471 lines
14 KiB
C
Executable File
471 lines
14 KiB
C
Executable File
/* --COPYRIGHT--,BSD
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* Copyright (c) 2016, Texas Instruments Incorporated
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --/COPYRIGHT--*/
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//*****************************************************************************
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//
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// lcd_e.c - Driver for the lcd_e Module.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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//! \addtogroup lcd_e_api lcd_e
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//! @{
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//
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//*****************************************************************************
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#include "inc/hw_memmap.h"
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#ifdef __MSP430_HAS_LCD_E__
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#include "lcd_e.h"
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#include <assert.h>
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//*****************************************************************************
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//
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//! Initialization parameter instance
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//!
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//! \param clockSource selects the clock that will be used by the LCD_E.
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//! Valid values are:
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//! - \b LCD_E_CLOCKSOURCE_XTCLK [Default] - The external
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//! oscillator clock.
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//! - \b LCD_E_CLOCKSOURCE_ACLK - The Auxilary Clock.
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//! - \b LCD_E_CLOCKSOURCE_VLOCLK - The internal low power and low
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//! frequency clock.
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//! \n Modified bits are \b LCDSSEL of \b LCDCTL0 register.
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//! \param clockDivider selects the divider for LCD_E frequency.
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//! Valid values are:
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//! - \b LCD_E_CLOCKDIVIDER_1 [Default]
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//! - \b LCD_E_CLOCKDIVIDER_2
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//! - \b LCD_E_CLOCKDIVIDER_3
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//! - \b LCD_E_CLOCKDIVIDER_4
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//! - \b LCD_E_CLOCKDIVIDER_5
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//! - \b LCD_E_CLOCKDIVIDER_6
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//! - \b LCD_E_CLOCKDIVIDER_7
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//! - \b LCD_E_CLOCKDIVIDER_8
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//! - \b LCD_E_CLOCKDIVIDER_9
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//! - \b LCD_E_CLOCKDIVIDER_10
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//! - \b LCD_E_CLOCKDIVIDER_11
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//! - \b LCD_E_CLOCKDIVIDER_12
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//! - \b LCD_E_CLOCKDIVIDER_13
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//! - \b LCD_E_CLOCKDIVIDER_14
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//! - \b LCD_E_CLOCKDIVIDER_15
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//! - \b LCD_E_CLOCKDIVIDER_16
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//! - \b LCD_E_CLOCKDIVIDER_17
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//! - \b LCD_E_CLOCKDIVIDER_18
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//! - \b LCD_E_CLOCKDIVIDER_19
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//! - \b LCD_E_CLOCKDIVIDER_20
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//! - \b LCD_E_CLOCKDIVIDER_21
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//! - \b LCD_E_CLOCKDIVIDER_22
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//! - \b LCD_E_CLOCKDIVIDER_23
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//! - \b LCD_E_CLOCKDIVIDER_24
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//! - \b LCD_E_CLOCKDIVIDER_25
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//! - \b LCD_E_CLOCKDIVIDER_26
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//! - \b LCD_E_CLOCKDIVIDER_27
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//! - \b LCD_E_CLOCKDIVIDER_28
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//! - \b LCD_E_CLOCKDIVIDER_29
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//! - \b LCD_E_CLOCKDIVIDER_30
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//! - \b LCD_E_CLOCKDIVIDER_31
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//! - \b LCD_E_CLOCKDIVIDER_32
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//! \n Modified bits are \b LCDDIVx of \b LCDCTL0 register.
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//! \param muxRate selects LCD_E mux rate.
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//! Valid values are:
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//! - \b LCD_E_STATIC [Default]
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//! - \b LCD_E_2_MUX
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//! - \b LCD_E_3_MUX
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//! - \b LCD_E_4_MUX
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//! - \b LCD_E_5_MUX
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//! - \b LCD_E_6_MUX
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//! - \b LCD_E_7_MUX
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//! - \b LCD_E_8_MUX
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//! \n Modified bits are \b LCDMXx of \b LCDCTL0 register.
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//! \param waveforms selects LCD_E waveform mode.
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//! Valid values are:
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//! - \b LCD_E_STANDARD_WAVEFORMS [Default]
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//! - \b LCD_E_LOW_POWER_WAVEFORMS
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//! \n Modified bits are \b LCDLP of \b LCDCTL0 register.
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//! \param segments sets LCD_E segment on/off.
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//! Valid values are:
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//! - \b LCD_E_SEGMENTS_DISABLED [Default]
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//! - \b LCD_E_SEGMENTS_ENABLED
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//! \n Modified bits are \b LCDSON of \b LCDCTL0 register.
