STM32F4 2x16 lcd driver ( RW iptal edilir mi?) Çözüldü.

[respected]

//hd44780.c
//***************** (c) 2010 BTC Korporacja ***********************************
//                     http://www kamami.com
//
//    THE SOFTWARE INCLUDED IN THIS FILE IS FOR GUIDANCE ONLY.
//    BTC KORPORACJA SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
//    OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
//    FROM USE OF THIS SOFTWARE.
//
//******************************************************************************
#include "hd44780.h"
#include "stm32f4xx.h"
#include <stdio.h>
#include <stdarg.h>
 
#define LCD_GPIO GPIOE
 
#define LCD_D4 GPIO_Pin_10
#define LCD_D5 GPIO_Pin_11
#define LCD_D6 GPIO_Pin_12
#define LCD_D7 GPIO_Pin_13
 
#define LCD_RS GPIO_Pin_7
#define LCD_RW GPIO_Pin_8
#define LCD_EN GPIO_Pin_9
extern GPIO_InitTypeDef GPIO_InitStructure;
 
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteNibble(u8 nibbleToWrite)
{
    GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_SET);
    GPIO_WriteBit(LCD_GPIO, LCD_D4, (nibbleToWrite & 0x01));
    GPIO_WriteBit(LCD_GPIO, LCD_D5, (nibbleToWrite & 0x02));
    GPIO_WriteBit(LCD_GPIO, LCD_D6, (nibbleToWrite & 0x04));
    GPIO_WriteBit(LCD_GPIO, LCD_D7, (nibbleToWrite & 0x08));
    GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_RESET);
     
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
u8 LCD_ReadNibble(void)
{
    u8 tmp = 0;
    GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_SET);
    tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D4) << 0);
    tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D5) << 1);
    tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D6) << 2);
    tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D7) << 3);
    GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_RESET);
    return tmp;
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
u8 LCD_ReadStatus(void)
{
    u8 status = 0;
     
    GPIO_InitStructure.GPIO_Pin   =  LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7;
    GPIO_InitStructure.GPIO_Mode  =  GPIO_Mode_IN;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_Init(LCD_GPIO, &GPIO_InitStructure);
     
    GPIO_WriteBit(LCD_GPIO, LCD_RW, Bit_SET);
    GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_RESET);
     
    status |= (LCD_ReadNibble() << 4);
    status |= LCD_ReadNibble();
     
    GPIO_InitStructure.GPIO_Pin   =  LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_Init(LCD_GPIO, &GPIO_InitStructure);
     
    return status;
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteData(u8 dataToWrite)
{
    GPIO_WriteBit(LCD_GPIO, LCD_RW, Bit_RESET);
    GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_SET);
     
    LCD_WriteNibble(dataToWrite >> 4);
    LCD_WriteNibble(dataToWrite & 0x0F);
     
    while(LCD_ReadStatus() & 0x80);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteCommand(u8 commandToWrite)
{
    GPIO_WriteBit(LCD_GPIO, LCD_RW | LCD_RS, Bit_RESET);
    LCD_WriteNibble(commandToWrite >> 4);
    LCD_WriteNibble(commandToWrite & 0x0F);
     
    while(LCD_ReadStatus() & 0x80);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_DefineCharacter(char index, char * pattern)
{
    char i ;
    LCD_WriteCommand(HD44780_CGRAM_SET + (8 * index));
    for(i = 0; i < 8; i++)
        LCD_WriteData(*(pattern + i));
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
 
void LCD_WriteText(char * text)
{
    while((*text !=0) && (*text != 13))
        LCD_WriteData(*text++);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_GoTo(unsigned char x, unsigned char y)
{
    LCD_WriteCommand(HD44780_DDRAM_SET | (x + (0x40 * y)));
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteTextXY(char * text, u8 x, u8 y)
{
    LCD_GoTo(x,y);
    LCD_WriteText(text);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
 
void LCD_Clear(void)
{
    LCD_WriteCommand(HD44780_CLEAR);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteBinary(u32 var, u8 bitCount)
{
    s8 i;
 
    for(i = (bitCount - 1); i >= 0; i--)
    {
        LCD_WriteData((var & (1 << i))?'1':'0');
    }
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_ShiftLeft(void)
{
    LCD_WriteCommand(HD44780_DISPLAY_CURSOR_SHIFT | HD44780_SHIFT_LEFT | HD44780_SHIFT_DISPLAY);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_ShiftRight(void)
{
    LCD_WriteCommand(HD44780_DISPLAY_CURSOR_SHIFT | HD44780_SHIFT_RIGHT | HD44780_SHIFT_DISPLAY);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_Initialize(void)
{
    vu8 i = 0;
    vu32 delayCnt = 0;
    GPIO_InitStructure.GPIO_Pin=LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7 | LCD_RS | LCD_RW | LCD_EN;
    GPIO_InitStructure.GPIO_OType= GPIO_OType_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
    GPIO_InitStructure.GPIO_PuPd= GPIO_PuPd_NOPULL;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
    GPIO_Init (LCD_GPIO, & GPIO_InitStructure);
    GPIO_Write (LCD_GPIO,0);
     
