Thank You for your help.
Time means duration.

I have got another issue.

I have interface 16x2 lcd display (Hitachi’s HD44780) with this JLAC692 dev kit.

I added the c files and header files for this display to the SDK source code. ( The source code for LCD written by myself using bit bang)

I called the print function on the lcd.c file that i added from my main function

My main function is called by below method,

LOOP_DETECT_REGISTER(delay_1s ) =
{
    .time = 100,
    .fun  = main_function,
};

Now the LCD display is working. But when i play sounds through Bluetooth/usb/fm the sound get clipped. I thing it would be the timing issue on the OS.

My question is anyway to update my LCD data without affecting the playback functionality ?

Anybody could please help me ?

..................................................................................................................................................................
My main function is given below
..................................................................................................................................................................

void main_function()
{
  u8 IR_data = 0xff;
// LED_INIT_EN();
//  puts("\nWELCOME............MPZME...............................\n");

  LCD_clear_home();
  LCD_goto(1, 0);
  LCD_putstr("mpzzzzz");

  printf("0x%X",(u8)ir_code.wData);
  if ((u8)ir_code.wData == 0x6)
  {
      task_post_msg(NULL, 1, MSG_VOL_UP);
      ir_code.wData = 0xFF;
  }

}

..................................................................................................................................................................

My lcd.c file is given below
..................................................................................................................................................................

void LCD_init(void)
{

// delay(1632350); // 10ms

      LCD_RS_EN();
      LCD_EN_EN();
      LCD_DB4_EN();
      LCD_DB5_EN();
      LCD_DB6_EN();
      LCD_DB7_EN();

      LCD_RS_HIGH;
      LCD_EN_HIGH;
      LCD_DB4_HIGH;
      LCD_DB5_HIGH;
      LCD_DB6_HIGH;
      LCD_DB7_HIGH;

// delay(1632350); // 100ms

toggle_EN_pin();

LCD_RS_LOW;

LCD_DB7_LOW;
LCD_DB6_LOW;
LCD_DB5_HIGH;
LCD_DB4_HIGH;

toggle_EN_pin();

LCD_DB7_LOW;
LCD_DB6_LOW;
LCD_DB5_HIGH;
LCD_DB4_HIGH;

toggle_EN_pin();

LCD_DB7_LOW;
LCD_DB6_LOW;
LCD_DB5_HIGH;
LCD_DB4_HIGH;

toggle_EN_pin();

LCD_DB7_LOW;
LCD_DB6_LOW;
LCD_DB5_HIGH;
LCD_DB4_LOW;

toggle_EN_pin();

LCD_send((_4_pin_interface | _2_row_display | _5x7_dots), CMD);
LCD_send((display_on | cursor_off | blink_off), CMD);
LCD_send(clear_display, CMD);
LCD_send((cursor_direction_inc | display_no_shift), CMD);
}

void LCD_send(unsigned char value, unsigned char mode)
{
switch(mode)
{
    case DAT:
    {
    LCD_RS_HIGH;
    break;
    }
    case CMD:
    {
    LCD_RS_LOW;
    break;
    }
}

LCD_4bit_send(value);
}

void LCD_4bit_send(unsigned char lcd_data)
{
unsigned char temp = 0;

temp = ((lcd_data & 0x80) >> 7);

switch(temp)
{
    case 1:
    {
    LCD_DB7_HIGH;
    break;
    }
    default:
    {
    LCD_DB7_LOW;
    break;
    }
}

temp = ((lcd_data & 0x40) >> 6);

switch(temp)
{
    case 1:
    {
    LCD_DB6_HIGH;
    break;
    }
    default:
    {
    LCD_DB6_LOW;
    break;
    }
}

temp = ((lcd_data & 0x20) >> 5);

switch(temp)
{
    case 1:
    {
    LCD_DB5_HIGH;
    break;
    }
    default:
    {
    LCD_DB5_LOW;
    break;
    }
}

temp = ((lcd_data & 0x10) >> 4);

switch(temp)
{
    case 1:
    {
    LCD_DB4_HIGH;
    break;
    }
    default:
    {
    LCD_DB4_LOW;
    break;
    }
}

toggle_EN_pin();

temp = ((lcd_data & 0x08) >> 3);

switch(temp)
{
    case 1:
    {
    LCD_DB7_HIGH;
    break;
    }
    default:
    {
    LCD_DB7_LOW;
    break;
    }
}

temp = ((lcd_data & 0x04) >> 2);

switch(temp)
{
    case 1:
    {
    LCD_DB6_HIGH;
    break;
    }
    default:
    {
    LCD_DB6_LOW;
    break;
    }
}

temp = ((lcd_data & 0x02) >> 1);

switch(temp)
{
    case 1:
    {
    LCD_DB5_HIGH;
    break;
    }
    default:
    {
    LCD_DB5_LOW;
    break;
    }
}

temp = ((lcd_data & 0x01));

switch(temp)
{
    case 1:
    {
    LCD_DB4_HIGH;
    break;
    }
    default:
    {
    LCD_DB4_LOW;
    break;
    }
}

toggle_EN_pin();
}

void LCD_putstr(char *lcd_string)
{
do
{
    LCD_send(*lcd_string++, DAT);
}while(*lcd_string != '\0');
}

void LCD_putchar(char char_data)
{
LCD_send(char_data, DAT);
}

void LCD_clear_home(void)
{
LCD_send(clear_display, CMD);
LCD_send(goto_home, CMD);
}

void LCD_goto(unsigned char x_pos, unsigned char y_pos)
{
if(y_pos == 0)
{
    LCD_send((0x80 | x_pos), CMD);
}
else
{
    LCD_send((0x80 | 0x40 | x_pos), CMD);
}
}

void toggle_EN_pin(void)
{
LCD_EN_HIGH;

delay(16323); // 1ms
LCD_EN_LOW;
    delay(16323); // 1ms
}

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My lcd.h file is given below
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#ifndef _LCD_H
#define _LCD_H

