periph_conf.h

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#ifndef PERIPH_CONF_H
#define PERIPH_CONF_H
 
#include "macros/units.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef CLOCK_CORECLOCK
#define CLOCK_CORECLOCK     GHZ(1)
#endif
 
#define NATIVE_TIMER_MIN_RES 200
#define RANDOM_NUMOF        (1U)
#define TIMER_NUMOF            (1U)
#define TIMER_CHANNEL_NUMOF    (1U)    
/* timer_set_absolute() has a high margin for possible underflow if set with
 * value not far in the future. To prevent this, we set high backoff values
 * here.
 */
#define XTIMER_BACKOFF      200
#define XTIMER_ISR_BACKOFF  200
 
#ifndef UART_NUMOF
#define UART_NUMOF (1U)
#endif
#ifndef PWM_NUMOF
#define PWM_NUMOF (8U)
#endif
 
#ifndef QDEC_NUMOF
#define QDEC_NUMOF (8U)
#endif
 
#if !defined(SPI_NUMOF) || defined(DOXYGEN)
#define SPI_NUMOF (1U)
#endif
 
#if !defined(SPI_MAXCS) || defined(DOXYGEN)
#define SPI_MAXCS (4U)
#endif
 
#define SPI_HWCS(x)     (UINT_MAX - SPI_MAXCS + x)
#ifdef __cplusplus
}
#endif
 
#endif /* PERIPH_CONF_H */