Experience the future of high-speed communication with our cutting-edge CAN FD transceiver solution
A
A
Hardware Overview
How does it work?
ATA6571 Click is based on the ATA6571, a standalone high-speed CAN FD transceiver up to 5 Mbit/s that interfaces a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus from Microchip. It offers improved Electromagnetic Compatibility (EMC) and ESD performance. Its advanced low-power management with local and remote Wake-Up support makes achieving low current consumption in Standby and Sleep mode possible, even when the internal I/O and transceiver supplies are switched off. The ATA6571 supports functional safety-related applications. Internal Safety Mechanisms prevent device malfunction due to undervoltage and overtemperature, detect bus dominant and recessive clamping, and prevent blocking of the CAN bus due to permanent dominant or recessive states of RXD and TXD. The ATA6571 has one pin for waking the device from Sleep mode. This pin is connected to a WAKE external switch to generate a local Wake-Up function. A Wake-Up event on the
CAN bus switches the inhibit output pin INH to the High level. The INH pin provides an internal switch towards the battery supply voltage and controls external voltage regulators, the MCP1804 from Microchip. Through SMD jumpers labeled as JMP3V3 and JMP5V, the LDO's output voltages can power up the mikroBUS™ 3.3V and 5V power rails. However, it should be noted that MIKROE does not advise powering up their systems this way. That is why these jumpers are left unpopulated by default. The ATA6571 communicates with MCU using the UART interface with the default baud rate of 9600 bps for data transfer. In addition to UART communication pins from the mikroBUS™ socket, the user can connect the TX/RX signals directly through the UART External header on the board's left edge. This Click board™ comes equipped with the standard DB-9 connector, making interfacing with the CAN bus simple and easy. Besides, the user can connect the CAN signals directly through the CAN External header, also on the board's left
edge. In addition to these features, the ATA6571 uses several GPIO pins connected to the mikroBUS™ socket. The EN pin routed on the CS pin of the mikroBUS™ is used for Enable Control. Together with the STB pin routed on the AN pin of the mikroBUS™ socket, which represents Standby Mode Control, the EN pin controls the device's operating mode. It also provides a pull-down to force the transceiver into Recessive mode if EN is disconnected. Next to these pins, the ATA6571 uses another pin labeled ERR routed on the RST pin of the mikroBUS™ used as Error Indication. This pin reflects the device status and can be visually displayed using the LED indicator labeled as ERR. This Click board™ is designed to operate with both 3.3V and 5V logic voltage levels selected via the VIO SEL jumper. It allows both 3.3V and 5V capable MCUs to use the UART communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
Features overview
Development board
Arduino UNO is a versatile microcontroller board built around the ATmega328P chip. It offers extensive connectivity options for various projects, featuring 14 digital input/output pins, six of which are PWM-capable, along with six analog inputs. Its core components include a 16MHz ceramic resonator, a USB connection, a power jack, an
ICSP header, and a reset button, providing everything necessary to power and program the board. The Uno is ready to go, whether connected to a computer via USB or powered by an AC-to-DC adapter or battery. As the first USB Arduino board, it serves as the benchmark for the Arduino platform, with "Uno" symbolizing its status as the
first in a series. This name choice, meaning "one" in Italian, commemorates the launch of Arduino Software (IDE) 1.0. Initially introduced alongside version 1.0 of the Arduino Software (IDE), the Uno has since become the foundational model for subsequent Arduino releases, embodying the platform's evolution.
Microcontroller Overview
MCU Card / MCU
Architecture
AVR
MCU Memory (KB)
32
Silicon Vendor
Microchip
Pin count
28
RAM (Bytes)
2048
You complete me!
Accessories
Click Shield for Arduino UNO has two proprietary mikroBUS™ sockets, allowing all the Click board™ devices to be interfaced with the Arduino UNO board without effort. The Arduino Uno, a microcontroller board based on the ATmega328P, provides an affordable and flexible way for users to try out new concepts and build prototypes with the ATmega328P microcontroller from various combinations of performance, power consumption, and features. The Arduino Uno has 14 digital input/output pins (of which six can be used as PWM outputs), six analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header, and reset button. Most of the ATmega328P microcontroller pins are brought to the IO pins on the left and right edge of the board, which are then connected to two existing mikroBUS™ sockets. This Click Shield also has several switches that perform functions such as selecting the logic levels of analog signals on mikroBUS™ sockets and selecting logic voltage levels of the mikroBUS™ sockets themselves. Besides, the user is offered the possibility of using any Click board™ with the help of existing bidirectional level-shifting voltage translators, regardless of whether the Click board™ operates at a 3.3V or 5V logic voltage level. Once you connect the Arduino UNO board with our Click Shield for Arduino UNO, you can access hundreds of Click boards™, working with 3.3V or 5V logic voltage levels.
DB9 Cable Female-to-Female (2m) cable is essential for establishing dependable serial data connections between devices. With its DB9 female connectors on both ends, this cable enables a seamless link between various equipment, such as computers, routers, switches, and other serial devices. Measuring 2 meters in length, it offers flexibility in arranging your setup without compromising data transmission quality. Crafted with precision, this cable ensures consistent and reliable data exchange, making it suitable for industrial applications, office environments, and home setups. Whether configuring networking equipment, accessing console ports, or utilizing serial peripherals, this cable's durable construction and robust connectors guarantee a stable connection. Simplify your data communication needs with the 2m DB9 female-to-female cable, an efficient solution designed to meet your serial connectivity requirements easily and efficiently.