    GPIO_ResetBits(LCD_GPIO, LCD_RS | LCD_EN | LCD_RW);
     
    for(delayCnt = 0; delayCnt < 300000; delayCnt++);
     
    for(i = 0; i < 3; i++)             
    {
        LCD_WriteNibble(0x03);           
        for(delayCnt = 0;delayCnt < 30000; delayCnt++);
    }
 
    LCD_WriteNibble(0x02);            
     
    for(delayCnt = 0;delayCnt < 6000; delayCnt++);
        
    LCD_WriteCommand(HD44780_FUNCTION_SET |
                     HD44780_FONT5x7 |
                     HD44780_TWO_LINE |
                     HD44780_4_BIT);
     
    LCD_WriteCommand(HD44780_DISPLAY_ONOFF |
                     HD44780_DISPLAY_OFF);
     
    LCD_WriteCommand(HD44780_CLEAR);
     
    LCD_WriteCommand(HD44780_ENTRY_MODE |
                     HD44780_EM_SHIFT_CURSOR |
                     HD44780_EM_INCREMENT);
     
    LCD_WriteCommand(HD44780_DISPLAY_ONOFF |
                     HD44780_DISPLAY_ON |
                     HD44780_CURSOR_OFF |
                     HD44780_CURSOR_NOBLINK);
}
 
 
 
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
//
 
 
 
 
//hd44780.h
#include "stm32f4xx.h"
 
#define HD44780_CLEAR                      0x01
 
#define HD44780_HOME                          0x02
 
#define HD44780_ENTRY_MODE                 0x04
    #define HD44780_EM_SHIFT_CURSOR     0
    #define HD44780_EM_SHIFT_DISPLAY       1
    #define HD44780_EM_DECREMENT           0
    #define HD44780_EM_INCREMENT           2
 
#define HD44780_DISPLAY_ONOFF              0x08
    #define HD44780_DISPLAY_OFF        0
    #define HD44780_DISPLAY_ON             4
    #define HD44780_CURSOR_OFF             0
    #define HD44780_CURSOR_ON              2
    #define HD44780_CURSOR_NOBLINK     0
    #define HD44780_CURSOR_BLINK           1
 
#define HD44780_DISPLAY_CURSOR_SHIFT    0x10
    #define HD44780_SHIFT_CURSOR           0
    #define HD44780_SHIFT_DISPLAY          8
    #define HD44780_SHIFT_LEFT             0
    #define HD44780_SHIFT_RIGHT        4
 
#define HD44780_FUNCTION_SET               0x20
    #define HD44780_FONT5x7                0
    #define HD44780_FONT5x10               4
    #define HD44780_ONE_LINE               0
    #define HD44780_TWO_LINE               8
    #define HD44780_4_BIT                  0
    #define HD44780_8_BIT                  16
 
#define HD44780_CGRAM_SET                  0x40
 
#define HD44780_DDRAM_SET                  0x80
 
void LCD_Initialize(void);
void LCD_WriteData(u8);
void LCD_WriteText(char *);
void LCD_WriteTextXY(char * , u8 , u8);
void LCD_GoTo(unsigned char, unsigned char);
void LCD_WriteBinary(u32 var, u8 bitCount);
//main.c
#include "stm32f4_discovery.h"
#include "stm32f4xx.h"
#include "hd44780.h"
GPIO_InitTypeDef GPIO_InitStructure;
int main (void){
    NVIC_SetVectorTable (NVIC_VectTab_FLASH, 0x0);
    RCC_AHB1PeriphClockCmd (RCC_AHB1Periph_GPIOE, ENABLE);
    LCD_Initialize ();
    //LCD_GoTo (0,0);
    LCD_WriteText ("work?");
    while (1){
        Delaynus(3000);
        LCD_WriteText ("work?");
    }
}

Yukarıdaki kodları F4 discovery de uyguladım. Sorunsuz çalıştı. Fakat rw ucunu kullanmak istemiyorum. rw tanımlamalarını kaldırdım ve lcd nin rw ucunu şaseye bağladım. Bir türlü çalıştıramadım. Görmediğim ya da anlamadığım bir yer var muhtemelen. Yardımcı olabilecek arkadaş varmı acaba?
Teşekkürler.

