BPI G1 OLED Module Use Instructions


(tony) #1

1.Parameter Description Operating Voltage:DC 3.3V Maximum power:111 mW Display Color: Yellow & Blue Dot Matrix:128×64 Driver IC: SSD1306ZC Interface: I2C Wide range of operating temperature: -40℃to 70℃

2.Module Pin

3.Module Schematic 4.OLED modules connected on BPI G1 Interface 5.I2C Drive timing 6.BPI G1 CC2530 drive OLED example code lcd.c

#include "hal_types.h"
#include "hal_assert.h"
#include <string.h>

#define LCD_SCL P1_2       //SCLK  Clk D0(SCLK)
#define LCD_SDA P1_3       //SDA   D1(MOSI) Data
#define LCD_RST P1_7       //_RES  hardware reset   Reset 
#define LCD_DC  P0_0       //A0  H/L Switch Pin,H:Data,L:Command

#define XLevelL            0x00
#define XLevelH            0x10
#define XLevel             ((XLevelH&0x0F)*16+XLevelL)
#define Max_Column         128
#define Max_Row            64
#define Brightness         0xCF 
#define X_WIDTH            128
#define Y_WIDTH            64

#define LCD_MAX_BUF        25
#define HAL_LCD_MAX_CHARS  16   // Max number of chars on a single LCD line 


const unsigned char F8X16[]=	  
{
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
  0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
  0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
  0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
  0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
  0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
  0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
  0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
  0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
  0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
  0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
  0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
  0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
  0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
  0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
  0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
  0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
  0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
  0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
  0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
  0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
  0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
  0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
  0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
  0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
  0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
  0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
  0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
  0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
  0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
  0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
  0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
  0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
  0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
  0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
  0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
  0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
  0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
  0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
  0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
  0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
  0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
  0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
  0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
  0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
  0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
  0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
  0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
  0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
  0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
  0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
  0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
  0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
  0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
  0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
  0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
  0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
  0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
  0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
  0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
  0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
  0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
  0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
  0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
  0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
  0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
  0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
  0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
  0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
  0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
  0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
  0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
  0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
  0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
  0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
  0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};

void HalLcd_HW_Init(void);
void HalLcd_HW_WaitUs(uint16 i);
void HalLcd_HW_Clear(void);
void HalLcd_HW_Control(uint8 cmd);
void HalLcd_HW_Write(uint8 data);
void HalLcd_HW_SetContrast(uint8 value);
void HalLcd_HW_WriteChar(uint8 line, uint8 col, char text);
void HalLcd_HW_WriteLine(uint8 line, const char *pText);

void DelayMS(unsigned int msec);
void LCD_DLY_ms(unsigned int ms);
void LCD_WrDat(unsigned char dat);
void LCD_WrCmd(unsigned char cmd);
void LCD_Set_Pos(unsigned char x, unsigned char y);
void LCD_Fill(unsigned char bmp_dat) ;
void LCD_CLS(void);
void LcdClearLine(unsigned char y, unsigned char count);

void LCD_P8x16Str(unsigned char x, unsigned char y,unsigned char ch[]);


/**************************************************************************************************
 * @fn      HalLcdInit
 *
 * @brief   Initilize LCD Service
 *
 * @param   init - pointer to void that contains the initialized value
 *
 * @return  None
 **************************************************************************************************/
void HalLcdInit(void)
{
  HalLcd_HW_Init();
}

/**************************************************************************************************
 * @fn      HalLcdWriteValue
 *
 * @brief   Write a value to the LCD
 *
 * @param   value  - value that will be displayed
 *          radix  - 8, 10, 16
 *          option - display options
 *
 * @return  None
 **************************************************************************************************/
void HalLcdWriteValue ( uint32 value, const uint8 radix, uint8 option)
{
  uint8 buf[LCD_MAX_BUF];

  _ltoa( value, &buf[0], radix );
  HalLcdWriteString( (char*)buf, option );
}

/**************************************************************************************************
 * @fn      HalLcdWriteScreen
 *
 * @brief   Write a value to the LCD
 *
 * @param   line1  - string that will be displayed on line 1
 *          line2  - string that will be displayed on line 2
 *
 * @return  None
 **************************************************************************************************/
void HalLcdWriteScreen( char *line1, char *line2 )
{
  HalLcdWriteString( line1, 1 );
  HalLcdWriteString( line2, 2 );
}

