lcd_e_ex1_4_mux.c

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/* --COPYRIGHT--,BSD
 * Copyright (c) 2017, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    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,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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//*****************************************************************************
//*****************************************************************************
#include "driverlib.h"
 
void main(void)
{
    // Hold watchdog
    WDT_A_hold(WDT_A_BASE);
 
    //Port select XT1
    GPIO_setAsPeripheralModuleFunctionInputPin(
        GPIO_PORT_P4,
        GPIO_PIN1 + GPIO_PIN2,
        GPIO_PRIMARY_MODULE_FUNCTION
        );
 
    //Set external frequency for XT1
    CS_setExternalClockSource(32768);
 
    //Select XT1 as the clock source for ACLK with no frequency divider
    CS_initClockSignal(CS_ACLK, CS_XT1CLK_SELECT, CS_CLOCK_DIVIDER_1);
 
    //Start XT1 with no time out
    CS_turnOnXT1(CS_XT1_DRIVE_0);
 
    //clear all OSC fault flag
    CS_clearAllOscFlagsWithTimeout(1000);
 
    /*
     * Disable the GPIO power-on default high-impedance mode to activate
     * previously configured port settings
     */
    PMM_unlockLPM5();
 
    // L0~L26 & L36~L39 pins selected
    LCD_E_setPinAsLCDFunctionEx(LCD_E_BASE, LCD_E_SEGMENT_LINE_0, LCD_E_SEGMENT_LINE_26);
    LCD_E_setPinAsLCDFunctionEx(LCD_E_BASE, LCD_E_SEGMENT_LINE_36, LCD_E_SEGMENT_LINE_39);
 
    LCD_E_initParam initParams = LCD_E_INIT_PARAM;
    initParams.clockDivider = LCD_E_CLOCKDIVIDER_8;
    initParams.muxRate = LCD_E_4_MUX;
    initParams.segments = LCD_E_SEGMENTS_ENABLED;
 
    // Init LCD as 4-mux mode
    LCD_E_init(LCD_E_BASE, &initParams);
 
    // LCD Operation - Mode 3, internal 3.08v, charge pump 256Hz
    LCD_E_setVLCDSource(LCD_E_BASE, LCD_E_INTERNAL_REFERENCE_VOLTAGE, LCD_E_EXTERNAL_SUPPLY_VOLTAGE);
    LCD_E_setVLCDVoltage(LCD_E_BASE, LCD_E_REFERENCE_VOLTAGE_3_08V);
 
    LCD_E_enableChargePump(LCD_E_BASE);
    LCD_E_setChargePumpFreq(LCD_E_BASE, LCD_E_CHARGEPUMP_FREQ_16);
 
    // Clear LCD memory
    LCD_E_clearAllMemory(LCD_E_BASE);
 
    // Configure COMs and SEGs
    // L0, L1, L2, L3: COM pins
    // L0 = COM0, L1 = COM1, L2 = COM2, L3 = COM3
    LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_0, LCD_E_MEMORY_COM0);
    LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_1, LCD_E_MEMORY_COM1);
    LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_2, LCD_E_MEMORY_COM2);
    LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_3, LCD_E_MEMORY_COM3);
 
    // Display "123456"
    // LCD Pin8-Pin9 for '1'
    LCD_E_setMemory(LCD_E_BASE, LCD_E_MEMORY_BLINKINGMEMORY_4, 0x60);
 
    // LCD Pin12-Pin13 for '2'
    LCD_E_setMemory(LCD_E_BASE, LCD_E_MEMORY_BLINKINGMEMORY_6, 0xDB);
 
    // LCD Pin16-Pin17 for '3'
    LCD_E_setMemory(LCD_E_BASE, LCD_E_MEMORY_BLINKINGMEMORY_8, 0xF3);
 
    // LCD Pin20-Pin21 for '4'
    LCD_E_setMemory(LCD_E_BASE, LCD_E_MEMORY_BLINKINGMEMORY_10, 0x67);
 
    // LCD Pin4-Pin5 for '5'
    LCD_E_setMemory(LCD_E_BASE, LCD_E_MEMORY_BLINKINGMEMORY_2, 0xB7);
 
    // LCD Pin36-Pin37 for '6'
    LCD_E_setMemory(LCD_E_BASE, LCD_E_MEMORY_BLINKINGMEMORY_18, 0xBF);
 
    // Turn on LCD
    LCD_E_on(LCD_E_BASE);
 
    // Enter LPM3.5
    PMM_turnOffRegulator();
    __bis_SR_register(LPM4_bits | GIE);
}