Library description

The library contains functions that perform UART reading, writing and UART rx buffer checking. 

Key functions:

void irda3_writeByte(uint8_t input); - Function writes (sends) one byte to the UART RX buffer

uint8_t irda3_readByte(); - Function reads (receives) one byte from the UART RX buffer

uint8_t irda3_byteReady(); - Function checks state of the RX buffer (new data is placed in)

void irda3_reset(); - Function resets the  and sets back in normal operating mode

Example description

• System Initialization - Initializes peripherals and pins.
• Application Initialization - Initializes click driver.
• Application Task - Checks if new data byte has been received in the RX buffer (ready for reading), and if ready than reads one byte from the RX buffer. In second case application task writes message data via UART and IR interface.

void applicationTask()
{
   uint8_t tmp;
   uint8_t rdyFlag;

// RECEIVER - UART polling 

#ifdef __RX__
   rdyFlag = irda3_byteReady();
   if (1 == rdyFlag)
   {
       tmp = irda3_readByte();
       mikrobus_logWrite( &tmp, _LOG_BYTE );
   }
#endif

// TRANSMITER - TX each 2 sec

#ifdef __TX__  
   for (tmp = 0; tmp < 9; tmp++)
   {
       irda3_writeByte( MESSAGE_DATA[tmp] );
       mikrobus_logWrite( "MESSAGE SENT", _LOG_LINE );
   }
   Delay_ms(2000);
#endif
}

Additional notes and information

Depending on the development board you are using, you may need USB UART click, USB UART 2 clickor RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.