/**************************************************************************************************
 * @fn      HalLcdWriteStringValue
 *
 * @brief   Write a string followed by a value to the LCD
 *
 * @param   title  - Title that will be displayed before the value
 *          value  - value
 *          format - redix
 *          line   - line number
 *
 * @return  None
 **************************************************************************************************/
void HalLcdWriteStringValue( char *title, uint16 value, uint8 format, uint8 line )
{
  uint8 tmpLen;
  uint8 buf[LCD_MAX_BUF];
  uint32 err;

  tmpLen = (uint8)osal_strlen( (char*)title );
  osal_memcpy( buf, title, tmpLen );
  //buf[tmpLen] = ' ';
  err = (uint32)(value);
  _ltoa( err, &buf[tmpLen], format );
  HalLcdWriteString( (char*)buf, line );		
}

/**************************************************************************************************
 * @fn      HalLcdWriteStringValue
 *
 * @brief   Write a string followed by a value to the LCD
 *
 * @param   title   - Title that will be displayed before the value
 *          value1  - value #1
 *          format1 - redix of value #1
 *          value2  - value #2
 *          format2 - redix of value #2
 *          line    - line number
 *
 * @return  None
 **************************************************************************************************/
void HalLcdWriteStringValueValue( char *title, uint16 value1, uint8 format1,
                                  uint16 value2, uint8 format2, uint8 line )
{
  uint8 tmpLen;
  uint8 buf[LCD_MAX_BUF];
  uint32 err;

  tmpLen = (uint8)osal_strlen( (char*)title );
  if ( tmpLen )
  {
    osal_memcpy( buf, title, tmpLen );
    //buf[tmpLen++] = ' ';
  }

  err = (uint32)(value1);
  _ltoa( err, &buf[tmpLen], format1 );
  tmpLen = (uint8)osal_strlen( (char*)buf );

  buf[tmpLen++] = ',';
  buf[tmpLen++] = ' ';
  err = (uint32)(value2);
  _ltoa( err, &buf[tmpLen], format2 );

  HalLcdWriteString( (char *)buf, line );		
}

void DelayMS(unsigned int msec)
{ 
    unsigned int i,j;
    
    for (i=0; i<msec; i++)
        for (j=0; j<530; j++);
}

void LCD_DLY_ms(unsigned int ms)
{                         
    unsigned int a;
    while(ms)
    {
        a=1800;
        while(a--);
        ms--;
    }
    return;
}

void LCD_WrDat(unsigned char dat)     
{
    unsigned char i=8, temp=0;
    LCD_DC=1;  
    for(i=0;i<8;i++)
    {
        LCD_SCL=0;  
        
        temp = dat&0x80;
        if (temp == 0)
        {
            LCD_SDA = 0;
        }
        else
        {
            LCD_SDA = 1;
        }
        LCD_SCL=1;             
        dat<<=1;    
    }
}
                                        
void LCD_WrCmd(unsigned char cmd)
{
    unsigned char i=8, temp=0;
    LCD_DC=0;
    for(i=0;i<8;i++)
    { 
        LCD_SCL=0; 
       
        temp = cmd&0x80;
        if (temp == 0)
        {
            LCD_SDA = 0;
        }
        else
        {
            LCD_SDA = 1;
        }
        LCD_SCL=1;
        cmd<<=1;;        
    }     
}

void LCD_Set_Pos(unsigned char x, unsigned char y) 
{ 
    LCD_WrCmd(0xb0+y);
    LCD_WrCmd(((x&0xf0)>>4)|0x10);
    LCD_WrCmd((x&0x0f)|0x01); 
} 

void LCD_Fill(unsigned char bmp_dat) 
{
    unsigned char y,x;
    for(y=0;y<8;y++)
    {
        LCD_WrCmd(0xb0+y);
        LCD_WrCmd(0x01);
        LCD_WrCmd(0x10);
        for(x=0;x<X_WIDTH;x++)
            LCD_WrDat(bmp_dat);
    }
}

void LCD_CLS(void)
{
    unsigned char y,x;    
    for(y=0;y<8;y++)
    {
        LCD_WrCmd(0xb0+y);
        LCD_WrCmd(0x01);
        LCD_WrCmd(0x10); 
        for(x=0;x<X_WIDTH;x++)
            LCD_WrDat(0);
    }
}