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//
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//*****************************************************************************
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const LCD_E_initParam LCD_E_INIT_PARAM = {
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LCD_E_CLOCKSOURCE_XTCLK,
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LCD_E_CLOCKDIVIDER_1,
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LCD_E_STATIC,
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LCD_E_STANDARD_WAVEFORMS,
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LCD_E_SEGMENTS_DISABLED
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};
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static void setLCDFunction(uint16_t baseAddress,
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uint8_t index,
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uint16_t value)
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{
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switch(index)
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{
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case 0:
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HWREG16(baseAddress + OFS_LCDPCTL0) |= value;
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break;
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case 1:
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HWREG16(baseAddress + OFS_LCDPCTL1) |= value;
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break;
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case 2:
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HWREG16(baseAddress + OFS_LCDPCTL2) |= value;
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break;
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default: break;
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}
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}
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void LCD_E_init(uint16_t baseAddress,
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LCD_E_initParam *initParams)
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{
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~(LCDMX0 | LCDMX1 | LCDMX2 | LCDSSEL_3
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| LCDLP | LCDSON | LCDDIV_31);
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HWREG16(baseAddress + OFS_LCDCTL0) |= initParams->muxRate;
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HWREG16(baseAddress + OFS_LCDCTL0) |= initParams->clockSource;
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HWREG16(baseAddress + OFS_LCDCTL0) |= initParams->waveforms;
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HWREG16(baseAddress + OFS_LCDCTL0) |= initParams->segments;
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HWREG16(baseAddress + OFS_LCDCTL0) |= initParams->clockDivider;
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}
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void LCD_E_on(uint16_t baseAddress)
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{
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HWREG16(SYS_BASE + OFS_SYSCFG2) |= LCDPCTL;
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HWREG16(baseAddress + OFS_LCDCTL0) |= LCDON;
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}
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void LCD_E_off(uint16_t baseAddress)
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{
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HWREG16(SYS_BASE + OFS_SYSCFG2) &= ~LCDPCTL;
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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}
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void LCD_E_clearInterrupt(uint16_t baseAddress,
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uint16_t mask)
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{
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HWREG8(baseAddress + OFS_LCDCTL1_L) &= ~(mask >> 8);
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}
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uint16_t LCD_E_getInterruptStatus(uint16_t baseAddress,
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uint16_t mask)
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{
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return (HWREG8(baseAddress + OFS_LCDCTL1_L) & (mask >> 8));
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}
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void LCD_E_enableInterrupt(uint16_t baseAddress,
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uint16_t mask)
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{
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HWREG16(baseAddress + OFS_LCDCTL1) |= mask;
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}
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void LCD_E_disableInterrupt(uint16_t baseAddress,
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uint16_t mask)
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{
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HWREG16(baseAddress + OFS_LCDCTL1) &= ~mask;
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}
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void LCD_E_clearAllMemory(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_LCDMEMCTL) |= LCDCLRM;
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}
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void LCD_E_clearAllBlinkingMemory(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_LCDMEMCTL) |= LCDCLRBM;
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}
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void LCD_E_selectDisplayMemory(uint16_t baseAddress,
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uint16_t displayMemory)
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{
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HWREG16(baseAddress + OFS_LCDMEMCTL) &= ~LCDDISP;
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HWREG16(baseAddress + OFS_LCDMEMCTL) |= displayMemory;
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}
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void LCD_E_setBlinkingControl(uint16_t baseAddress,
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uint16_t clockPrescalar,
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uint16_t mode)
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{
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HWREG16(baseAddress + OFS_LCDBLKCTL) &=
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~(LCDBLKPRE2 | LCDBLKPRE1 | LCDBLKPRE0 | LCDBLKMOD_3);
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HWREG16(baseAddress + OFS_LCDBLKCTL) |= (clockPrescalar | mode);
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}
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void LCD_E_enableChargePump(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_LCDVCTL) |= LCDCPEN;
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}
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void LCD_E_disableChargePump(uint16_t baseAddress)
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{
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HWREG16(baseAddress + OFS_LCDVCTL) &= ~LCDCPEN;
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}
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void LCD_E_setChargePumpFreq(uint16_t baseAddress,
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uint16_t freq)
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{
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HWREG16(baseAddress + OFS_LCDVCTL) &=
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~(LCDCPFSEL3 | LCDCPFSEL2 | LCDCPFSEL1 | LCDCPFSEL0);
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HWREG16(baseAddress + OFS_LCDVCTL) |= freq;
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}
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void LCD_E_setVLCDSource(uint16_t baseAddress,
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uint16_t r13Source,
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uint16_t r33Source)
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{
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HWREG16(baseAddress + OFS_LCDVCTL) &= ~(LCDREFMODE | LCDSELVDD);
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HWREG16(baseAddress + OFS_LCDVCTL) |= (r13Source | r33Source);
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}
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void LCD_E_setVLCDVoltage(uint16_t baseAddress,
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uint16_t voltage)
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{
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HWREG16(baseAddress + OFS_LCDVCTL) &= ~(VLCD3 | VLCD2 | VLCD1 | VLCD0);
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HWREG16(baseAddress + OFS_LCDVCTL) |= voltage;
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}
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void LCD_E_setReferenceMode(uint16_t baseAddress,
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uint16_t mode)
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{
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HWREG16(baseAddress + OFS_LCDVCTL) &= ~(LCDREFMODE);
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HWREG16(baseAddress + OFS_LCDVCTL) |= mode;
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}
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void LCD_E_setPinAsLCDFunction(uint16_t baseAddress,
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uint8_t pin)
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{
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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uint8_t idx = pin >> 4;
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uint16_t val = 1 << (pin & 0xF);
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setLCDFunction(baseAddress, idx, val);
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}
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void LCD_E_setPinAsPortFunction(uint16_t baseAddress,
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uint8_t pin)
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{
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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uint8_t idx = pin >> 4;
