( 0 );
- setContBas( SPH , 0 );
-}
-
-//drow pixels
-void drowPixelsRaw( bool d7 , bool d6 , bool d5 , bool d4 , bool d3 , bool d2 , bool d1 , bool d0 )
-{
- setDataBas( d7 , d6 , d5 , d4 , d3 , d2 , d1 , d0 );
- setCL( 1 );
- setCL( 0 );
+
+ //SPH change when CL puls is 200
+ clPulseCount++;
+ if( clPulseCount == EDP_WIDTH/8 )
+ {
+ changeSPH();
+ }
+
+ return;
}
-//lineEnd
+//end line sequence
void lineEnd()
{
- setContBas( NC10 , 1 );
- setContBas( CKV , 0 );
-
- setCL( 1 );
- setCL( 0 );
+ setContBus( NC10 , 1 );
+ setContBus( CKV , 0 );
wait_us(10);
- setContBas( OE , 0 );
- setContBas( LE , 1 );
- setContBas( CKV , 1 );
+ setContBus( OE , 0 );
+ setContBus( LE , 1 );
+ setContBus( CKV , 1 );
wait_us(1);
}
-//pageEnd
+//end page sequence
void pageEnd()
{
- setCL( 1 );
- setCL( 0 );
- setContBas( LE , 0 );
+ setContBus( LE , 0 );
+ setContBus( OE , 1 );
- setCL( 1 );
- setCL( 0 );
-
- setCL( 1 );
- setCL( 0 );
-
- setCL( 1 );
- setCL( 0 );
- setContBas( OE , 1 );
-
- setCL( 1 );
- setCL( 0 );
-
- for( int i=0 ; i<200 ; i++ )
+ for( int i=0 ; i<EDP_WIDTH/4 ; i++ )
{
setCL( 1 );
setCL( 0 );
}
- setContBas( CKV , 0 );
-
- setCL( 1 );
- setCL( 0 );
-
+ setContBus( CKV , 0 );
wait_us(10);
- setContBas( OE , 0 );
-
+ setContBus( OE , 0 );
wait_us(330);
-
- setContBas( GMODE , 0 );
+ setContBus( GMODE , 0 );
wait_us(130);
}
-//change SPH signals
-void changeSPH()
-{
- setContBas( SPH , 1 );
- setContBas( NC10 , 0 );
-}
-//turn off the power
+//trun off EDP
void powerOff()
{
- setDataBas( 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
+ setDataBus( 0b00000000 );
setCL( 0 );
- setContBas( LE , 0);
- setContBas( OE , 0);
- setContBas( NC10 , 0);
- setContBas( SPH , 0);
+ setContBus( LE , 0);
+ setContBus( OE , 0);
+ setContBus( NC10 , 0);
+ setContBus( SPH , 0);
- setContBas( GMODE , 0);
- setContBas( SPV , 0);
- setContBas( CKV , 0);
+ setContBus( GMODE , 0);
+ setContBus( SPV , 0);
+ setContBus( CKV , 0);
- setContBas( EN , 1);
+ setContBus( EN , 1);
+
+ return;
}
-//turn on the power
+//turn on EDP
void powerOn()
{
- setContBas( EN , 0);
+ setContBus( EN , 0);
+ wait_us(100);
+
+ return;
}
-//clear screen 0:Black 1:White
-void clrdisp( bool color )
+//fill color
+//drawMode EDP_WHITE:white EDP_BLACK:black
+void clrDisp( char drawMode )
{
+ char data;
+ if( drawMode == EDP_WHITE)
+ data = 0b01010101; //all pixels white
+ else
+ data = 0b10101010; //all pixels black
+
pageStart();
- for( int j=0 ; j<600 ; j++)
+ for( int j=0 ; j<EDP_HEIGHT ; j++)
{
lineStart();
- for( int i=0 ; i<100 ; i++ )
+ for( int i=0 ; i<EDP_WIDTH ; i+=4 )
{
- if( color == 1)
- drowPixelsRaw( 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 ); //Draw white
- else
- drowPixelsRaw( 1 , 0 , 1 , 0 , 1 , 0 , 1 , 0 ); //Draw black
- }
- changeSPH();
- for( int i=100 ; i<200 ; i++ )
- {
- if( color == 1)
- drowPixelsRaw( 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 ); //Draw white
- else
- drowPixelsRaw( 1 , 0 , 1 , 0 , 1 , 0 , 1 , 0 ); //Draw black
