Change the setting of the digital output pins.

static inline void digitalWrite(uint8_t u8pin, E_PIN_STATE ulVal)

The first parameter specifies the pin number to be set, and the second parameter specifies either HIGH or LOW.

Enables DIO interrupts.

void attachIntDio(uint8_t u8pin, E_PIN_INT_MODE mode)

For a preconfigured pin, the first parameter is the pin number for which you want to enable interrupts, the second is the interrupt direction (rising, falling.

Example

Set up an interrupt to be generated when the DIO5 pin changes from HIGH to LOW.

void setup() {
  the_twelite.app.use<myAppClass>();
  
  pinMode(PIN_DIGITAL::DIO5, PIN_MODE::INPUT_PULLUP);
  attachIntDio(PIN_DIGITAL::DIO5, PIN_INT_MODE::FALLING);
}

void loop() {
  ;
}

myAppClass.hpp

class myAppClass: public mwx::BrdPal, MWX_APPDEFS_CRTP(myAppClasslMot)
{

};

Basic definition of the application behavior myAppClass. Details are omitted.

myAppClass.cpp

/*****************************************************************/
// MUST DEFINE CLASS NAME HERE
#define __MWX_APP_CLASS_NAME myAppClass
#include "_mwx_cbs_cpphead.hpp"
/*****************************************************************/

MWX_DIO_INT(PIN_DIGITAL::DIO5, uint32_t arg, uint8_t& handled) {
  static uint8_t ct;
  digitalWrite(PIN_DIGITAL::DIO12, (++ct & 1) ? HIGH : LOW);
	handled = false; // if true, no further event.
}

MWX_DIO_EVENT(PIN_DIGITAL::DIO5, uint32_t arg) {
  Serial << '*';	
}

/*****************************************************************/
// common procedure (DO NOT REMOVE)
#include "_mwx_cbs_cpptail.cpp"
// MUST UNDEF CLASS NAME HERE
#undef __MWX_APP_CLASS_NAME
} // mwx
/*****************************************************************/

Description of the interrupt handler of the application behavior myAppClass, which inverts the output setting of DIO12 when an interrupt of DIO5 is generated and displays * on the serial port Serial for events occurring after the interrupt handler is finished.

Reads the values of all ports in the input settings at once.

uint32_t digitalReadBitmap()

The values are stored in the order of DIO0 ... DIO19 from the LSB side. DIO19 are stored in this order.

The pins on the HIGH side are set to 1 and the pins on the LOW side are set to 0.

Unregisters the interrupt handler.

void detachIntDio(uint8_t u8pin)

Reads the value of the port of the input configuration.

Get the input value of a pin that has been previously set as an input, either LOW or HIGH.

The following functions are used for general-purpose digital IO (DIO) operations.

• pinMode()

• digitalWrite()

• digitalRead()

• attachIntDio()

• detachIntDio()

Constants

Pin name and number

Mode of pin（DIO0..19)

The following enumeration values are handled with the type name E_PIN_MODE.

Mode of the pin (DO0,1)

The following enumeration values are handled with the type name E_PIN_MODE.

pin_state

The following enumeration values are handled with the type name E_PIN_STATE.

Rising and falling edge of pin

The following enumeration values are handled with the type name E_PIN_INT_MODE.

Sets the DIO (general-purpose digital IO) pin.

This function allows you to change the state of DIO0..19 and the pins DO0,1. The setting contents are described in the enumeration value of E_PIN_MODE, and .