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96 regels
1.7 KiB
96 regels
1.7 KiB
#include <avr/io.h> // register definitions
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#include <avr/pgmspace.h> // storing data in program memory
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#include <avr/interrupt.h> // interrupt vectors
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#include <util/delay.h> // delay functions
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#include <stdint.h>
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#include <stdbool.h>
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// Include stuff from the library
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#include "lib/iopins.h"
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#include "lib/usart.h"
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#include "lib/debounce.h"
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/* uppercase key names */
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static const char names[] = {
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'L', // 2
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'U', // 3
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'R', // 4
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'D', // 5
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'I', // 6
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'J', // 7
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'K', // 8
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'X', // 9
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'B', // 10
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'A', // 11
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'Y', // 12
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};
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/* nr of keys down */
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uint8_t down = 0;
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static void pin_change_handler(uint8_t n, bool state)
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{
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char c = names[n];
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if (!state) {
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c += 32; // lowecase
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}
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if (state) {
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down++;
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} else {
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down--;
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}
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pin_set(9, (bool)(down > 0));
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usart_tx((uint8_t) c);
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}
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static void hw_init(void)
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{
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usart_init(BAUD_115200);
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as_input_pu(2);
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as_input_pu(3);
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as_input_pu(4);
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as_input_pu(5);
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as_input_pu(6);
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as_input_pu(7);
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as_input_pu(8);
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// 9 - LED
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as_output(9); // front LED
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as_output(13); // LED on pro mini
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as_input_pu(10);
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as_input_pu(11);
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as_input_pu(12);
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as_input_pu(14);
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// cant use loop because macros
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debo_add(2, true, pin_change_handler);
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debo_add(3, true, pin_change_handler);
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debo_add(4, true, pin_change_handler);
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debo_add(5, true, pin_change_handler);
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debo_add(6, true, pin_change_handler);
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debo_add(7, true, pin_change_handler);
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debo_add(8, true, pin_change_handler);
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debo_add(14, true, pin_change_handler);
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debo_add(10, true, pin_change_handler);
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debo_add(11, true, pin_change_handler);
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debo_add(12, true, pin_change_handler);
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}
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void main(void)
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{
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hw_init();
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int cnt = 0;
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while (1) {
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_delay_ms(1);
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debo_tick();
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}
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}
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