Learning STM32 + LCD Interfacing code not working

#include "lcd.h"
#include "main.h"



extern void Delay_Us (uint16_t us);
void LCD_Strobe(void)
{

  HAL_GPIO_WritePin(GPIOB,GPIO_PIN_11, GPIO_PIN_SET);// LCD Enable PIN to High
  HAL_Delay(1);
  //Delay_Us(100);
  HAL_GPIO_WritePin(GPIOB,GPIO_PIN_11, GPIO_PIN_RESET);// LCD Enable High to Low
  //Delay_Us(100);
  HAL_Delay(1);
 }


void LCD_init(void)
{

  HAL_Delay(40);
  LCD_cmd(0x28);
  HAL_Delay(1);
  LCD_cmd(0x28);
  HAL_Delay(1);
  //Delay_Us(100);
  LCD_cmd(0x28);
  LCD_cmd(0x28);            // Function set (4-bit interface, 2 lines, 5*7Pixels)
  LCD_cmd(0x28);            // Function set (4-bit interface, 2 lines, 5*7Pixels)
//  LCD_cmd(0x0c);            // Make cursorinvisible
//    LCD_Clear();            // Clear screen
 //  LCD_cmd(0x6);            // Set entry Mode(auto increment of cursor)
}

void LCD_cmd(__uint16_t cmd)
{       HAL_GPIO_WritePin(GPIOB,GPIO_PIN_11, GPIO_PIN_RESET);
        cmd = (cmd << 8) ;
        GPIOB->ODR =  (cmd & 0xf000);
        LCD_Strobe();
        cmd = (cmd << 4) ;
     // printf("GPIOB->ODR Value %d \n\r",cmd);
        GPIOB->ODR =  (cmd & 0xf000);
        LCD_Strobe();
}


void LCD_data(__uint16_t LCD_Data)
{
     HAL_GPIO_WritePin(GPIOB,GPIO_PIN_11, GPIO_PIN_SET);
     LCD_Data = (LCD_Data << 8) ;
     GPIOB->ODR = (GPIOB->ODR & 0x0fff) | (LCD_Data & 0xf000);
    // LCD_Data =GPIOB->ODR;
    // printf("GPIOB->ODR Value %d \n\r",LCD_Data);
     LCD_Strobe();
     LCD_Data = (LCD_Data << 4) ;
     GPIOB->ODR = (GPIOB->ODR & 0x0fff) | (LCD_Data & 0xf000);
     LCD_Strobe();

}


void LCD_Clear(void)
{
    LCD_cmd(0x01);
    HAL_Delay(5);
}

void LCD_String(const char *ptr)  // ptr pointing the address of displaying string
{
    while (*ptr)             // check weather the endo of file then exit the loop
    {
        LCD_data(*ptr++);    // Sending data to LCD_data functions
    }
}