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Eldert Besseling
Joined: 07 Oct 2003
Posts: 7
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| display driver |
 Posted: Mon Apr 26, 2004 4:37 am |
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Hi All,
I am searching for drivers for the winstar WG12864F-YYH-V display
This is a LCD display with a character generator T6963C
Has somebody drivers written for it?
Regards
Eldert |
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treitmey
Joined: 23 Jan 2004
Posts: 1094
Location: Appleton,WI USA
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| Posted: Mon Apr 26, 2004 10:20 am |
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Yup, did this one too.
I wish we could have a file pile for code snipets and drivers.
Take it for what its worth. I'm not sure how complete it is.
I just mod a different graphics LCD driver.
| Code: |
/////////////////////////////////////////////////////////////////////////
//// c:\program files\PICC\drivers\LCD_T6963C.c ////
//// This file contains drivers for using a Tosiba T6963C controller ////
//// in parallel/8080(intel) mode. The T6963C is 240 pixles across ////
//// and 64 pixels down. The driver treats the upper left pixel 0,0 ////
//// ////
//// glcd_init(mode) ////
//// glcd_pixel(x,y,color) ////
//// glcd_line(x1,y1,x2,y2,color) ////
//// glcd_rect(x1,y1,x2,y2,fill,color) ////
//// glcd_bar(x1,y1,x2,y2,width,color) ////
//// glcd_circle(x,y,radius,fill,color) ////
//// glcd_text57(x,y,textptr,size,color) ////
//// glcd_fillScreen(color) ////
/////////////////////////////////////////////////////////////////////////
#ifndef GLCD_COL
#define GLCD_COL 240 // Used for text wrapping by glcd_text57 function and sanity check
#endif
#ifndef GLCD_ROW
#define GLCD_ROW 64 // Used for text wrapping by glcd_text57 function and sanity check
#endif
#define ON 1
#define OFF 0
#define YES 1
#define NO 0
#define set_tris_lcd(x) set_tris_a(0);set_tris_d(x)
//TRIS DataBus=x, note:control bus (PORTA) always outputs
////////////////////[PICK ONE OF THESE TWO SECTIONS]//////////////////
//const int1 LCDFont = 0;//Font select
//const int16 TextHome =0x0780;
//const int8 AreaSet_T =0x001E;//how many bytes before a new line
//const int16 GraphicsHome=0x0000;
//const int8 AreaSet_G =0x001E;//how many bytes before a new line
//////////////////////////////////////////////////////////////////////
const int1 LCDFont = 1;//Font select
const int16 TextHome =0x0780;
const int8 AreaSet_T =30;//how many bytes before a new line
const int16 GraphicsHome=0x0000;
const int8 AreaSet_G =0x001E;//how many bytes before a new line
////////////////////////////////////////////////////////////////
const int8 AutoModeWrite=0xB0;
const int8 AutoModeRead =0xB1;
const int8 AutoModeReset=0xB2;
const int8 LCDModeSet = 0x80;//send this OR'd with the following
const int8 LCDMode_OR = 0b0000;
const int8 LCDMode_XOR = 0b0001;
const int8 LCDMode_AND = 0b0010;
const int8 LCDMode_TA = 0b0100; //TEXT ATTRIBUTE mode.
