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78 lines
1.6 KiB
78 lines
1.6 KiB
/** @file system.h
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@author M. P. Hayes, UCECE
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@date 15 May 2007
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@brief System specific definitions
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*/
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#ifndef SYSTEM_H
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#define SYSTEM_H
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/* Data typedefs. */
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#include <stdint.h>
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typedef uint8_t bool;
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/** Useful macros. */
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#define BIT(X) (1 << (X))
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#define ARRAY_SIZE(ARRAY) (sizeof (ARRAY) / sizeof (ARRAY[0]))
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#define __unused__ __attribute__ ((unused))
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/** Clock frequency Hz. */
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#define F_CPU 8000000
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/** LED matrix columns. (Note these are labelled in reverse order on
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the schematic.) */
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#define LEDMAT_COL1_PIO PC6_PIO
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#define LEDMAT_COL2_PIO PB7_PIO
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#define LEDMAT_COL3_PIO PC4_PIO
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#define LEDMAT_COL4_PIO PC7_PIO
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#define LEDMAT_COL5_PIO PC5_PIO
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#define LEDMAT_COLS_NUM 5
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/** LED matrix rows. */
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#define LEDMAT_ROW1_PIO PB6_PIO
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#define LEDMAT_ROW2_PIO PB5_PIO
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#define LEDMAT_ROW3_PIO PB4_PIO
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#define LEDMAT_ROW4_PIO PB3_PIO
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#define LEDMAT_ROW5_PIO PB2_PIO
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#define LEDMAT_ROW6_PIO PB1_PIO
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#define LEDMAT_ROW7_PIO PB0_PIO
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#define LEDMAT_ROWS_NUM 7
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/** Button. */
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#define BUTTON1 0
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#define BUTTON1_PIO PD7_PIO
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/** Navswitch. */
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#define NAVSWITCH_PUSH_PIO LEDMAT_COL3_PIO
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#define NAVSWITCH_DOWN_PIO NAVSWITCH_PUSH_PIO
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#define NAVSWITCH_EAST_PIO LEDMAT_COL1_PIO
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#define NAVSWITCH_WEST_PIO LEDMAT_COL2_PIO
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#define NAVSWITCH_NORTH_PIO LEDMAT_COL4_PIO
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#define NAVSWITCH_SOUTH_PIO LEDMAT_COL5_PIO
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/** LED (active high). */
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#define LED1 0
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#define LED1_PIO PC2_PIO
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/** Infrared transmitter LED and receiver. */
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#define IR_TX_LOW_PIO PD3_PIO
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#define IR_TX_HIGH_PIO PD0_PIO
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#define IR_RX_PIO PD2_PIO
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#define IR_MODULATION_FREQ 36e3
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/** Initialise clock and disable watchdog timer. */
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void system_init (void);
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#endif
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