128 lines
3.0 KiB
C
128 lines
3.0 KiB
C
/**
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* (C) Copyright Collin J. Doering 2015
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* File: lcdOutput.c
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* Author: Collin J. Doering <collin.doering@rekahsoft.ca>
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* Date: Sep 17, 2015
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*/
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/*---------.
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| Includes |
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`---------*/
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/power.h>
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#include <util/delay.h>
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#include <stdlib.h>
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#include "lcdLib.h"
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#include "ansi_escapes.h"
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#include "USART.h"
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#define STATUS_LED_PORT PORTC
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#define STATUS_LED_DDR DDRC
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#define STATUS_LED PC5
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//--------------------------------------------------
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void flashLED(uint8_t times) {
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while (times > 0) {
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STATUS_LED_PORT |= 1 << STATUS_LED; // turn on status LED
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_delay_ms(100);
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STATUS_LED_PORT &= ~(1 << STATUS_LED); // turn status LED off
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_delay_ms(100);
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times--;
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}
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}
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//--------------------------------------------------
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/*
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Initialize previous, current, and next screen variables to spaces
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*/
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char* initScreenMem(const uint8_t len) {
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char *scrn = (char*) malloc(len * sizeof(char));
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for (uint8_t i = 0; i < len; i++) {
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scrn[i] = ' ';
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}
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return scrn;
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}
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int main(void) {
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clock_prescale_set(clock_div_1);
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STATUS_LED_DDR |= 1 << STATUS_LED; // DEBUG
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// Allocate and init first block of heap for storing LCD data
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char* scrn = initScreenMem(LCD_CHARACTERS_PER_SCREEN);
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initUSART();
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char serialChar;
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initLCD();
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//initLCDByInternalReset();
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flashLED(5); // DEBUG
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writeStringToLCD(CUB(1));
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while (1) {
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serialChar = receiveByte();
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switch (serialChar) {
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case '\r':
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writeStringToLCD("\r\n");
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transmitString("\n" CNL(1) "\r");
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break;
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;;
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case '\f':
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writeCharToLCD(serialChar);
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transmitString(ED(2) CUP(1,1));
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break;
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;;
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case 0x7f: // Backspace (sent as delete)
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writeStringToLCD("\b \b");
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transmitString(CUB(1) " " CUB(1));
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break;
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;;
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case '\e': // Beginning of ANSI escape
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{
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char j = receiveByte();
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if (j == '[') {
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char buf[7] = "\e[";
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for (uint8_t i = 2, j = receiveByte(); i < 7 && j > 0x20 && j < 0x7e; i++, j = receiveByte()) {
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buf[i] = j;
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if (j > 0x40 && j < 0x7e) {
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break;
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}
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}
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writeStringToLCD(buf);
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}
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break;
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}
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;;
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default:
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writeCharToLCD(serialChar);
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transmitByte(serialChar); // Echo character back to serial console
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;;
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}
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}
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return 0;
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}
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