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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.12
mikroSDK Library: 2.0.0.0
Category: Port expander
Downloaded: 187 times
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License: MIT license
Expand 9 Click is a compact add-on board that contains a multi-port I/O expander. This board features the SX1509QB, the world’s lowest voltage level shifting GPIO expander from Semtech Corporation. The SX1509QB comes in a 16-channel configuration and allows easy serial expansion of I/O through a standard I2C serial interface. It also has a built-in level shifting feature making it highly flexible in power supply systems where communication between incompatible I/O voltages is required, an integrated LED driver for enhanced lighting, and a keypad scanning engine to implement keypad applications up to 8x8 matrix.
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4710_expand_9_click.zip [613.21KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 |
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Expand 9 Click is a compact add-on board that contains a multi-port I/O expander. This board features the SX1509QB, the world’s lowest voltage level shifting GPIO expander from Semtech Corporation. The SX1509QB comes in a 16-channel configuration and allows easy serial expansion of I/O through a standard I2C serial interface. It also has a built-in level shifting feature making it highly flexible in power supply systems where communication between incompatible I/O voltages is required, an integrated LED driver for enhanced lighting, and a keypad scanning engine to implement keypad applications up to 8x8 matrix.
We provide a library for the Expand9 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
This library contains API for Expand9 Click driver.
expand9_cfg_setup
Config Object Initialization function.
void expand9_cfg_setup ( expand9_cfg_t *cfg );
expand9_init
Initialization function.
err_t expand9_init ( expand9_t *ctx, expand9_cfg_t *cfg );
expand9_default_cfg
Click Default Configuration function.
err_t expand9_default_cfg ( expand9_t *ctx );
expand9_set_ch_output_state
Expand 9 set channel output state function.
err_t expand9_set_ch_output_state ( expand9_t *ctx, uint8_t ch_pos, expand9_ch_state_value_t ch_state );
expand9_led_driver_config
Expand 9 LED driver configuration function.
err_t expand9_led_driver_config ( expand9_t *ctx, uint8_t ch_pos, uint8_t freq_div, uint8_t lin_log );
expand9_soft_reset
Expand 9 software reset function.
err_t expand9_soft_reset ( expand9_t *ctx );
This is an example that demonstrates the use of the Expand 9 Click board™. The library initializes and defines the I2C bus drivers to write and read data from registers.
The demo application is composed of two sections :
The initialization of I2C module, log UART, and additional pins. After driver initialization the app set default settings.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
expand9_cfg_t expand9_cfg; /**< Click config object. */
/**
* 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.
expand9_cfg_setup( &expand9_cfg );
EXPAND9_MAP_MIKROBUS( expand9_cfg, MIKROBUS_1 );
err_t init_flag = expand9_init( &expand9, &expand9_cfg );
if ( I2C_MASTER_ERROR == init_flag )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
expand9_default_cfg ( &expand9 );
log_info( &logger, " Application Task " );
Delay_ms ( 100 );
}
his is an example that demonstrates the use of the Expand 9 Click board™. This example shows the capabilities of the Expand 9 Click by toggling each of 16 available channels. Results are being sent to the Usart Terminal where you can track their changes.
void application_task ( void )
{
expand9_soft_reset( &expand9 );
Delay_ms ( 100 );
for ( uint8_t cnt = 0; cnt < 16; cnt++ )
{
expand9_set_ch_output_state( &expand9, cnt, CH_OUTPUT_ON );
Delay_ms ( 100 );
expand9_set_ch_output_state( &expand9, cnt, CH_OUTPUT_OFF );
Delay_ms ( 100 );
}
for ( uint8_t cnt = 15; cnt > 0; cnt-- )
{
expand9_set_ch_output_state( &expand9, cnt, CH_OUTPUT_ON );
Delay_ms ( 100 );
expand9_set_ch_output_state( &expand9, cnt, CH_OUTPUT_OFF );
Delay_ms ( 100 );
}
expand9_soft_reset( &expand9 );
Delay_ms ( 100 );
for ( uint8_t cnt = 0; cnt < 16; cnt++ )
{
expand9_led_driver_config( &expand9, cnt, EXPAND9_FREQ_DIV_1, EXPAND9_LED_MODE_LINEAR );
expand9_set_intensity( &expand9, cnt, 10 );
Delay_ms ( 100 );
expand9_led_driver_config( &expand9, cnt, EXPAND9_FREQ_DIV_1, EXPAND9_LED_MODE_LINEAR );
expand9_set_intensity( &expand9, cnt, 200 );
Delay_ms ( 100 );
}
for ( uint8_t cnt = 15; cnt > 0; cnt-- )
{
expand9_led_driver_config( &expand9, cnt, EXPAND9_FREQ_DIV_1, EXPAND9_LED_MODE_LINEAR );
expand9_set_intensity( &expand9, cnt, 200 );
Delay_ms ( 100 );
expand9_led_driver_config( &expand9, cnt, EXPAND9_FREQ_DIV_1, EXPAND9_LED_MODE_LINEAR );
expand9_set_intensity( &expand9, cnt, 10 );
Delay_ms ( 100 );
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
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. UART terminal is available in all MikroElektronika compilers.