test/usart_test.c

   1 #include <avr/io.h>
   2 #include <avr/interrupt.h>
   3 #include <stdio.h>
   4 #include "midi.h"
   5
   6 int main(void) {
   7         midi_init();
   8
   9         sei();  // enable interrupts
  10
  11         sysex_start(0xE);
  12                 sysex_data(0xDE);
  13                 sysex_data(0xAD);
  14                 sysex_data(0xBE);
  15                 sysex_data(0xEF);
  16         sysex_end();
  17         return 0;
  18 }
  19
  20 void io_init() {
  21         DDRA = 0xFF;              // Data
  22         PORTA = 0x00;
  23
  24         DDRB = 0xB9;              // spi_clk, spi_in, spi_out, NC, TX, RX, clock in, clock
  25         PORTB = 0x02;
  26
  27         DDRC = 0xFF;              // Address
  28         PORTC = 0x00;
  29
  30         DDRD = 0xFA;              // NC, NC, NC, NC, NC, CAN_INT, MIDI TX & RX
  31         PORTD = 0x00;
  32
  33         DDRE = 0xFF;
  34         PORTE = 0x00;
  35 }
  36