68 lines
1.7 KiB
Plaintext
68 lines
1.7 KiB
Plaintext
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "TM4C123GH6PM.h"
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#include "ez123G.h"
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char str[100];
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int main(void)
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{
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PEZOBJ_LCD lcd;
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uint16_t i = 0;
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// Enable GPIOD[3:0] and GPIOE[3:1]
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// Config for GPIOD and GPIOE
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// 1. Enable Clock on GPIOs
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SYSCTL->RCGCGPIO |= 0x18;
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// allow time for clock to stabilize
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while ((SYSCTL->PRGPIO & 0x18) != 0x18) {};
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// 2. Unlock PD7
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GPIOD->LOCK = 0x4C4F434B;
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GPIOD->CR |= 0x80;
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// 3. Config AMSEL to disable analog function
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GPIOD -> AMSEL = 0x00;
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GPIOE -> AMSEL = 0x00;
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// 4. Config PCTL to select GPIO
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GPIOD -> PCTL = 0x00;
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GPIOE -> PCTL = 0x00;
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// 5. Set DIR to 0 for input, 1 for output
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GPIOD -> DIR |= 0x0F;
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GPIOE -> DIR |= 0x0E;
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// 6. Set AFSEL bits to 0
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GPIOD -> AFSEL = 0x00;
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GPIOE -> AFSEL = 0x00;
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// 7. Set PUE bits to 1 to enable internal pull-up (Skipped)
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// 8. Set DEN bits to 1 to enable data pins
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GPIOD -> DEN |= 0x0F;
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GPIOE -> DEN |= 0x0E;
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lcd = ezLCD_Create();
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ezLCD_Connect_DataPort(lcd, GPIOD, PIN_3_0);
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ezLCD_Connect_ENPin(lcd, GPIOE, PIN1);
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ezLCD_Connect_RSPin(lcd, GPIOE, PIN2);
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ezLCD_Connect_RWPin(lcd, GPIOE, PIN3);
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ezLCD_Start(lcd);
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ezLCD_LoadVerticalBargraphFonts(lcd);
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ezLCD_ClearDisplay(lcd);
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int a = 4;
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int total = 0;
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while(a <= 120){
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ezLCD_Position(lcd, 0, 0);
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sprintf(str, "+ %d", a);
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total += a;
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ezLCD_PrintString(lcd, str);
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ezLCD_Position(lcd, 1, 0);
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sprintf(str, "=%d", total);
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ezLCD_PrintString(lcd, str);
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a += 2;
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timer_waitMillis(50);
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}
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}
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