+ setDrawData( data );
}
lineEnd();
}
pageEnd();
+
+ return;
}
-
-
-//Drow 8pixels paletteWhite: 0:draw white at 0 of a data bit, 1:draw white at 1 of a data bit
-void drowPixels( char data , bool paletteWhite )
+//draw 8pixels bmp data
+// data: (MSB)b0A b0B b1A b1B b2A b2B b3A bB3(LSB)
+// b0 b1 b2 b4:pixels
+// AB: 10:black 01:white 00:transparent
+// drawMode: EDP_BLACK draw black at black pixel and draw transparent at white pixel
+// EDP_WHITE draw white at white pixel and draw transparent at black pixel
+// EDP_BLACK_WHITE draw black at black pixel and draw white at white pixel
+void drowPixels( char data , char drawMode )
{
- if( paletteWhite == 0 )
+ char _data = 0;
+ switch( drawMode )
{
- drowPixelsRaw( (data&0x10)!=0 , 1 , (data&0x20)!=0 , 1 , (data&0x40)!=0 , 1 , (data&0x80)!=0 , 1 );
- drowPixelsRaw( (data&0x01)!=0 , 1 , (data&0x02)!=0 , 1 , (data&0x04)!=0 , 1 , (data&0x08)!=0 , 1 );
- //drowPixelsRaw( (data&0x10)!=0 , (data&0x10)==0 , (data&0x20)!=0 , (data&0x20)==0 , (data&0x40)!=0 , (data&0x40)==0 , (data&0x80)!=0 , (data&0x80)==0 );
- //drowPixelsRaw( (data&0x01)!=0 , (data&0x01)==0 , (data&0x02)!=0 , (data&0x02)==0 , (data&0x04)!=0 , (data&0x04)==0 , (data&0x08)!=0 , (data&0x08)==0 );
+ case EDP_BLACK :
+ _data = 0;
+ _data |= ((data&0x10)==0)<<7;
+ _data |= ((data&0x20)==0)<<5;
+ _data |= ((data&0x40)==0)<<3;
+ _data |= ((data&0x80)==0)<<1;
+ setDrawData( _data );
+ _data = 0;
+ _data |= ((data&0x01)==0)<<7;
+ _data |= ((data&0x02)==0)<<5;
+ _data |= ((data&0x04)==0)<<3;
+ _data |= ((data&0x08)==0)<<1;
+ setDrawData( _data );
+ break;
+ case EDP_WHITE :
+ _data = 0;
+ _data |= ((data&0x10)!=0)<<6;
+ _data |= ((data&0x20)!=0)<<4;
+ _data |= ((data&0x40)!=0)<<2;
+ _data |= ((data&0x80)!=0);
+ setDrawData( _data );
+ _data = 0;
+ _data |= ((data&0x01)!=0)<<6;
+ _data |= ((data&0x02)!=0)<<4;
+ _data |= ((data&0x04)!=0)<<2;
+ _data |= ((data&0x08)!=0);
+ setDrawData( _data );
+ break;
+ default :
+ _data = 0;
+ _data |= ((data&0x10)==0)<<7;
+ _data |= ((data&0x10)!=0)<<6;
+ _data |= ((data&0x20)==0)<<5;
+ _data |= ((data&0x20)!=0)<<4;
+ _data |= ((data&0x40)==0)<<3;
+ _data |= ((data&0x40)!=0)<<2;
+ _data |= ((data&0x80)==0)<<1;
+ _data |= ((data&0x80)!=0);
+ setDrawData( _data );
+ _data = 0;
+ _data |= ((data&0x01)==0)<<7;
+ _data |= ((data&0x01)!=0)<<6;
+ _data |= ((data&0x02)==0)<<5;
+ _data |= ((data&0x02)!=0)<<4;
+ _data |= ((data&0x04)==0)<<3;
+ _data |= ((data&0x04)!=0)<<2;
+ _data |= ((data&0x08)==0)<<1;
+ _data |= ((data&0x08)!=0);
+ setDrawData( _data );
+ break;
}
- else
- {
- drowPixelsRaw( (data&0x10)==0 , 1 , (data&0x20)==0 , 1 , (data&0x40)==0 , 1 , (data&0x80)==0 , 1 );
- drowPixelsRaw( (data&0x01)==0 , 1 , (data&0x02)==0 , 1 , (data&0x04)==0 , 1 , (data&0x08)==0 , 1 );
- //drowPixelsRaw( (data&0x10)==0 , (data&0x10)!=0 , (data&0x20)==0 , (data&0x20)!=0 , (data&0x40)==0 , (data&0x40)!=0 , (data&0x80)==0 , (data&0x80)!=0 );