const int8 LCDMode_RAM = 0b1000; //1=CG RAM, 0=internal CG ROM
const int8 LCDSetCursorPtr =0x21; //Number of lines in the cursor
const int8 LCDSetCursorSize=0xA0; //Number of lines in the cursor
const int8 LCDDispMode = 0x90;//send this OR'd with the following
const int8 LCDDisp_BLK = 0b0001;
const int8 LCDDisp_CUR = 0b0010;
const int8 LCDDisp_TXT = 0b0100;
const int8 LCDDisp_GRH = 0b1000;
const int8 LCDMaxBusyCount =20;//will try count-1 times before giving up
struct lcd_pin_def
{
BOOLEAN w_bar; // A0 Write bar active low
BOOLEAN r_bar; // A1 Read bar active low
BOOLEAN ce_bar; // A2 Chip Enable BAR active low
BOOLEAN cd; // A3 Command/Data BAR 1=command 0=data
BOOLEAN reset_bar; // A4 Reset active low
BOOLEAN fs; // A5 Font select
BOOLEAN unused1; // A6 Unused
BOOLEAN unused2; // A7 Unused
int unused4 : 8; // PortB... waisted some bits/bytes for clarity
int unused5 : 8; // PortC... waisted some bits/bytes for clarity
int data : 8; // PortD=Data bus
};
struct lcd_pin_def LCD;
#if defined(__PCM__)
#byte LCD = 5 //(no semicolin) 5=A0 on a 16F877A
#elif defined(__PCH__)
#byte LCD = 3968 //(no semicolin)3968=A0 on a 18F452
#endif
void glcd_FontSelect(int1 fs);
BYTE glcd_ReadByte();
int1 glcd_WriteByte(int1 cd, BYTE data); //return, 1=success 0=failure
int1 glcd_WriteByteAuto(BYTE data); //return, 1=success 0=failure
int1 glcd_WriteCmd2(int16 data, BYTE cmd);
int1 glcd_WriteCmd1(BYTE data, BYTE cmd);
//BOOLEAN glcd_pixel(unsigned int x,unsigned int y, int1 color);
//void glcd_fillScreen(int1 color);
void glcd_init(int1 mode) //init is the only function changed
{
int16 counter;
fprintf(DEBUG,"LCD init\r");
set_tris_lcd(0xff);//TRIS DATA bus,note:control bus always outputs
LCD.w_bar=1; // INITIAL STATES OF CONTROL PINS
LCD.r_bar=1; //
LCD.ce_bar=0; //
LCD.cd=1; // data
LCD.fs=LCDFont; // FontSelect
LCD.reset_bar=0; // preform a reset
delay_us(2); // delay the prescribed time for a reset
LCD.reset_bar=1; // run
//Set up the graphics and text areas
glcd_WriteCmd2(TextHome,0x40);
glcd_WriteCmd2(AreaSet_T,0x41);
glcd_WriteCmd2(GraphicsHome,0x42);
glcd_WriteCmd2(AreaSet_G,0x43);
//Clear all RAM of LCD
glcd_WriteByte(1,AutoModeWrite);
for (counter=0;counter<0xffff;++counter)
{
glcd_WriteByteAuto(0);//fill everything with zeros
}
glcd_WriteByte(1,AutoModeReset);
fprintf(DEBUG,"LCD init DONE.\r");
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
// Purpose: Writes a byte of data from the current location
// Inputs: cd 1=command 0=data BYTE data
// Ouputs: Int1 1=success 0=failure
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
int1 glcd_WriteByte(int1 cd, BYTE data)
{
BYTE status=0,count=0;
set_tris_lcd(0xFF);
LCD.w_bar=1;LCD.r_bar=1;LCD.cd=1;LCD.fs=LCDFont;//defaults
WriteByteLabel:
// First section checks if LCD is busy
LCD.r_bar=0; // Read
status=LCD.data; // Latch data
LCD.r_bar=1; // Release
++count;
if (count>LCDMaxBusyCount)
{
fprintf(DEBUG,"-Error writing to LCD,.. Busy\r");
return(0);
}
if (!bit_test(status,0) || !bit_test(status,1)) //loop if either is 0
{
goto WriteByteLabel;
}
//if(cd==0) {fprintf(DEBUG,"Data= %lx\r",data);}
//if(cd==1) {fprintf(DEBUG,"Command %lx\r",data);}
set_tris_lcd(0x00); //All outputs
LCD.cd=cd; //Command/Data bar
LCD.data=data;
LCD.r_bar=1; //not read
LCD.w_bar=0; //write
set_tris_lcd(0xFF); //Port D tristate ie: all inputs
return (1); //Return status
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
// Purpose: Writes continuous bytes of data from the current location
// Inputs: BYTE data
// Ouputs: Int1 1=success 0=failure
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
int1 glcd_WriteByteAuto(BYTE data)
{
BYTE status=0,count=0; //status bits ARE DIFFERENT BITS THAN NORMAL
set_tris_lcd(0xFF); //First section checks if LCD is busy
LCD.w_bar=1;LCD.r_bar=1;LCD.cd=1;LCD.fs=1;//defaults
do
{
