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29 changes: 27 additions & 2 deletions cores/arduino/pins_arduino.h
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ extern "C" {

#define NOT_AN_INTERRUPT NC // -1
#define DEND PEND
#define NUM_DIGITAL_PINS DEND
#define NUM_DIGITAL_PINS ((uint32_t)DEND)
#define NUM_ANALOG_INPUTS (AEND-A0)

// Convert a digital pin number Dxx to a PinName PX_n
Expand Down Expand Up @@ -62,9 +62,34 @@ uint32_t pinNametoDigitalPin(PinName p);
pin_in_pinmap(digitalPinToPinName(p), PinMap_SPI_SSEL))


#define digitalPinToPort(p) (get_GPIO_Port(digitalPinToPinName(p)))
#define digitalPinToPort(p) (get_GPIO_Port(STM_PORT(digitalPinToPinName(p))))
#define digitalPinToBitMask(p) (STM_GPIO_PIN(digitalPinToPinName(p)))

#define analogInPinToBit(p) (STM_PIN(digitalPinToPinName(p)))
#define portOutputRegister(P) (&(P->ODR))
#define portInputRegister(P) (&(P->IDR))

#define portSetRegister(P) (&(P->BSRR))
#if defined(STM32F2xx) || defined(STM32F4xx) || defined(STM32F7xx)
// For those series reset are in the high part so << 16U needed
#define portClearRegister(P) (&(P->BSRR))
#else
#define portClearRegister(P) (&(P->BRR))
#endif


#if defined(STM32F1xx)
// Config registers split in 2 registers:
// CRL: pin 0..7
// CRH: pin 8..15
// Return only CRL
#define portModeRegister(P) (&(P->CRL))
#else
#define portModeRegister(P) (&(P->MODER))
#endif
#define portConfigRegister(P) (portModeRegister(P))


#define digitalPinIsValid(p) (digitalPinToPinName(p) != NC)

// As some pin could be duplicated in digitalPin[]
Expand Down
13 changes: 11 additions & 2 deletions cores/arduino/wiring_constants.h
Original file line number Diff line number Diff line change
Expand Up @@ -112,10 +112,19 @@ enum BitOrder {
#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))

typedef unsigned int word;

#define bit(b) (1UL << (b))
//macro added for compatibility
#ifndef _BV
#define _BV(bit) (1 << (bit))
#endif
#ifndef cbi
#define cbi(reg, bitmask) *reg &= ~bitmask
#endif
#ifndef sbi
#define sbi(reg, bitmask) *reg |= bitmask
#endif

typedef unsigned int word;

typedef bool boolean ;

Expand Down