common/spi_io.h

   1 #ifndef _SPI_IO_H_
   2 #define _SPI_IO_H_
   3
   4 #include <stdio.h>
   5 #include <stdint.h>
   6
   7 #include "spi_io_conf.h"
   8
   9 void spi_io_init(void);
  10
  11 // state variables.
  12 extern volatile uint8_t spi_io_rx_nl; // new line counter
  13
  14 // non-standard (fast) io
  15 void spi_putchar(uint8_t ch);
  16 void spi_puts(const char * string);
  17 void spi_o_puts(const char * string); // overwriting puts
  18 void spi_puth(uint8_t hex);       // put hex (uppercase, no prefix added)
  19 void spi_puth2(uint16_t hex);     // ^^, 2 bytes.
  20 int spi_getchar(void);
  21
  22 // standard io
  23 //#define SPI_IO_STANDARD // 106B flash / 16B ram
  24 #ifdef SPI_IO_STANDARD
  25 //static int spi_getc(FILE * stream);
  26 //static int spi_putc(char c, FILE * stream);
  27 extern FILE * spi_io;
  28 #endif
  29
  30 #endif