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#ifndef __SAMD21_INTERNAL_H
#define __SAMD21_INTERNAL_H
// Local definitions for samd21 code
#include <stdint.h> // uint32_t
#define GPIO(PORT, NUM) (((PORT)-'A') * 32 + (NUM))
#define GPIO2PORT(PIN) ((PIN) / 32)
#define GPIO2BIT(PIN) (1<<((PIN) % 32))
void enable_pclock(uint32_t clock_id, uint32_t pmask);
void gpio_peripheral(uint32_t gpio, char ptype, int32_t pull_up);
#endif // internal.h
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