lcd_b_ex1_4mux.c

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/* --COPYRIGHT--,BSD
 * Copyright (c) 2017, Texas Instruments Incorporated
 * All rights reserved.
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 *    notice, this list of conditions and the following disclaimer.
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 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
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 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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//*****************************************************************************
//*****************************************************************************
#include "driverlib.h"
 
int main(void) {
 
    WDT_A_hold(WDT_A_BASE);
 
    //Set P5SEL P5.3/P5.4/P5.5 for LCD_B COM1/COM2/COM3
    GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P5,
            GPIO_PIN3|GPIO_PIN4|GPIO_PIN5);
 
    //Unlock Battery Backup subsystem for XT1 operation
    while(BattBak_unlockBackupSubSystem(BAK_BATT_BASE) == BATTBAK_UNLOCKFAILURE);
 
    //Initializes the XT1 crystal oscillator with no timeout
    //In case of failure, code hangs here.
    //For time-out instead of code hang use UCS_turnOnLFXT1WithTimeout()
    UCS_turnOnLFXT1(
        UCS_XT1_DRIVE_0,
        UCS_XCAP_3
        );
 
    //Set LCD functions pins from S0 to S11
    LCD_B_setPinAsLCDFunctionEx(LCD_B_BASE, LCD_B_SEGMENT_LINE_0, LCD_B_SEGMENT_LINE_11);
 
    //Initialize LCD
    LCD_B_initParam initParams = {0};
    initParams.clockSource = LCD_B_CLOCKSOURCE_ACLK;
    initParams.clockDivider = LCD_B_CLOCKDIVIDER_1;
    initParams.clockPrescalar = LCD_B_CLOCKPRESCALAR_16;
    initParams.muxRate = LCD_B_4_MUX;
    initParams.segments = LCD_B_SEGMENTS_ENABLED;
    LCD_B_init(LCD_B_BASE, &initParams);
 
    //LCD Operation - VLCD generated internally, V2-V4 generated internally, v5 to ground
    LCD_B_setVLCDSource(LCD_B_BASE, LCD_B_VLCD_GENERATED_INTERNALLY,
        LCD_B_V2V3V4_GENERATED_INTERNALLY_NOT_SWITCHED_TO_PINS,
        LCD_B_V5_VSS);
 
    //Set VLCD voltage to 2.60v
    LCD_B_setVLCDVoltage(LCD_B_BASE, LCD_B_CHARGEPUMP_VOLTAGE_2_60V_OR_2_17VREF);
    LCD_B_selectChargePumpReference(LCD_B_BASE, LCD_B_INTERNAL_REFERENCE_VOLTAGE);
 
    //Enable charge pump and select internal reference for it
    LCD_B_enableChargePump(LCD_B_BASE);
 
    //Disable LCD charge pump during ADC conversion
    LCD_B_configureChargePump(LCD_B_BASE, LCD_B_CHARGEPUMP_AUTO_DISABLED_DURING_ADC_CONVERSION);
 
    //Clear LCD memory
    LCD_B_clearAllMemory(LCD_B_BASE);
 
    //Display "430"
    LCD_B_setMemory(LCD_B_BASE, LCD_B_MEMORY_BLINKINGMEMORY_0, 0x67);
    LCD_B_setMemory(LCD_B_BASE, LCD_B_MEMORY_BLINKINGMEMORY_2, 0xF3);
    LCD_B_setMemory(LCD_B_BASE, LCD_B_MEMORY_BLINKINGMEMORY_4, 0xFC);
 
    //Turn LCD on
    LCD_B_on(LCD_B_BASE);
 
   __bis_SR_register(LPM3_bits | GIE);
 
    return 0;
}