src/stm32f1/internal.h


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#ifndef __STM32F1_INTERNAL_H
#define __STM32F1_INTERNAL_H
// Local definitions for STM32F1 code

#define GPIO(PORT, NUM) (((PORT)-'A') * 16 + (NUM))
#define GPIO2PORT(PIN) ((PIN) / 16)

extern GPIO_TypeDef *const digital_regs[];
extern uint32_t const digital_pins[];

void udelay(uint32_t usecs);

#endif // internal.h