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  1. #include <stdio.h>
  2. #include <avr/io.h>
  3. #include <util/delay.h>
  4. #include <avr/interrupt.h>
  5. #include <avr/cpufunc.h>
  6.  
  7. #define DDR_SPI DDRB
  8. #define DD_MOSI DDB5
  9. #define DD_MISO DDB6
  10. #define DD_SCK  DDB7
  11.  
  12. #include "uart.h"
  13.  
  14. void spi_init(void) {
  15.     DDR_SPI = (1<<DD_MOSI)|(1<<DD_SCK);
  16.     SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR0);
  17. }
  18.  
  19. FILE usart0_str = FDEV_SETUP_STREAM(USART0SendByte, USART0ReceiveByte, _FDEV_SETUP_RW);
  20.  
  21. void print_block(uint8_t *block_address, uint16_t length)
  22. {
  23.     uint16_t i, j;
  24.     uint8_t byte;
  25.  
  26.     for(i = 0; i < length / 16; i++)
  27.     {
  28.         printf("%04x: ", i * 16);
  29.  
  30.         for(j = 0; j < 16; j++)
  31.         {
  32.             printf("%02x", block_address[i * 16 + j]);
  33.         }
  34.  
  35.         printf(" ");
  36.         for(j = 0; j < 16; j++)
  37.         {
  38.             byte = block_address[i * 16 + j];
  39.  
  40.             if ((byte >= 32) && byte <= 126)
  41.             printf("%c", byte);
  42.             else
  43.             printf(".");
  44.         }
  45.  
  46.         printf("\n");
  47.     }
  48. }
  49.  
  50. int main(void) {
  51.     //uint8_t i;
  52.     uint8_t byte;
  53.  
  54.     USART0Init();
  55.     stdin=stdout=&usart0_str;
  56.  
  57.     _delay_ms(1);
  58.     spi_init();
  59.     printf("Start\r\n");
  60.     byte = 0x00;
  61.  
  62.     //for(i = 0; i < 10; i++){
  63.     SPDR = 0xFF;
  64.     while(!(SPSR & (1<<SPIF))){
  65.         byte++;
  66.     }
  67.  
  68.     printf("%d\r\n", byte);
  69.     byte = 0x00;
  70.  
  71.     SPDR = 0xFF;
  72.     while(!(SPSR & (1<<SPIF))){
  73.         byte++;
  74.     }
  75.  
  76.     printf("%d\r\n", byte);
  77.     byte = 0x00;
  78.  
  79.     // }
  80.  
  81.     printf("Stop\n");
  82.  
  83.  
  84.     while (1) {
  85.         _NOP();
  86.     }
  87.  
  88.     return 1;
  89. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
prog.c:2:20: fatal error: avr/io.h: No such file or directory
 #include <avr/io.h>
                    ^
compilation terminated.
stdout
copy 
Standard output is empty
https://ideone.com/6ykoue
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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