void LcdClearLine(unsigned char y, unsigned char count)
{
    unsigned char x,j;	
    
    for(j=y; j<(y+count); j++)
    {
        LCD_WrCmd(0xb0+j);
        LCD_WrCmd(0x01);
        LCD_WrCmd(0x10); 
        for(x=0;x<X_WIDTH;x++)
           LCD_WrDat(0);
    }
}

void HalLcdWriteString (char *str, uint8 option)
{
  uint8 x=0,y=0,strLen;
  uint8 lcdBuf[HAL_LCD_MAX_CHARS+1];
    
  x=0;
  y = (option-1)*2;
  strLen = (uint8)osal_strlen( (char*)str );

  /* Check boundries */
  if ( strLen > HAL_LCD_MAX_CHARS )
    strLen = HAL_LCD_MAX_CHARS;

  osal_memset(lcdBuf, 0, HAL_LCD_MAX_CHARS+1);
  osal_memcpy( lcdBuf, str, strLen );
  
  LcdClearLine(y, 2);
  LCD_P8x16Str(x, y, lcdBuf);
}

void LCD_P8x16Str(unsigned char x, unsigned char y,unsigned char ch[])
{
    unsigned char c=0,i=0,j=0;
    
    while (ch[j]!='\0')
    {    
        c =ch[j]-32;
        if(x>120){
          x=0;
          y++;
        }
        LCD_Set_Pos(x,y);    
        for(i=0;i<8;i++)     
            LCD_WrDat(F8X16[c*16+i]);
        LCD_Set_Pos(x,y+1);    
        for(i=0;i<8;i++)     
            LCD_WrDat(F8X16[c*16+i+8]);  
        x+=8;
        j++;
    }
}

void HalLcd_HW_WaitUs(uint16 microSecs)
{
  while(microSecs--)
  {
    /* 32 NOPs == 1 usecs */
    asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop"); asm("nop"); asm("nop");
  }
}

void HalLcd_HW_Init(void)
{
    P0SEL &= 0xFE; 
    P0DIR |= 0x01; 

    P1SEL &= 0x73; 
    P1DIR |= 0x8C;
    
    LCD_SCL=1;
    LCD_RST=0;
    LCD_DLY_ms(50);
    LCD_RST=1;      
    LCD_WrCmd(0xae);//--turn off oled panel
    LCD_WrCmd(0x00);//---set low column address
    LCD_WrCmd(0x10);//---set high column address
    LCD_WrCmd(0x40);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
    LCD_WrCmd(0x81);//--set contrast control register
    LCD_WrCmd(0xcf); // Set SEG Output Current Brightness
    LCD_WrCmd(0xa1);//--Set SEG/Column Mapping     
    LCD_WrCmd(0xc8);//Set COM/Row Scan Direction  
    LCD_WrCmd(0xa6);//--set normal display
    LCD_WrCmd(0xa8);//--set multiplex ratio(1 to 64)
    LCD_WrCmd(0x3f);//--1/64 duty
    LCD_WrCmd(0xd3);//-set display offset    Shift Mapping RAM Counter (0x00~0x3F)
    LCD_WrCmd(0x00);//-not offset
    LCD_WrCmd(0xd5);//--set display clock divide ratio/oscillator frequency
    LCD_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
    LCD_WrCmd(0xd9);//--set pre-charge period
    LCD_WrCmd(0xf1);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
    LCD_WrCmd(0xda);//--set com pins hardware configuration
    LCD_WrCmd(0x12);
    LCD_WrCmd(0xdb);//--set vcomh
    LCD_WrCmd(0x40);//Set VCOM Deselect Level
    LCD_WrCmd(0x20);//-Set Page Addressing Mode (0x00/0x01/0x02)
    LCD_WrCmd(0x02);//
    LCD_WrCmd(0x8d);//--set Charge Pump enable/disable
    LCD_WrCmd(0x14);//--set(0x10) disable
    LCD_WrCmd(0xa4);// Disable Entire Display On (0xa4/0xa5)
    LCD_WrCmd(0xa6);// Disable Inverse Display On (0xa6/a7) 
    LCD_WrCmd(0xaf);//--turn on oled panel
    LCD_Fill(0x00);  //clear oled
    LCD_Set_Pos(0,0); }