what is the address on register A16

[MNapi]

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#define FMC_BANK1_BASE ((uint32_t)0x60000000)

#define FMC_A16_OFFSET ((uint32_t)0x00020000)


#define LCD_REG (*((volatile uint8_t *) FMC_BANK1_BASE))
#define LCD_RAM (*((volatile uint8_t *) (FMC_BANK1_BASE | FMC_A16_OFFSET)))

0x00020000 does not work

0x00010000 does not work

when write data (LCD_RAM ) is has to be high maybe it is the other way around

I am using STM32F427VGT6

the display is 8 BIT FMC, maybe it has something to do with declaration ((uint32_t)0x60000000) instead of 

((uint8_t)0x60000000)

the pin will not switch properly to choose data or command register

when I assign PD11 (which is the A16) as regular GPIO then the display works

void LCD_WR_REG(uint8_t reg)
{
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_11, GPIO_PIN_RESET);
LCD_REG = reg;
}

// Write 8-bit data
void LCD_WR_DATA8(uint8_t data)
{
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_11, GPIO_PIN_SET);
LCD_RAM = data;
}