/**
* @brief Initializes the LCD according to the specified parameters.
* @param LCD_CLKPrescalerDiv : LCD clock prescaler
* This parameter can be one of the following values:
* @arg LCD_Prescaler_1: CLKprescaler = ClKinput
* @arg LCD_Prescaler_2: CLKprescaler = ClKinput/2
* @arg LCD_Prescaler_4: CLKprescaler = ClKinput/4
* @arg LCD_Prescaler_8: CLKprescaler = ClKinput/8
* @arg LCD_Prescaler_16: CLKprescaler = ClKinput/16
* @arg LCD_Prescaler_32: CLKprescaler = ClKinput/32
* @arg LCD_Prescaler_64: CLKprescaler = ClKinput/64
* @arg LCD_Prescaler_128: CLKprescaler = ClKinput/128
* @arg LCD_Prescaler_256: CLKprescaler = ClKinput/256
* @arg LCD_Prescaler_512: CLKprescaler = ClKinput/512
* @arg LCD_Prescaler_1024: CLKprescaler = ClKinput/1024
* @arg LCD_Prescaler_2048: CLKprescaler = ClKinput/2048
* @arg LCD_Prescaler_4096: CLKprescaler = ClKinput/4096
* @arg LCD_Prescaler_8192: CLKprescaler = ClKinput/8192
* @arg LCD_Prescaler_16384: CLKprescaler = ClKinput/16384
* @arg LCD_Prescaler_32768: CLKprescaler = ClKinput/32768
* @param LCD_Divider : LCD clock divider
* This parameter can be one of the following values:
* @arg LCD_Divider_16: LCD frequency = CLKprescaler/16
* @arg LCD_Divider_17: LCD frequency = CLKprescaler/17
* @arg LCD_Divider_18: LCD frequency = CLKprescaler/18
* @arg LCD_Divider_19: LCD frequency = CLKprescaler/19
* @arg LCD_Divider_20: LCD frequency = CLKprescaler/20
* @arg LCD_Divider_21: LCD frequency = CLKprescaler/21
* @arg LCD_Divider_22: LCD frequency = CLKprescaler/22
* @arg LCD_Divider_23: LCD frequency = CLKprescaler/23
* @arg LCD_Divider_24: LCD frequency = CLKprescaler/24
* @arg LCD_Divider_25: LCD frequency = CLKprescaler/25
* @arg LCD_Divider_26: LCD frequency = CLKprescaler/26
* @arg LCD_Divider_27: LCD frequency = CLKprescaler/27
* @arg LCD_Divider_28: LCD frequency = CLKprescaler/28
* @arg LCD_Divider_29: LCD frequency = CLKprescaler/29
* @arg LCD_Divider_30: LCD frequency = CLKprescaler/30
* @arg LCD_Divider_31: LCD frequency = CLKprescaler/31
* @param LCD_Duty : LCD duty
* This parameter can be one of the following values:
* @arg LCD_Duty_Static: Static duty
* @arg LCD_Duty_1_2: 1/2 duty
* @arg LCD_Duty_1_3: 1/3 duty
* @arg LCD_Duty_1_4: 1/4 duty
* @arg LCD_Duty_1_8: 1/8 duty
* @param LCD_Bias : LCD bias
* This parameter can be one of the following values:
* @arg LCD_Bias_1_4: 1/4 bias
* @arg LCD_Bias_1_3: 1/3 bias
* @arg LCD_Bias_1_2: 1/2 bias
* @param LCD_VoltageSource : LCD voltage source
* This parameter can be one of the following values:
* @arg LCD_VoltageSource_Internal: Internal voltage source
* @arg LCD_VoltageSource_External: External voltage source
* @retval None
*/
void LCD_Init(LCD_Prescaler_TypeDef LCD_Prescaler, LCD_Divider_TypeDef LCD_Divider,
LCD_Duty_TypeDef LCD_Duty, LCD_Bias_TypeDef LCD_Bias,
LCD_VoltageSource_TypeDef LCD_VoltageSource)
{
/* Check function parameters */
assert_param(IS_LCD_CLOCK_PRESCALER(LCD_Prescaler));
assert_param(IS_LCD_CLOCK_DIVIDER(LCD_Divider));
assert_param(IS_LCD_DUTY(LCD_Duty));
assert_param(IS_LCD_BIAS(LCD_Bias));
assert_param(IS_LCD_VOLTAGE_SOURCE(LCD_VoltageSource));
LCD->FRQ &= (uint8_t)(~LCD_FRQ_PS); /* Clear the prescaler bits */
LCD->FRQ |= LCD_Prescaler;
LCD->FRQ &= (uint8_t)(~LCD_FRQ_DIV); /* Clear the divider bits */
LCD->FRQ |= LCD_Divider;
/* Configure the Duty cycle */
LCD->CR1 &= (uint8_t)(~LCD_CR1_DUTY); /* Clear the duty bits */
LCD->CR4 &= (uint8_t)(~LCD_CR4_DUTY8); /* Clear the DUTY8 bit */
if (LCD_Duty == LCD_Duty_1_8)
{
LCD->CR4 |= (uint8_t)((uint8_t)((uint8_t)LCD_Duty & (uint8_t)0xF0) >> 4);
}
/**
* @brief Initializes the LCD according to the specified parameters.
* @param LCD_CLKPrescalerDiv : This parameter can be any of the @ref LCD_Divider_TypeDef enumeration.
* @param LCD_Divider : This parameter can be any of the @ref LCD_Divider_TypeDef enumeration.
* @param LCD_Duty : This parameter can be any of the @ref LCD_Duty_TypeDef enumeration.
* @param LCD_Bias : This parameter can be any of the @ref LCD_Bias_TypeDef enumeration.
* @param LCD_VoltageSource : This parameter can be any of the @ref LCD_VoltageSource_TypeDef enumeration.
* @retval None
*/
void LCD_Init(LCD_Prescaler_TypeDef LCD_Prescaler, LCD_Divider_TypeDef LCD_Divider,
LCD_Duty_TypeDef LCD_Duty, LCD_Bias_TypeDef LCD_Bias,
LCD_VoltageSource_TypeDef LCD_VoltageSource)
{
/* Check function parameters */
assert_param(IS_LCD_CLOCK_PRESCALER(LCD_Prescaler));
assert_param(IS_LCD_CLOCK_DIVIDER(LCD_Divider));
assert_param(IS_LCD_DUTY(LCD_Duty));
assert_param(IS_LCD_BIAS(LCD_Bias));
assert_param(IS_LCD_VOLTAGE_SOURCE(LCD_VoltageSource));
LCD->FRQ &= (uint8_t)(~LCD_FRQ_PS); /* Clear the prescaler bits */
LCD->FRQ |= (uint8_t)LCD_Prescaler;
LCD->FRQ &= (uint8_t)(~LCD_FRQ_DIV); /* Clear the divider bits */
LCD->FRQ |= (uint8_t)LCD_Divider;
LCD->CR1 &= (uint8_t)(~LCD_CR1_DUTY); /* Clear the duty bits */
LCD->CR1 |= (uint8_t)LCD_Duty;
LCD->CR1 &= (uint8_t)(~LCD_CR1_B2); /* Clear the bias bits */
LCD->CR1 |= (uint8_t)LCD_Bias;
LCD->CR2 &= (uint8_t)(~LCD_CR2_VSEL); /* Clear the voltage source bit */
LCD->CR2 |= (uint8_t)LCD_VoltageSource;
}