- //drowPixelsRaw( (data&0x01)==0 , (data&0x01)!=0 , (data&0x02)==0 , (data&0x02)!=0 , (data&0x04)==0 , (data&0x04)!=0 , (data&0x08)==0 , (data&0x08)!=0 );
- }
-}
-
-//draw BMP file of fp(File Pointer) at locate(0,0)
-//BMP width and hight size is multiples of 8pixel
-void dispbmp(FILE *fp )
-{
- dispbmp( fp , 0 , 0 );
+
+ return;
}
-//draw BMP file of fp(File Pointer) at locate(xpos,ypos)
-//BMP width and hight size is multiples of 8pixel
-//locate parametors are multiples of 8pixel
-void dispbmp(FILE *fp , int xpos , int ypos)
+//display the bmp image to EDP
+// drawMode: EDP_BLACK draw black at black pixel and draw transparent at white pixel
+// EDP_WHITE draw white at white pixel and draw transparent at black pixel
+// EDP_BLACK_WHITE draw black at black pixel and draw white at white pixel
+void dispBmp(FILE *fp , char drawMode )
{
- char bmpdata;
- int size;
-
- //check file pointer is avalable.
- if( fp == NULL )
- {
- fclose(fp);
- free(fp);
-
- //not avalable
- clrdisp(1); //clear White
- clrdisp(0); //clear Black
- clrdisp(1); //clear White
- clrdisp(0); //clear Black
-
- return;
- }
-
+ bool paletteWhite = 0; //white palette number
+ char bmpdata[EDP_WIDTH/8]; //data buffer for one line
+
+ //confirm the filepointer is available
+ if( fp == NULL )
+ {
+ fclose(fp);
+ free(fp);
+
+ //unavailable
+ clrDisp(EDP_WHITE); //fill white
+ clrDisp(EDP_BLACK); //fill black
+ clrDisp(EDP_WHITE); //fill white
+ clrDisp(EDP_BLACK); //fill black
-
- //get Image Width and hight pixels
- unsigned int xsize , ysize;
- fseek(fp, 18 , SEEK_SET);//to xsize
- size = fread( &xsize , sizeof(unsigned int) , 1 , fp);
- size = fread( &ysize , sizeof(unsigned int) , 1 , fp);
-
-
- //decide witch value(0 or 1 of the image data bit) is writing in white dot
- unsigned char palettetemp[8];
- fseek(fp, 54 , SEEK_SET);//bitmap headder throw
- size = fread( palettetemp , sizeof(char) , 8 , fp);
- int palette0 = (int)palettetemp[0]+(int)palettetemp[1]+(int)palettetemp[2]; //sum of palette0 RGBvaue
- int palette1 = (int)palettetemp[4]+(int)palettetemp[5]+(int)palettetemp[6]; //sum of palette1 RGBvaue
- bool paletteWhite = 0;
- if( palette0 > palette1 )
- {
- paletteWhite = 0; //draw white in the bit value 0 of BMP data
- }
- else
- {
- paletteWhite = 1; //draw white in the bit value 1 of BMP data
- }
-
- //go to bmp image data
- unsigned int dataOffset;
- fseek(fp, 10 , SEEK_SET);
- size = fread( &dataOffset , sizeof(unsigned int) , 1 , fp);
- fseek(fp, dataOffset , SEEK_SET);
+ return;
+ }
+
+ //get image wight anf height
+ unsigned int bmpWidth , bmpHeight;
+ fseek(fp, 18 , SEEK_SET);//to xsize
+ fread( &bmpWidth , sizeof(unsigned int) , 1 , fp);
+ fread( &bmpHeight , sizeof(unsigned int) , 1 , fp);
+ if( bmpWidth != EDP_WIDTH || bmpHeight != EDP_HEIGHT )
+ {
+ fclose(fp);
+ free(fp);
+
+ //not match size with EDP
+ clrDisp(EDP_WHITE); //fill white
+ clrDisp(EDP_BLACK); //fill black
+ clrDisp(EDP_WHITE); //fill white
- pageStart();
-
- //pass line until drow y position
- for( int j=0 ; j<ypos ; j++)
- {
- lineStart();