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Track your results in real time
Application Output
After loading the code example, pressing the "DEBUG" button builds and programs it on the selected setup.
After programming is completed, a header with buttons for various actions available in the IDE appears. By clicking the green "PLAY "button, we start reading the results achieved with Click board™.
Upon completion of programming, the Application Output tab is automatically opened, where the achieved result can be read. In case of an inability to perform the Debug function, check if a proper connection between the MCU used by the setup and the CODEGRIP programmer has been established. A detailed explanation of the CODEGRIP-board connection can be found in the CODEGRIP User Manual. Please find it in the RESOURCES section.
Software Support
Library Description
This library contains API for ATA6571 Click driver.
Key functions:
ata6571_set_operating_mode
- This function sets the device operating mode by controlling the EN and NSTB pinsata6571_generic_write
- This function writes a desired number of data bytes by using UART serial interfaceata6571_generic_read
- This function reads a desired number of data bytes by using UART serial interface
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* @file main.c
* @brief ATA6571 Click Example.
*
* # Description
* This example reads and processes data from ATA6571 clicks.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver and sets the device operating mode.
*
* ## Application Task
* Depending on the selected demo application mode, it reads all the received data or
* sends the desired message every 2 seconds.
*
* ## Additional Function
* - static void ata6571_clear_app_buf ( void )
* - static err_t ata6571_process ( void )
*
* @author Stefan Filipovic
*
*/
#include "board.h"
#include "log.h"
#include "ata6571.h"
#define PROCESS_BUFFER_SIZE 200
/*** Demo application mode selection, only one mode should be selected at the same time ***/
#define DEMO_APP_RECEIVER
// #define DEMO_APP_TRANSMITTER
#define TEXT_TO_SEND "MikroE - ATA6571 click board\r\n"
static ata6571_t ata6571;
static log_t logger;
static char app_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
static int32_t app_buf_len = 0;
static int32_t app_buf_cnt = 0;
/**
* @brief ATA6571 clearing application buffer.
* @details This function clears memory of application buffer and reset it's length and counter.
* @note None.
*/
static void ata6571_clear_app_buf ( void );
/**
* @brief ATA6571 data reading function.
* @details This function reads data from device and concatenates data to application buffer.
*
* @return @li @c 0 - Read some data.
* @li @c -1 - Nothing is read.
* @li @c -2 - Application buffer overflow.
*
* See #err_t definition for detailed explanation.
* @note None.
*/
static err_t ata6571_process ( void );
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
ata6571_cfg_t ata6571_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 );
Delay_ms( 100 );
log_info( &logger, " Application Init " );
// Click initialization.
ata6571_cfg_setup( &ata6571_cfg );
ATA6571_MAP_MIKROBUS( ata6571_cfg, MIKROBUS_1 );
err_t init_flag = ata6571_init( &ata6571, &ata6571_cfg );
if ( UART_ERROR == init_flag )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
Delay_ms( 100 );
#ifdef DEMO_APP_RECEIVER
log_printf( &logger, "---- RECEIVER MODE ----\r\n" );
#endif
#ifdef DEMO_APP_TRANSMITTER
log_printf( &logger, "---- TRANSMITTER MODE ----\r\n" );
#endif
ata6571_set_operating_mode ( &ata6571, ATA6571_OPERATING_MODE_NORMAL );
app_buf_len = 0;
app_buf_cnt = 0;
log_info( &logger, " Application Task " );
Delay_ms( 100 );
}
void application_task ( void )
{
#ifdef DEMO_APP_RECEIVER
ata6571_process();
if ( app_buf_len > 0 )
{
Delay_ms( 100 );
ata6571_process();
log_printf( &logger, "%s", app_buf );
log_printf( &logger, "-------------------------------------\r\n" );
ata6571_clear_app_buf( );
}
#endif
#ifdef DEMO_APP_TRANSMITTER
ata6571_generic_write( &ata6571, TEXT_TO_SEND, strlen( TEXT_TO_SEND ) );
log_printf( &logger, "---- The message has been sent ----\r\n" );
Delay_ms( 2000 );
#endif
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
static void ata6571_clear_app_buf ( void )
{
memset( app_buf, 0, app_buf_len );
app_buf_len = 0;
app_buf_cnt = 0;
}
static err_t ata6571_process ( void )
{
int32_t rx_size;
char rx_buff[ PROCESS_BUFFER_SIZE ] = { 0 };
rx_size = ata6571_generic_read( &ata6571, rx_buff, PROCESS_BUFFER_SIZE );
if ( rx_size > 0 )
{
int32_t buf_cnt = 0;
if ( app_buf_len + rx_size >= PROCESS_BUFFER_SIZE )
{
ata6571_clear_app_buf( );
return ATA6571_ERROR;
}
else
{
buf_cnt = app_buf_len;
app_buf_len += rx_size;
}
for ( int32_t rx_cnt = 0; rx_cnt < rx_size; rx_cnt++ )
{
if ( rx_buff[ rx_cnt ] != 0 )
{
app_buf[ ( buf_cnt + rx_cnt ) ] = rx_buff[ rx_cnt ];
}
else
{
app_buf_len--;
buf_cnt--;
}
}
return ATA6571_OK;
}
return ATA6571_ERROR;
}
// ------------------------------------------------------------------------ END