diff options
Diffstat (limited to 'uc_str912/prj_test_lcd/src/lcd_lib_91x.c')
| -rw-r--r-- | uc_str912/prj_test_lcd/src/lcd_lib_91x.c | 455 |
1 files changed, 455 insertions, 0 deletions
diff --git a/uc_str912/prj_test_lcd/src/lcd_lib_91x.c b/uc_str912/prj_test_lcd/src/lcd_lib_91x.c new file mode 100644 index 0000000..7c01f53 --- /dev/null +++ b/uc_str912/prj_test_lcd/src/lcd_lib_91x.c @@ -0,0 +1,455 @@ +/******************** (C) COPYRIGHT 2007 PROPOX ********************************
+* File Name : lcd_lib_91x.c
+* Author : PROPOX Team
+* Date First Issued : 09/24/2007 : Version 1.0
+* Description : This file provides all the 2x16 LCD functions.
+********************************************************************************
+* History:
+********************************************************************************
+* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
+* AS A RESULT, PROPOX SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT OR
+* CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
+* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
+* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+*******************************************************************************/
+
+/* Includes ------------------------------------------------------------------*/
+#include "91x_lib.h"
+#include "91x_gpio.h"
+#include "91x_map.h"
+#include "91x_scu.h"
+#include "lcd_lib_91x.h"
+
+
+/*******************************************************************************
+* Function Name : delay
+* Description : Delay (opoznienie)
+*
+* Input : time - number of cycles
+* Output : None
+* Return : None
+*******************************************************************************/
+void delay(int time)
+{
+ while(time--)
+ asm volatile ("nop");
+}
+
+/*******************************************************************************
+* Function Name : LCDinit
+* Description : Inicialize LCD (Inicjalizacja LCD)
+* (4 bit data, 2 lines, characters 5x7, blinking cursor on)
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDinit(void)
+{
+ GPIO_Write(GPIO8, 0x00);
+ delay(375000); //15ms
+ //--------- Write 0x03 -----------
+ D7_reset;
+ D6_reset;
+ D5_set;
+ D4_set;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(125000); //5ms
+ //--------- Write 0x03 -----------
+ D7_reset;
+ D6_reset;
+ D5_set;
+ D4_set;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //--------- Write 0x03 -----------
+ D7_reset;
+ D6_reset;
+ D5_set;
+ D4_set;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //--------- Enable Four Bit Mode ----------
+ D7_reset;
+ D6_reset;
+ D5_set;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //---------- Set Interface Length ----------
+ //Write 0x2 - 4 bits
+ D7_reset;
+ D6_reset;
+ D5_set;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //Write 0x8 - 2 lines, 5x7
+ D7_set;
+ D6_reset;
+ D5_reset;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //---------- Turn off the Display ----------
+ //Write 0x0
+ D7_reset;
+ D6_reset;
+ D5_reset;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //Write 0x8
+ D7_set;
+ D6_reset;
+ D5_reset;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //------------ Clear the Display -----------
+ //Write 0x0
+ D7_reset;
+ D6_reset;
+ D5_reset;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //Write 0x1
+ D7_reset;
+ D6_reset;
+ D5_reset;
+ D4_set;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //-------- Set Cursor Move Direction --------
+ //Write 0x0
+ D7_reset;
+ D6_reset;
+ D5_reset;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //Write 0x6 - Increment the Cursor
+ D7_reset;
+ D6_set;
+ D5_set;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //---------- Enable Display/Cursor ----------
+ //Write 0x0
+ D7_reset;
+ D6_reset;
+ D5_reset;
+ D4_reset;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+ //Write 0xF - Display on, cursor on, blink on
+ D7_set;
+ D6_set;
+ D5_set;
+ D4_set;
+ E_set;
+ delay(25000); //1ms
+ E_reset;
+ delay(25000); //1ms
+}
+
+/*******************************************************************************
+* Function Name : LCDsendChar
+* Description : Send Char to LCD (Wyslanie znaku na LCD)
+*
+* Input : ch - is a ascii code of character or char from char_code.h
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDsendChar(u8 ch)
+{
+ //4 MSB bits
+ //4 starsze bity
+ GPIO_Write(GPIO8, (ch>>4) & 0x0f);
+ RS_set;
+ E_set;
+ delay(25000);
+ E_reset;
+ delay(25000);
+ //4 LSB bits
+ //4 mlodsze bity
+ GPIO_Write(GPIO8, ch & 0x0f);
+ RS_set;
+ E_set;
+ delay(25000);
+ E_reset;
+ delay(25000);
+}
+
+/*******************************************************************************
+* Function Name : LCDsendCommand
+* Description : Send Command to LCD (Wyslanie rozkazu do LCD)
+*
+* Input : cmd - is a ascii code of command
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDsendCommand(u8 cmd)
+{
+ //4 MSB bits
+ //4 starsze bity
+ GPIO_Write(GPIO8, (cmd>>4) & 0x0f);
+ RS_reset;
+ E_set;
+ delay(25000);
+ E_reset;
+ delay(25000);
+ //4 LSB bits
+ //4 mlodsze bity
+ GPIO_Write(GPIO8, cmd & 0x0f);
+ RS_reset;
+ E_set;
+ delay(25000);
+ E_reset;
+ delay(25000);