- for( int i=0 ; i<100 ; i++ )
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 );
- changeSPH();
- for( int i=0 ; i<100 ; i++ )
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 );
- lineEnd();
- }
-
- for( int j=ypos ; j<ysize+ypos ; j++)
+ return;
+ }
+
+ //get palette data
+ unsigned char paletteTemp[8];
+ fseek(fp, 54 , SEEK_SET);//bitmap headder throw
+ fread( paletteTemp , sizeof(char) , 8 , fp);
+ int palette0 = (int)paletteTemp[0]+(int)paletteTemp[1]+(int)paletteTemp[2];
+ int palette1 = (int)paletteTemp[4]+(int)paletteTemp[5]+(int)paletteTemp[6];
+ if( palette0 > palette1 ) //select white palette number,witch the braightest palette
+ paletteWhite = 0; //
+ else
+ paletteWhite = 1; //
+
+ //skip to image data
+ unsigned int dataOffset;
+ fseek(fp, 10 , SEEK_SET);
+ fread( &dataOffset , sizeof(unsigned int) , 1 , fp);
+ fseek(fp, dataOffset , SEEK_SET);
+
+ //dwar bmp data to EDP
+ pageStart();
+ for( int j=0 ; j<EDP_HEIGHT ; j++)
+ {
+ //read for one line and chage to bit for white is 1 and black is 0
+ fread( &bmpdata , sizeof(char) , EDP_WIDTH/8 , fp);
+ if( paletteWhite == 0 )
{
- lineStart();
-
- for( int i=0 ; i<100 ; i+=2 )
- {
- if( i>=(xpos/4) && i<((xsize+xpos)/4) )
- {
- size = fread( &bmpdata , sizeof(char) , 1 , fp);
- if( size != 1 )
- {
- drowPixelsRaw( 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 ); //if it can not read , draw in white
- drowPixelsRaw( 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 );
- }
- else
- {
- drowPixels(bmpdata,paletteWhite); //draw
- }
- }
- else
- {
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 ); //not draw at out of image
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 );
- }
- }
- changeSPH();
- for( int i=100 ; i<200 ; i+=2 )
- {
- if( i>=(xpos/4) && i<((xsize+xpos)/4) ) //
- {
- size = fread( &bmpdata , sizeof(char) , 1 , fp);
- if( size != 1 )
- {
- drowPixelsRaw( 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 ); //if it can not read , draw in white
- drowPixelsRaw( 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 );
- }
- else
- {
- drowPixels(bmpdata,paletteWhite);
- }
- }
- else
- {
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 ); //not draw at out of image
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 );
- }
-
- }
-
- //pass the data over 800pixels
- if( (xsize+xpos)>800 )
- {
- int dataPass = ((xsize+xpos)-800)/8;
- fseek(fp, dataPass , SEEK_CUR);
- }
-
- lineEnd();
+ for( int i=0 ; i<EDP_WIDTH/8 ; i++ )
+ bmpdata[i] = ~bmpdata[i];
}
-
- //pass remain lines
- for( int j=ypos+ysize ; j<600 ; j++)
+
+ lineStart();
+ for( int i=0 ; i<EDP_WIDTH ; i+=8 )
{
- lineStart();
- for( int i=0 ; i<100 ; i++ )
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 ); //not draw
- changeSPH();
- for( int i=0 ; i<100 ; i++ )
- drowPixelsRaw( 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 ); //not draw
- lineEnd();
+ drowPixels(bmpdata[i/8],drawMode);
}
-
- pageEnd();
+ lineEnd();
+
+ }
+ pageEnd();
+
+ return;
}
-