Library Description

The library initializes and defines the SPI bus driver. The library includes function for sets output voltage and functions for enable chip. The user also has the function for sets work mode.

Key functions :

void buck7_setOutputVoltage(uint16_t voltage) - Function for set output voltage
void buck7_enable() - Function for enable chip
void buck7_setMode(uint8_t mode) - Function for set chip mode

Example description

The application is composed of three sections:

• System Initialization - Initializes SPI module and set AN,RST,CS and PWM pin as OUTPUT
• Application Initialization - Initializes Driver init, enable chip and set mode
• Application Task - (code snippet) - Sets output voltage to 5V, 10V, 15V, 20V, 25V every 3 seconds. It is necessary to set the input voltage on 2.7V + maximum output voltage.

void applicationTask()
{
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_5V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_10V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_15V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_20V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_25V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_20V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( _BUCK7_OUT_VOLTAGE_15V );
 Delay_ms( 3000 );
 buck7_setOutputVoltage( 0x0BB8 ); /* 10 V */
 Delay_ms( 3000 );
}

mikroE Libraries used in the example:

• SPI

Additional notes and information

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.