File: main.c

package info (click to toggle)
simulavr 1.0.0%2Bgit20160221.e53413b-1
  • links: PTS
  • area: main
  • in suites: buster
  • size: 5,748 kB
  • sloc: cpp: 35,491; python: 6,991; ansic: 3,567; makefile: 1,072; sh: 653; asm: 414; tcl: 320
file content (67 lines) | stat: -rw-r--r-- 1,311 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
/*
 *  $Id$
 */

// PS-1 Keyboard interface test program

#include <avr/io.h>
#include <stdlib.h>
//include <sig-avr.h>
#include <avr/interrupt.h>
#include <compat/deprecated.h>

#include "serial.h"
#include "kb.h"
#include "StdDefs.h"

// 02-Sep-2008 K. Schwichtenberg Enable INT0 interrupt changed into portable code
// 02-Sep-2008 K. Schwichtenberg Workaround for weakness of simulavrxx (TxD0-Pin set to output)

void initialize(void);


int main(void)
{
    unsigned char key;

    initialize();
    putchar('I');

    while(1)
    {
        key=getchar();
        putchar(key);
        msleep(10);
    }
    return 1;
}

void initialize(void)
   {
   cli();

   PORTB = 0xFD;
   DDRB = 0x02;     // Port B pin 1 as test pin
   TESTPIN_OFF();

   PORTD = 0x5F;
   DDRD = 0xA0;     // All inputs with pullups.  UART will override.
                    // Pin6 - Out as RunLED, Pin7-out as RF module power

   PORTE = 0x02;
   DDRE = 0x02;   // TxD0 set to output (simulavrxx weakness K. Schwichtenberg)

   init_kb();
   init_uart();

   UART_CONTROL_REG = 0x18;   //Transmitter enabled, receiver enabled, no ints
   setbaud(BAUD19K);

   EIMSK= (1<<INT0);        // Enable INT0 interrupt
// EIMSK= 0x40; That might be okay for M163 but is not portable   K.Schwichtenberg

   //putchar('I');

   sei();
   }