Library Description

The library initializes and defines both the I2C and SPI bus driver and offeres drivers that offer a choice for writing and reading one byte into registers. It also alows to user to set state on CS, PWM, TX and RX pins and to check the state of INT pin.

Key functions:

• void adapter_writeData( uint8_t regAddress, uint8_t wrData ); -  Function is used to write the 8-bit data into chosen register.
• uint8_t adapter_readData( uint8_t regAddress );-   Function read the 8-bit data from the chosen register.

Example Description

The application is composed of three sections:

• System Initialization - Initializes GPIO, I2C/SPI and LOG structures, sets INT pin as input, and  CS, PWM , RX and TX pins as output.
• Application Initialization -  Initalizes I2C/SPI driver and makes an initial log.
• Application Task - (code snippet) This are examples that shows the use of the Adapter click board. In I2C example we are reading ID registrer from another device and in SPI example we are writing into shift register.

// I2C example

void applicationTask()
{
    uint8_t rdValue;
    uint8_t logTxt[ 50 ];
    
    rdValue = adapter_readData( 0xFD );
    IntToStr( rdValue, logTxt );
    Ltrim( logTxt );
    mikrobus_logWrite( " Read data :  ", _LOG_LINE );
    mikrobus_logWrite( logTxt, _LOG_LINE );
    mikrobus_logWrite( "-----------------", _LOG_LINE );
    Delay_ms( 2000 );
}

// SPI example

void applicationTask()
{
    adapter_turnPwmOn();
    adapter_writeData( 0x00, 0x79 );
}  

Other mikroE Libraries used in the example:

• I2C
• SPI

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