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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.15
mikroSDK Library: 2.0.0.0
Category: Digital potentiometer
Downloaded: 215 times
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License: MIT license
DIGI POT 6 Click features the MCP41HVX1 family of devices which have dual power rails (analog and digital). The analog power rail allows high voltage on the resistor network terminal pins.
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DIGI POT 6 Click features the MCP41HVX1 family of devices which have dual power rails (analog and digital). The analog power rail allows high voltage on the resistor network terminal pins.
We provide a library for the DIGIPOT6 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.
This library contains API for DIGIPOT6 Click driver.
Config Object Initialization function.
void digipot6_cfg_setup ( digipot6_cfg_t *cfg );
Initialization function.
DIGIPOT6_RETVAL digipot6_init ( digipot6_t ctx, digipot6_cfg_t cfg );
Click Default Configuration function.
void digipot6_default_cfg ( digipot6_t *ctx );
This function reads data from the specified register address.
uint8_t digipot6_read_data ( digipot6_t *ctx, uint8_t reg ) ;
This function writes a wiper configuration command to the Click module.
void digipot6_write_wiper_cmd ( digipot6_t *ctx, uint8_t cmd );
This function reads data from the specified register address.
void digipot6_set_resistor ( digipot6_t *ctx, uint8_t state, uint8_t mask, uint8_t tcon );
This example showcases how to initialize, configure and use the DIGI POT 6 Click module. The Click is a digital potentiometer. The potentiometer has a programmable wiper which controls the resistance between P0W-POA and POW-POB. An external power supply is required for this example.
The demo application is composed of two sections :
This function initializes and configures the logger and Click modules. This function also sets the Click default configuration.
void application_init ( void )
{
log_cfg_t log_cfg;
digipot6_cfg_t cfg;
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
digipot6_cfg_setup( &cfg );
DIGIPOT6_MAP_MIKROBUS( cfg, MIKROBUS_1 );
digipot6_init( &digipot6, &cfg );
Delay_100ms( );
digipot6_default_cfg( &digipot6 );
Delay_100ms( );
}
This function programs the wiper position and shows the current wiper position in the UART console every second.
void application_task ( void )
{
uint8_t wiper;
uint16_t cnt;
for ( cnt = 0; cnt <= 255; cnt += 15 )
{
digipot6_write_data( &digipot6, DIGIPOT6_VOLATILE_WIPER_0, cnt );
Delay_ms ( 10 );
wiper = digipot6_read_data( &digipot6, DIGIPOT6_VOLATILE_WIPER_0 );
log_printf( &logger, " * Wiper position: %u *\r\n", ( uint16_t ) wiper );
Delay_ms ( 1000 );
}
}
The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.
Other mikroE Libraries used in the example:
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.