Hi everybody !
I wanna interface LCD 12864 with my launch pad, i am trying to interfacing, but something wrong with my code , could you please me to compile making operational with LCD. i am new with Tiva C Series Micros.
Here is my code:
//*****************************************************************************
//
// blinky.c - Simple example to blink the on-board LED.
//
// Copyright (c) 2013-2015 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2.1.1.71 of the EK-TM4C1294XL Firmware Package.
//
//*****************************************************************************
#include <stdint.h>
#include "inc/tm4c1294ncpdt.h"
#include <stdbool.h>
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include"inc/hw_types.h"
#include"inc/hw_memmap.h"
#include"driverlib/timer.h"
#include"driverlib/interrupt.h"
#include"driverlib/systick.h"
//*****************************************************************************
volatile uint32_t period,SysClk;
void delay(void);
int
main(void)
{
//port intialization
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOH);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOM);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOK);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);
//DATA-SIGNALS
GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE,GPIO_PIN_4|GPIO_PIN_5);//DB0,DB1
GPIOPinTypeGPIOOutput(GPIO_PORTH_BASE,GPIO_PIN_1);//DB2
GPIOPinTypeGPIOOutput(GPIO_PORTM_BASE,GPIO_PIN_4);//DB3
GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE,GPIO_PIN_4|GPIO_PIN_5);//DB4&DB5
GPIOPinTypeGPIOOutput(GPIO_PORTN_BASE,GPIO_PIN_4|GPIO_PIN_5);//DB6, DB7
//CONTROL-SIGNALS
GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE,GPIO_PIN_4|GPIO_PIN_5);//RS,R/W
GPIOPinTypeGPIOOutput(GPIO_PORTK_BASE,GPIO_PIN_2);//EN
delay();
GPIOPinWrite(GPIO_PORTB_BASE,GPIO_PIN_4,0);//RS
GPIOPinWrite(GPIO_PORTB_BASE,GPIO_PIN_5,0);//R/W
GPIOPinWrite(GPIO_PORTK_BASE,GPIO_PIN_2,0);//EN
GPIOPinWrite(GPIO_PORTH_BASE,GPIO_PIN_1,0);//DB2
GPIOPinWrite(GPIO_PORTM_BASE,GPIO_PIN_4,0);//DB3 //Function Set 0x30 to Data-bus
GPIOPinWrite(GPIO_PORTA_BASE,GPIO_PIN_4|GPIO_PIN_5,0);//DB0,DB1
GPIOPinWrite(GPIO_PORTE_BASE,GPIO_PIN_4|GPIO_PIN_5,1);//DB4&DB5
GPIOPinWrite(GPIO_PORTN_BASE,GPIO_PIN_4|GPIO_PIN_5,0);//DB6, DB7
delay();
GPIOPinWrite(GPIO_PORTK_BASE,GPIO_PIN_2,1);//EN //low to high pulse
delay();
GPIOPinWrite(GPIO_PORTB_BASE,GPIO_PIN_4,0);//RS
GPIOPinWrite(GPIO_PORTB_BASE,GPIO_PIN_5,1);//R/W
delay();
GPIOPinWrite(GPIO_PORTK_BASE,GPIO_PIN_2,0);//EN
GPIOPinWrite(GPIO_PORTH_BASE,GPIO_PIN_1,0);//DB2
GPIOPinWrite(GPIO_PORTM_BASE,GPIO_PIN_4,0);//DB3
GPIOPinWrite(GPIO_PORTA_BASE,GPIO_PIN_4,1);//DB0, //0x41 sent to data
GPIOPinWrite(GPIO_PORTA_BASE,GPIO_PIN_5,0);//DB1
GPIOPinWrite(GPIO_PORTE_BASE,GPIO_PIN_4|GPIO_PIN_5,0);//DB4&DB5
GPIOPinWrite(GPIO_PORTN_BASE,GPIO_PIN_4,1);//DB6,
GPIOPinWrite(GPIO_PORTN_BASE,GPIO_PIN_5,0);//DB7
delay();
GPIOPinWrite(GPIO_PORTB_BASE,GPIO_PIN_4,1);//RS
GPIOPinWrite(GPIO_PORTK_BASE,GPIO_PIN_2,1);//EN
delay();
GPIOPinWrite(GPIO_PORTB_BASE,GPIO_PIN_4,1);//RS
GPIOPinWrite(GPIO_PORTK_BASE,GPIO_PIN_2,0);//EN
}
void delay(void){
SysClk=SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |SYSCTL_OSC_MAIN|SYSCTL_USE_PLL|SYSCTL_CFG_VCO_480),
120000000);
SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
TimerIntClear(TIMER0_BASE,TIMER_TIMA_TIMEOUT);
TimerConfigure(TIMER0_BASE,TIMER_CFG_PERIODIC);
period=SysClk/2;
TimerLoadSet(TIMER0_BASE,TIMER_A,period-1);
//TimerIntEnable(TIMER0_BASE, TIMER_TIMA_TIMEOUT);
TimerEnable(TIMER0_BASE, TIMER_A);
while(!TimerIntStatus(TIMER0_BASE,false)){
}
}
ST7920.pdf
i have also attached the lcd data sheet for reference , please.
thanks in advance
