We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]
Rating:
Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.13
mikroSDK Library: 2.0.0.0
Category: Rotary encoder
Downloaded: 364 times
Not followed.
License: MIT license
Counter Click carries an LS7366R 32-bit quadrature counter. The top of the board has a pinout for interfacing with incremental encoders. The interface has ENCA and ENCB pins, along with ENCI, which is a programmable index.
Do you want to subscribe in order to receive notifications regarding "Counter Click" changes.
Do you want to unsubscribe in order to stop receiving notifications regarding "Counter Click" changes.
Do you want to report abuse regarding "Counter Click".
DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
---|---|---|
3697_counter_click.zip [475.84KB] | 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 |
|
Counter Click carries an LS7366R 32-bit quadrature counter. The top of the board has a pinout for interfacing with incremental encoders. The interface has ENCA and ENCB pins, along with ENCI, which is a programmable index.
We provide a library for the Counter 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 Counter Click driver.
Config Object Initialization function.
void counter_cfg_setup ( counter_cfg_t *cfg );
Initialization function.
COUNTER_RETVAL counter_init ( counter_t ctx, counter_cfg_t cfg );
Click Default Configuration function.
void counter_default_cfg ( counter_t *ctx );
This function reads CNTR, using Click object.
int32_t counter_read_cntr ( counter_t *ctx );
This function reads STR, using Click object.
uint8_t counter_read_str ( counter_t *ctx );
This function reads OTR, using Click object.
int32_t counter_read_otr ( counter_t *ctx );
This application measures the speed and the position of the DC motor shafts.
The demo application is composed of two sections :
Initializes driver init and chip init
void application_init ( void )
{
log_cfg_t log_cfg;
counter_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.
counter_cfg_setup( &cfg );
COUNTER_MAP_MIKROBUS( cfg, MIKROBUS_1 );
counter_init( &counter, &cfg );
counter_default_cfg( &counter );
Delay_ms ( 300 );
}
Reads data from the CNTR register and calculates the speed of the motor in Rad/s. All data is being displayed on the USB UART terminal where you can track their changes. The CNTR is a software configurable 8, 16, 24 or 32-bit up/down counter which counts the up/down pulses resulting from the quadrature clocks applied at the A and B inputs, or alternatively, in non-quadrature mode, pulses applied at the A input.
void application_task ( void )
{
count = counter_read_cntr( &counter );
log_printf( &logger, "Counter: %ld\r\n", count );
speed = ( float ) ( count - count_old ) / 3600.0;
speed *= 6.283185;
log_printf( &logger, "Speed: %.4f Rad/s\r\n", speed );
count_old = count;
log_printf( &logger, "-------------------------\r\n" );
Delay_ms ( 1000 );
}
An appropriate motor with optical encoder needs to be connected to the Click board.
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.