[respected]

//HD44780.c
#include "HD44780.h"
#include "stm32f4xx.h"
#include <stdio.h>
#include <stdarg.h>

#define LCD_GPIO GPIOC

#define LCD_D4 GPIO_Pin_6
#define LCD_D5 GPIO_Pin_7
#define LCD_D6 GPIO_Pin_8
#define LCD_D7 GPIO_Pin_9

#define LCD_RS GPIO_Pin_5
#define LCD_EN GPIO_Pin_4


extern GPIO_InitTypeDef GPIO_InitStructure;
extern GPIO_InitTypeDef GPIO_InitStructure;
 
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteNibble(u8 nibbleToWrite)
{
	 u8 d1,d2,d3,d4; 
    GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_SET);	
   d1=(nibbleToWrite&1);
   d2=(nibbleToWrite&2);
   d3=(nibbleToWrite&4);
   d4=(nibbleToWrite&8);   
   GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_SET);
   if(d1==1)GPIO_WriteBit(LCD_GPIO, LCD_D4, Bit_SET);
      else GPIO_WriteBit(LCD_GPIO, LCD_D4, Bit_RESET);
   if(d2==2)GPIO_WriteBit(LCD_GPIO, LCD_D5, Bit_SET);
      else GPIO_WriteBit(LCD_GPIO, LCD_D5, Bit_RESET);
   if(d3==4)GPIO_WriteBit(LCD_GPIO, LCD_D6, Bit_SET);
      else GPIO_WriteBit(LCD_GPIO, LCD_D6, Bit_RESET);
   if(d4==8)GPIO_WriteBit(LCD_GPIO, LCD_D7, Bit_SET);
      else GPIO_WriteBit(LCD_GPIO, LCD_D7, Bit_RESET); 
//     GPIO_WriteBit(LCD_GPIO, LCD_D4, (nibbleToWrite & 0x01));
//     GPIO_WriteBit(LCD_GPIO, LCD_D5, (nibbleToWrite & 0x02));
//     GPIO_WriteBit(LCD_GPIO, LCD_D6, (nibbleToWrite & 0x04));
//     GPIO_WriteBit(LCD_GPIO, LCD_D7, (nibbleToWrite & 0x08));
    GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_RESET);
     
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
// u8 LCD_ReadNibble(void)
// {
//     u8 tmp = 0;
//     GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_SET);
//     tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D4) << 0);
//     tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D5) << 1);
//     tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D6) << 2);
//     tmp |= (GPIO_ReadInputDataBit(LCD_GPIO, LCD_D7) << 3);
//     GPIO_WriteBit(LCD_GPIO, LCD_EN, Bit_RESET);
//     return tmp;
// }
// //-----------------------------------------------------------------------------
// //
// //-----------------------------------------------------------------------------
// u8 LCD_ReadStatus(void)
// {
//     u8 status = 0;
//      
//     GPIO_InitStructure.GPIO_Pin   =  LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7;
//     GPIO_InitStructure.GPIO_Mode  =  GPIO_Mode_IN;
//     GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
//     GPIO_Init(LCD_GPIO, &GPIO_InitStructure);
//      
//     GPIO_WriteBit(LCD_GPIO, LCD_RW, Bit_SET);
//     GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_RESET);
//      
//     status |= (LCD_ReadNibble() << 4);
//     status |= LCD_ReadNibble();
//      
//     GPIO_InitStructure.GPIO_Pin   =  LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7;
//     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
//     GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
//     GPIO_Init(LCD_GPIO, &GPIO_InitStructure);
//      
//     return status;
// }
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteData(u8 dataToWrite)
{
//    GPIO_WriteBit(LCD_GPIO, LCD_RW, Bit_RESET);
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_RESET);
		Delay(5);	
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_SET);     
    LCD_WriteNibble(dataToWrite >> 4);
    LCD_WriteNibble(dataToWrite & 0x0F);
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_RESET);
		Delay(5);	
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_SET);

}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteCommand(u8 commandToWrite)
{
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_SET); 
		Delay(5);  
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_RESET);
    LCD_WriteNibble(commandToWrite >> 4);
    LCD_WriteNibble(commandToWrite & 0x0F);
   	GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_RESET);
		Delay(5);	
		GPIO_WriteBit(LCD_GPIO, LCD_RS, Bit_SET); 