LCD.r_bar=0; // Read
status=LCD.data; // Latch data
LCD.r_bar=1; // Release
++count;
if (count>LCDMaxBusyCount)
{
fprintf(DEBUG,"0Error writing to LCD,.. Busy status=%x\r",status);
return(0);
}
}while (!bit_test(status,3));//Check until bit3==1 (ready)
set_tris_lcd(0x00); //All outputs
LCD.cd=0; //This is always data, cd=0
LCD.data=data; //Put data on data bus
LCD.r_bar=1; //not read
LCD.w_bar=0; //write
LCD.w_bar=1; //release
set_tris_lcd(0xFF); //Port D tristate ie: all inputs
return (1); //Return status
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
// Purpose: Writes a one byte of data and a command
// Inputs: BYTE data BYTE cmd
// Ouputs: Int1 1=success 0=failure
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
int1 glcd_WriteCmd1(BYTE data, BYTE cmd)
{
if (!glcd_WriteByte(0,data)){
fprintf(DEBUG,"2Error LCD is Busy\r");
return (0);
}
if (!glcd_WriteByte(1,cmd)){
fprintf(DEBUG,"3Error LCD is Busy\r");
return (0);
}
return (1);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
// Purpose: Writes a two data byte command
// Inputs: int16 data BYTE cmd
// Ouputs: Int1 1=success 0=failure
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
int1 glcd_WriteCmd2(int16 data, BYTE cmd)
{
if (!glcd_WriteByte(0,data & 0xFF)){
fprintf(DEBUG,"1Error LCD is Busy\r");
return (0);
}
if (!glcd_WriteByte(0,data>>8)){
fprintf(DEBUG,"2Error LCD is Busy\r");return (0);
}
if (!glcd_WriteByte(1,cmd)){
fprintf(DEBUG,"3Error LCD is Busy\r");
return (0);
}
return (1);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
// Purpose: Reads a byte of data from the current location
// Ouputs: A byte of data read from the LCD
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
BYTE glcd_ReadByte()
{
BYTE data,status,count=0; // Stores the data read from the LCD
set_tris_lcd(0xFF) ; //First section checks if LCD is busy
LCD.w_bar=1;LCD.r_bar=1;LCD.cd=1;LCD.fs=LCDFont;//defaults
LCD.cd=0;
ReadByteLabel:
LCD.r_bar=0; // Read
status=LCD.data; // Latch data
LCD.r_bar=1; // Release
++count;
if (count>LCDMaxBusyCount)
{
fprintf(DEBUG,"-Error writing to LCD,.. Busy\r");
return(0);
}
if (!bit_test(status,0) || !bit_test(status,1)) //loop if either is 0
{
// fprintf(DEBUG,".");
goto ReadByteLabel;
}
LCD.cd=0; // Command/Data bar
LCD.r_bar=0; // read
data=LCD.data;
LCD.r_bar=1;
return data; //Return the read data
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
// Purpose: Sends data to LCD
// Ouputs: A byte of data read from the LCD
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
void glcd_putc( char c) {
//fprintf(DEBUG,"->%x\r",c);
switch (c) {
// case '\f' : lcd_send_byte(0,1);
// delay_ms(2);
// break;
// case '\n' : lcd_gotoxy(1,2); break;
// case '\b' : lcd_send_byte(0,0x10); break;
default : glcd_WriteCmd1(c-0x20,0xc0);break;//Write to LCD autoinc
}
}
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xmen
Joined: 30 Jul 2004
Posts: 2
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| Posted: Fri Jul 30, 2004 9:23 pm |
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Hello Treitmey:
In your source code, there are a lot of functions that are not in source code.
Concretely, are not:
glcd_pixel(x,y,color)
glcd_line(x1,y1,x2,y2,color)
glcd_rect(x1,y1,x2,y2,fill,color)
glcd_bar(x1,y1,x2,y2,width,color)
glcd_circle(x,y,radius,fill,color)
glcd_text57(x,y,textptr,size,color)
glcd_fillScreen(color)
May you provide full source code, please ?
Regards.
====== |
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dyeatman
Joined: 06 Sep 2003
Posts: 1912
Location: Norman, OK
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| Posted: Sat Jul 31, 2004 12:40 pm |
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Treitmey,
You can put it in the code library... For us thats the "file pile"
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