102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/pgmspace.h>
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#include <util/delay.h>
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#include "hmi_msg.h"
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#include "../lib/andygock_avr-uart/uart.h"
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#include "uart_wrap.h"
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#include "print_helper.h"
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#include "../lib/hd44780_111/hd44780.h"
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#define BAUDRATE 9600
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#define BLINK_DELAY_MS 100
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// For configuring arduino mega pin 25
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#define LED_INIT DDRA |= _BV(DDA3);
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#define LED_ON PORTA |= _BV(PORTA3)
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#define LED_OFF PORTA &= ~_BV(PORTA3)
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#define LED_DELAY _delay_ms(BLINK_DELAY_MS)
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static inline void init_hw (void)
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{
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// IO init
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/// Set arduino pin 25 as output
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LED_INIT;
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// UART init
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uart0_init(UART_BAUD_SELECT(BAUDRATE, F_CPU));
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uart3_init(UART_BAUD_SELECT(BAUDRATE, F_CPU));
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stdout = stdin = &uart0_io;
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stderr = &uart3_out;
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// LCD init
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lcd_init();
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lcd_clrscr();
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// Enable interupts
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sei();
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}
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static inline void start_ui (void)
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{
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// Print program and libc versions
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fprintf_P(stderr, PSTR(PROG_VERSION),
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PSTR(GIT_DESCR), PSTR(__DATE__), PSTR(__TIME__));
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fprintf_P(stderr, PSTR(LIBC_VERSION), PSTR(__AVR_LIBC_VERSION_STRING__));
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// print student name
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fprintf_P(stdout, PSTR(STUD_NAME));
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fputc('\n', stdout); // Add a new line to the uart printout
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lcd_puts_P(PSTR(STUD_NAME));
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// ASCII table print
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print_ascii_tbl(stdout);
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unsigned char ascii[128];
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for (unsigned char i = 0; i < sizeof(ascii); i++) {
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ascii[i] = i;
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}
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print_for_human(stdout, ascii, sizeof(ascii));
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fprintf_P(stdout, PSTR(GET_MONTH_MSG));
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}
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static inline void search_month (void)
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{
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char letter;
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fscanf(stdin, "%c", &letter);
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fprintf(stdout, "%c\n", letter);
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lcd_goto(0x40); // Got to the beginning of the next line
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for (int i = 0; i < 6; i++) {
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if (!strncmp_P(&letter, (PGM_P)pgm_read_word(&months[i]), 1)) {
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fprintf_P(stdout, (PGM_P)pgm_read_word(&months[i]));
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fputc('\n', stdout);
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lcd_puts_P((PGM_P)pgm_read_word(&months[i]));
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lcd_putc(' ');
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}
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}
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lcd_puts_P(PSTR(" ")); // Clear the end of the line
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fprintf_P(stdout, PSTR(GET_MONTH_MSG));
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}
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int main (void)
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{
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init_hw();
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start_ui();
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while (1) {
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LED_ON;
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LED_DELAY;
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if (uart0_available()) {
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search_month();
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}
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LED_OFF;
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LED_DELAY;
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}
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}
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