}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_DefineCharacter(char index, char * pattern)
{
    char i ;
    LCD_WriteCommand(HD44780_CGRAM_SET + (8 * index));
    for(i = 0; i < 8; i++)
        LCD_WriteData(*(pattern + i));
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
 
void LCD_WriteText(char * text)
{
    while((*text !=0) && (*text != 13))
        LCD_WriteData(*text++);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void lcd_gotoxy(unsigned char x, unsigned char y)
{
    LCD_WriteCommand(HD44780_DDRAM_SET | (x + (0x40 * y)));
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteTextXY(char * text, u8 x, u8 y)
{
    lcd_gotoxy(x,y);
    LCD_WriteText(text);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
 
void LCD_Clear(void)
{
    LCD_WriteCommand(HD44780_CLEAR);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_WriteBinary(u32 var, u8 bitCount)
{
    s8 i;
 
    for(i = (bitCount - 1); i >= 0; i--)
    {
        LCD_WriteData((var & (1 << i))?'1':'0');
    }
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_ShiftLeft(void)
{
    LCD_WriteCommand(HD44780_DISPLAY_CURSOR_SHIFT | HD44780_SHIFT_LEFT | HD44780_SHIFT_DISPLAY);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void LCD_ShiftRight(void)
{
    LCD_WriteCommand(HD44780_DISPLAY_CURSOR_SHIFT | HD44780_SHIFT_RIGHT | HD44780_SHIFT_DISPLAY);
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
void lcd_init(void)
{
    vu8 i = 0;
    vu32 delayCnt = 0;
    GPIO_InitStructure.GPIO_Pin=LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7 | LCD_RS | LCD_EN;
    GPIO_InitStructure.GPIO_OType= GPIO_OType_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
    GPIO_InitStructure.GPIO_PuPd= GPIO_PuPd_NOPULL;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
    GPIO_Init (LCD_GPIO, & GPIO_InitStructure);
    GPIO_Write (LCD_GPIO,0);
     
    GPIO_ResetBits(LCD_GPIO, LCD_RS | LCD_EN );
     
    for(delayCnt = 0; delayCnt < 300000; delayCnt++);
     
    for(i = 0; i < 3; i++)             
    {
        LCD_WriteNibble(0x03);           
        for(delayCnt = 0;delayCnt < 30000; delayCnt++);
    }
 
    LCD_WriteNibble(0x02);            
     
    for(delayCnt = 0;delayCnt < 6000; delayCnt++);
        
    LCD_WriteCommand(HD44780_FUNCTION_SET |
                     HD44780_FONT5x7 |
                     HD44780_TWO_LINE |
                     HD44780_4_BIT);
     
    LCD_WriteCommand(HD44780_DISPLAY_ONOFF |
                     HD44780_DISPLAY_OFF);
     
    LCD_WriteCommand(HD44780_CLEAR);
     
    LCD_WriteCommand(HD44780_ENTRY_MODE |
                     HD44780_EM_SHIFT_CURSOR |
                     HD44780_EM_INCREMENT);
     
    LCD_WriteCommand(HD44780_DISPLAY_ONOFF |
                     HD44780_DISPLAY_ON |
                     HD44780_CURSOR_OFF |
                     HD44780_CURSOR_NOBLINK);
}

mesaj birleştirme:: 28 Mart 2013, 23:40:36

//hd44780.h
#include "stm32f4xx.h"
 
#define HD44780_CLEAR                      0x01
 
#define HD44780_HOME                          0x02
 
#define HD44780_ENTRY_MODE                 0x04
    #define HD44780_EM_SHIFT_CURSOR     0
    #define HD44780_EM_SHIFT_DISPLAY       1
    #define HD44780_EM_DECREMENT           0
    #define HD44780_EM_INCREMENT           2
 
#define HD44780_DISPLAY_ONOFF              0x08
    #define HD44780_DISPLAY_OFF        0
    #define HD44780_DISPLAY_ON             4
    #define HD44780_CURSOR_OFF             0
    #define HD44780_CURSOR_ON              2
    #define HD44780_CURSOR_NOBLINK     0
    #define HD44780_CURSOR_BLINK           1
 
#define HD44780_DISPLAY_CURSOR_SHIFT    0x10
    #define HD44780_SHIFT_CURSOR           0
    #define HD44780_SHIFT_DISPLAY          8
    #define HD44780_SHIFT_LEFT             0
    #define HD44780_SHIFT_RIGHT        4
 
#define HD44780_FUNCTION_SET               0x20
    #define HD44780_FONT5x7                0
    #define HD44780_FONT5x10               4
    #define HD44780_ONE_LINE               0
    #define HD44780_TWO_LINE               8
    #define HD44780_4_BIT                  0
    #define HD44780_8_BIT                  16
 
#define HD44780_CGRAM_SET                  0x40
 
#define HD44780_DDRAM_SET                  0x80
 
void lcd_init(void);
void LCD_WriteData(u8);
void LCD_WriteText(char *);
void LCD_WriteTextXY(char * , u8 , u8);
void lcd_gotoxy(unsigned char, unsigned char);
void LCD_WriteBinary(u32 var, u8 bitCount);