+}
+
+/*******************************************************************************
+* Function Name : LCDclr
+* Description : Clear LCD (Czyszczenie LCD)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDclr(void)
+{
+ LCDsendCommand(0x01);
+}
+
+/*******************************************************************************
+* Function Name : LCDhome
+* Description : LCD cursor home (Przesuniecie kursora na pozycje poczatkowa)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDhome(void)
+{
+ LCDsendCommand(0x02);
+}
+
+/*******************************************************************************
+* Function Name : LCDstring
+* Description : Outputs string to LCD (Wyswietl ciag znakow na LCD)
+*
+* Input : data - pointer to start of table, nBytes - nuber of bytes to send
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDstring(u8* data, u8 nBytes)
+{
+ u8 count;
+ //check to make sure we have a good pointer
+ //sprawdzenie zgodnosci wskaznika
+ if (!data) return;
+
+ //print data
+ //wyswietl znaki
+ for(count=0; count<nBytes; count++)
+ {
+ LCDsendChar(data[count]);
+ }
+}
+
+/*******************************************************************************
+* Function Name : LCDGotoXY
+* Description : Cursor to X Y position (Kursor na pozycje XY)
+*
+* Input : row - x position, column - y position
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDGotoXY(u8 row, u8 column)
+{
+#define LCD_DDRAM 7
+
+#define LCD_LINE0_DDRAMADDR 0x00
+#define LCD_LINE1_DDRAMADDR 0x40
+#define LCD_LINE2_DDRAMADDR 0x14
+#define LCD_LINE3_DDRAMADDR 0x54
+
+ u8 DDRAMAddr;
+ //remap lines into proper order
+ //wyznaczenie adresu polozenia
+ switch(column)
+ {
+ case 0: DDRAMAddr = LCD_LINE0_DDRAMADDR + row; break;
+ case 1: DDRAMAddr = LCD_LINE1_DDRAMADDR + row; break;
+ case 2: DDRAMAddr = LCD_LINE2_DDRAMADDR + row; break;
+ case 3: DDRAMAddr = LCD_LINE3_DDRAMADDR + row; break;
+ default: DDRAMAddr = LCD_LINE0_DDRAMADDR + row;
+ }
+ //set data address
+ //wyslanie adresu
+ LCDsendCommand(1<<LCD_DDRAM | DDRAMAddr);
+}
+
+/*******************************************************************************
+* Function Name : LCDshiftLeft
+* Description : Scrol n of characters Right (Przsuniecie znakow o n w prawo)
+*
+* Input : right - number of characters
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDshiftLeft(u8 right)
+{
+u8 count;
+ for (count=0;count<right;count++)
+ {
+ LCDsendCommand(0x1E);
+ }
+}
+
+/*******************************************************************************
+* Function Name : LCDshiftRight
+* Description : Scrol n of characters Left (Przsuniecie znakow o n w lewo)
+*
+* Input : left - number of characters
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDshiftRight(u8 left)
+{
+u8 count;
+ for (count=0;count<left;count++)
+ {
+ LCDsendCommand(0x18);
+ }
+}
+
+/*******************************************************************************
+* Function Name : LCDcursorOn
+* Description : Displays LCD cursor (Kursor aktywny)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDcursorOn(void)
+{
+ LCDsendCommand(0x0E);
+}
+
+/*******************************************************************************
+* Function Name : LCDcursorOnBlink
+* Description : Displays LCD blinking cursor (Migajacy kursor aktywny)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDcursorOnBlink(void)
+{
+ LCDsendCommand(0x0F);
+}
+
+/*******************************************************************************
+* Function Name : LCDcursorOFF
+* Description : Turns OFF cursor (Kursor wylaczony)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDcursorOFF(void)
+{
+ LCDsendCommand(0x0C);
+}
+
+/*******************************************************************************
+* Function Name : LCDblank
+* Description : Blanks LCD (LCD nieaktywny)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDblank(void)
+{
+ LCDsendCommand(0x08);
+}
+
+/*******************************************************************************
+* Function Name : LCDvisible
+* Description : Shows LCD (LCD aktywny)
+*
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDvisible(void)
+{
+ LCDsendCommand(0x0C);
+}
+
+/*******************************************************************************
+* Function Name : LCDcursorLeft
+* Description : Moves cursor by n poisitions left (Kursor n pozycji w lewo)
+*
+* Input : left - number of positions
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDcursorLeft(u8 left)
+{
+u8 count;
+ for (count=0;count<left;count++)
+ {
+ LCDsendCommand(0x10);
+ }
+}
+
+/*******************************************************************************
+* Function Name : LCDcursorRight
+* Description : Moves cursor by n poisitions right (Kursor n pozycji w prawo)
+*
+* Input : right - number of positions
+* Output : None
+* Return : None
+*******************************************************************************/
+void LCDcursorRight(u8 right)
+{
+u8 count;
+ for (count=0;count<right;count++)
+ {
+ LCDsendCommand(0x14);
+ }
+}
+
+/******************* (C) COPYRIGHT 2007 PROPOX *****END OF FILE****/
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