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uint16_t val = 1 << (pin & 0xF);
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switch(idx)
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{
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case 0:
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HWREG16(baseAddress + OFS_LCDPCTL0) &= ~val;
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break;
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case 1:
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HWREG16(baseAddress + OFS_LCDPCTL1) &= ~val;
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break;
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case 2:
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HWREG16(baseAddress + OFS_LCDPCTL2) &= ~val;
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break;
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default: break;
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}
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}
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void LCD_E_setPinAsLCDFunctionEx(uint16_t baseAddress,
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uint8_t startPin,
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uint8_t endPin)
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{
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uint8_t startIdx = startPin >> 4;
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uint8_t endIdx = endPin >> 4;
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uint8_t startPos = startPin & 0xF;
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uint8_t endPos = endPin & 0xF;
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uint16_t val = 0;
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uint8_t i = 0;
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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if(startIdx == endIdx)
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{
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val = (0xFFFF >> (15 - endPos)) & (0xFFFF << startPos);
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setLCDFunction(baseAddress, startIdx, val);
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}
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else
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{
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val = 0xFFFF >> (15 - endPos);
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setLCDFunction(baseAddress, endIdx, val);
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for(i = endIdx - 1; i > startIdx; i--)
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{
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setLCDFunction(baseAddress, i, 0xFFFF);
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}
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val = 0xFFFF << startPos;
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setLCDFunction(baseAddress, startIdx, val);
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}
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}
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void LCD_E_setPinAsCOM(uint16_t baseAddress,
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uint8_t pin,
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uint8_t com)
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{
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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uint8_t idx = pin >> 4;
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uint16_t val = 1 << (pin & 0xF);
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uint8_t muxRate =
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HWREG16(baseAddress + OFS_LCDCTL0) & (LCDMX2 | LCDMX1 | LCDMX0);
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switch(idx)
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{
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case 0:
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HWREG16(baseAddress + OFS_LCDCSSEL0) |= val;
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break;
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case 1:
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HWREG16(baseAddress + OFS_LCDCSSEL1) |= val;
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break;
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case 2:
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HWREG16(baseAddress + OFS_LCDCSSEL2) |= val;
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break;
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default: break;
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}
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// Set LCDMem to COM as well for corresponding pins
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if(muxRate <= (LCDMX1 | LCDMX0))
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{
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if(pin & 1)
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{
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HWREG8(baseAddress + OFS_LCDM0W + pin / 2) |= (com & 0xF) << 4;
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HWREG8(baseAddress + OFS_LCDBM0W + pin / 2) |= (com & 0xF) << 4;
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}
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else
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{
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HWREG8(baseAddress + OFS_LCDM0W + pin / 2) |= (com & 0xF);
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HWREG8(baseAddress + OFS_LCDBM0W + pin / 2) |= (com & 0xF);
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}
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}
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else
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{
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//5-mux, 6-mux, 7-mux, 8-mux
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HWREG8(baseAddress + OFS_LCDM0W + pin) |= com;
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HWREG8(baseAddress + OFS_LCDBM0W + pin) |= com;
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}
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}
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void LCD_E_setPinAsSEG(uint16_t baseAddress,
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uint8_t pin)
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{
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// Set LCDMem to COM as well for corresponding pins
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HWREG16(baseAddress + OFS_LCDCTL0) &= ~LCDON;
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uint8_t idx = pin >> 4;
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uint16_t val = 1 << (pin & 0xF);
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switch(idx)
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{
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case 0:
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HWREG16(baseAddress + OFS_LCDCSSEL0) &= ~val;
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break;
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case 1:
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HWREG16(baseAddress + OFS_LCDCSSEL1) &= ~val;
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break;
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case 2:
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HWREG16(baseAddress + OFS_LCDCSSEL2) &= ~val;
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break;
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default: break;
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}
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}
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void LCD_E_setMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDM0W + memory) = mask;
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}
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void LCD_E_updateMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDM0W + memory) |= mask;
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}
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void LCD_E_toggleMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDM0W + memory) ^= mask;
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}
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void LCD_E_clearMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDM0W + memory) &= ~mask;
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}
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void LCD_E_setBlinkingMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDBM0W + memory) = mask;
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}
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void LCD_E_updateBlinkingMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDBM0W + memory) |= mask;
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}
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void LCD_E_toggleBlinkingMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDBM0W + memory) ^= mask;
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}
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void LCD_E_clearBlinkingMemory(uint16_t baseAddress,
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uint8_t memory,
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uint8_t mask)
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{
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HWREG8(baseAddress + OFS_LCDBM0W + memory) &= ~mask;
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}
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#endif
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//*****************************************************************************
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//
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//! Close the doxygen group for lcd_e_api
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//! @}
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//
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//*****************************************************************************
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