/**
* @brief Writes a word in the specific LCD RAM.
* @param LCD_RAMRegister: specifies the LCD Contrast.
* This parameter can be one of the following values:
* @arg LCD_RAMRegister_0: LCD RAM Register 0
* @arg LCD_RAMRegister_1: LCD RAM Register 1
* @arg LCD_RAMRegister_2: LCD RAM Register 2
* @arg LCD_RAMRegister_3: LCD RAM Register 3
* @arg LCD_RAMRegister_4: LCD RAM Register 4
* @arg LCD_RAMRegister_5: LCD RAM Register 5
* @arg LCD_RAMRegister_6: LCD RAM Register 6
* @arg LCD_RAMRegister_7: LCD RAM Register 7
* @arg LCD_RAMRegister_8: LCD RAM Register 8
* @arg LCD_RAMRegister_9: LCD RAM Register 9
* @arg LCD_RAMRegister_10: LCD RAM Register 10
* @arg LCD_RAMRegister_11: LCD RAM Register 11
* @arg LCD_RAMRegister_12: LCD RAM Register 12
* @arg LCD_RAMRegister_13: LCD RAM Register 13
* @arg LCD_RAMRegister_14: LCD RAM Register 14
* @arg LCD_RAMRegister_15: LCD RAM Register 15
* @param LCD_Data: specifies LCD Data Value to be written.
* @retval None
*/
void LCD_Write(uint32_t LCD_RAMRegister, uint32_t LCD_Data)
{
/* Check the parameters */
assert_param(IS_LCD_RAM_REGISTER(LCD_RAMRegister));
/* Copy data bytes to RAM register */
LCD->RAM[LCD_RAMRegister] = (uint32_t)LCD_Data;
}
/**
* @brief Writes a byte in the specific LCD RAM .
* @param LCD_RAMRegister: The LCD register index in the RAM matrix.
* This parameter can be any of the @ref LCD_RAMRegister_TypeDef enumeration.
* @param LCD_Data : Value to be written
* @retval None
*/
void LCD_WriteRAM(LCD_RAMRegister_TypeDef LCD_RAMRegister, uint8_t LCD_Data)
{
/* Check function parameters */
assert_param(IS_LCD_RAM_REGISTER(LCD_RAMRegister));
/* Copy data bytes to RAM register */
LCD->RAM[LCD_RAMRegister] = (uint8_t)LCD_Data;
}
/**
* @brief Writes a word in the specific LCD RAM.
* @param hlcd: LCD handle
* @param RAMRegisterIndex: specifies the LCD RAM Register.
* This parameter can be one of the following values:
* @arg LCD_RAM_REGISTER0: LCD RAM Register 0
* @arg LCD_RAM_REGISTER1: LCD RAM Register 1
* @arg LCD_RAM_REGISTER2: LCD RAM Register 2
* @arg LCD_RAM_REGISTER3: LCD RAM Register 3
* @arg LCD_RAM_REGISTER4: LCD RAM Register 4
* @arg LCD_RAM_REGISTER5: LCD RAM Register 5
* @arg LCD_RAM_REGISTER6: LCD RAM Register 6
* @arg LCD_RAM_REGISTER7: LCD RAM Register 7
* @arg LCD_RAM_REGISTER8: LCD RAM Register 8
* @arg LCD_RAM_REGISTER9: LCD RAM Register 9
* @arg LCD_RAM_REGISTER10: LCD RAM Register 10
* @arg LCD_RAM_REGISTER11: LCD RAM Register 11
* @arg LCD_RAM_REGISTER12: LCD RAM Register 12
* @arg LCD_RAM_REGISTER13: LCD RAM Register 13
* @arg LCD_RAM_REGISTER14: LCD RAM Register 14
* @arg LCD_RAM_REGISTER15: LCD RAM Register 15
* @param RAMRegisterMask: specifies the LCD RAM Register Data Mask.
* @param Data: specifies LCD Data Value to be written.
* @retval None
*/
HAL_StatusTypeDef HAL_LCD_Write(LCD_HandleTypeDef *hlcd, uint32_t RAMRegisterIndex, uint32_t RAMRegisterMask, uint32_t Data)
{
uint32_t tickstart = 0x00;
if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
{
/* Check the parameters */
assert_param(IS_LCD_RAM_REGISTER(RAMRegisterIndex));
if(hlcd->State == HAL_LCD_STATE_READY)
{
/* Process Locked */
__HAL_LOCK(hlcd);
hlcd->State = HAL_LCD_STATE_BUSY;
/* Get timeout */
tickstart = HAL_GetTick();
/*!< Wait Until the LCD is ready */
while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
{
if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
{
hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
/* Process Unlocked */
__HAL_UNLOCK(hlcd);
return HAL_TIMEOUT;
}
}
}
/* Copy the new Data bytes to LCD RAM register */
MODIFY_REG(hlcd->Instance->RAM[RAMRegisterIndex], ~(RAMRegisterMask), Data);
return HAL_OK;
}
else
{
return HAL_ERROR;
}
}
