Library Description

Defines and initializes driver's UART bus. Declares and defines driver's functions for sending and receiving data bytes, also for checking if data byte ready for reading. It also offers wake-up, sleep mode and check Inhibit pin functions. 

Key functions:

• void ata663211_writeByte(uint8_t input) - Writes sinle byte in rx buffer.
• uint8_t ata663211_readByte() - Read received byte from rx buffer.
• uint8_t ata663211_byteReady() - Checks is there a new byte received.

Examples description

The application is composed of three sections:

• System Initialization - Initializes UART, LOG structures and sets AN pin as input and CS as output.
• Application Initialization -  Initalizes UART driver and makes an initial log.
• Application Task - Checks if new data byte have received in rx buffer (ready for reading), and if ready than reads one byte from rx buffer.

void applicationTask() 
{
    char tmp;
    uint8_t rdyFlag;

// RECEIVER - UART polling

    rdyFlag = ata663211_byteReady();
    
    if (1 == rdyFlag)
    {
        tmp = ata663211_readByte();
        mikrobus_logWrite( &tmp, _LOG_BYTE );
    }
    
// TRANSMITER - TX each 2 sec
/*
    for (tmp = 0; tmp < 9; tmp++)
    {
        ata663211_writeByte( MESSAGE_DATA[tmp] );
        mikrobus_logWrite( "MESSAGE SENT", _LOG_LINE );
    }
    Delay_ms(2000);
*/
}       

Other mikroE Libraries used in the example:

• UART​

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 click or 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