#define LCD_C_PORT      JL_PORTC
#define LCD_DB7          (BIT(5))

#define LCD_B_PORT      JL_PORTB
#define LCD_RS          (BIT(5))
#define LCD_EN          (BIT(4))
#define LCD_DB4          (BIT(3))
#define LCD_DB5          (BIT(1))
#define LCD_DB6          (BIT(2))

#define LCD_RS_EN()          do{LCD_B_PORT->PU &= ~LCD_RS;LCD_B_PORT->PD &= ~LCD_RS;LCD_B_PORT->DIR &= ~LCD_RS;}while(0)
#define LCD_EN_EN()          do{LCD_B_PORT->PU &= ~LCD_EN;LCD_B_PORT->PD &= ~LCD_EN;LCD_B_PORT->DIR &= ~LCD_EN;}while(0)

#define LCD_DB4_EN()          do{LCD_B_PORT->PU &= ~LCD_DB4;LCD_B_PORT->PD &= ~LCD_DB4;LCD_B_PORT->DIR &= ~LCD_DB4;}while(0)
#define LCD_DB5_EN()          do{LCD_B_PORT->PU &= ~LCD_DB5;LCD_B_PORT->PD &= ~LCD_DB5;LCD_B_PORT->DIR &= ~LCD_DB5;}while(0)
#define LCD_DB6_EN()          do{LCD_B_PORT->PU &= ~LCD_DB6;LCD_B_PORT->PD &= ~LCD_DB6;LCD_B_PORT->DIR &= ~LCD_DB6;}while(0)
#define LCD_DB7_EN()          do{LCD_C_PORT->PU &= ~LCD_DB7;LCD_C_PORT->PD &= ~LCD_DB7;LCD_C_PORT->DIR &= ~LCD_DB7;}while(0)

//#define LCD_GPIO_init()           do{P00_PushPull_Mode; P01_PushPull_Mode; P10_PushPull_Mode; P11_PushPull_Mode; P12_PushPull_Mode; P13_PushPull_Mode;}while(0)

#define LCD_RS_HIGH                        do{LCD_B_PORT->OUT |=  LCD_RS;}while(0)
#define LCD_RS_LOW                         do{LCD_B_PORT->OUT &= ~LCD_RS;}while(0)

#define LCD_EN_HIGH                        do{LCD_B_PORT->OUT |=  LCD_EN;}while(0)
#define LCD_EN_LOW                         do{LCD_B_PORT->OUT &= ~LCD_EN;}while(0)

#define LCD_DB4_HIGH                        do{LCD_B_PORT->OUT |=  LCD_DB4;}while(0)
#define LCD_DB4_LOW                        do{LCD_B_PORT->OUT &= ~LCD_DB4;}while(0)

#define LCD_DB5_HIGH                        do{LCD_B_PORT->OUT |=  LCD_DB5;}while(0)
#define LCD_DB5_LOW                        do{LCD_B_PORT->OUT &= ~LCD_DB5;}while(0)

#define LCD_DB6_HIGH                        do{LCD_B_PORT->OUT |=  LCD_DB6;}while(0)
#define LCD_DB6_LOW                        do{LCD_B_PORT->OUT &= ~LCD_DB6;}while(0)

#define LCD_DB7_HIGH                        do{LCD_C_PORT->OUT |=  LCD_DB7;}while(0)
#define LCD_DB7_LOW                        do{LCD_C_PORT->OUT &= ~LCD_DB7;}while(0)

#define clear_display                      0x01
#define goto_home                          0x02

#define cursor_direction_inc               (0x04 | 0x02)
#define cursor_direction_dec               (0x04 | 0x00)
#define display_shift                      (0x04 | 0x01)
#define display_no_shift                   (0x04 | 0x00)

#define display_on                         (0x08 | 0x04)
#define display_off                        (0x08 | 0x02)
#define cursor_on                          (0x08 | 0x02)
#define cursor_off                         (0x08 | 0x00)
#define blink_on                           (0x08 | 0x01)
#define blink_off                          (0x08 | 0x00)

#define _8_pin_interface                   (0x20 | 0x10)
#define _4_pin_interface                   (0x20 | 0x00)
#define _2_row_display                     (0x20 | 0x08)
#define _1_row_display                     (0x20 | 0x00)
#define _5x10_dots                         (0x20 | 0x40)
#define _5x7_dots                          (0x20 | 0x00)

#define DAT                                1
#define CMD                                0

void LCD_init(void);
void LCD_send(unsigned char value, unsigned char mode);
void LCD_4bit_send(unsigned char lcd_data);
void LCD_putstr(char *lcd_string);
void LCD_putchar(char char_data);
void LCD_clear_home(void);
void LCD_goto(unsigned char x_pos, unsigned char y_pos);
void toggle_EN_pin(void);

#endif