Deliver measurements of current, voltage, power, and temperature with the TSC1641 and MCU CARD for Tiva TM4C129ENCZAD

Digital power monitor for alerting undesirable operating conditions

Current 12 Click with Fusion for Tiva v8

Published Jun 06, 2024

Click board™

Current 12 Click

Dev. board

Fusion for Tiva v8

Compiler

NECTO Studio

MCU

TM4C129ENCZAD

Achieve precise regulation and monitoring of voltage, current, and power ensuring stable and reliable power delivery

Hardware Overview

How does it work?

Current 12 Click is based on the TSC1641, a 60V 16-bit high-precision power monitor with an I2C interface from STMicroelectronics. The TSC1641 is a high-precision analog front-end (AFE) that monitors current, voltage, power, and temperature. It measures current through a shunt resistor and load voltage from 0V up to 60V in a synchronized manner. The current measurement can be high-side, low-side, and bidirectional. The device integrates a high-precision 16-bit resolution dual-channel sigma-delta ADC with a programmable

conversion time ranging from 128µs to 32.7ms. This board makes it ideal for applications such as industrial battery packs, power inverters, DC power supplies, data centers, telecom equipment, power tools, and more. Current 12 Click uses a standard 2-wire I2C communication protocol to enable the host MCU to control the TSC1641. The I2C interface supports clock frequencies of up to 1MHz, with the I2C address selectable via the ADDR SEL jumpers. The alert interrupt ALR pin allows the assertion of several alerts regarding voltage,

current, power, and temperature, with thresholds that can be set for each parameter in a specific register. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

Current 12 Click hardware overview image

Features overview

Development board

Fusion for TIVA v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports a wide range of microcontrollers, such as different 32-bit ARM® Cortex®-M based MCUs from Texas Instruments, regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over a WiFi network. The development board is well organized and designed so that the end-user has all the necessary elements, such as switches, buttons, indicators, connectors, and others, in one place. Thanks to innovative manufacturing technology, Fusion for TIVA v8 provides a fluid and immersive working experience, allowing access

anywhere and under any circumstances at any time. Each part of the Fusion for TIVA v8 development board contains the components necessary for the most efficient operation of the same board. An advanced integrated CODEGRIP programmer/debugger module offers many valuable programming/debugging options, including support for JTAG, SWD, and SWO Trace (Single Wire Output)), and seamless integration with the Mikroe software environment. Besides, it also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector.

Communication options such as USB-UART, USB HOST/DEVICE, CAN (on the MCU card, if supported), and Ethernet is also included. In addition, it also has the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options for the TFT board line of products and character-based LCD. Fusion for TIVA v8 is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.

Microcontroller Overview

MCU Card / MCU

Type

8th Generation

Architecture

ARM Cortex-M4

MCU Memory (KB)

1024

Silicon Vendor

Texas Instruments

Pin count

212

RAM (Bytes)

262144

Used MCU Pins

mikroBUS™ mapper

RST

ID COMM

PE7

SCK

MISO

MOSI

Power Supply

3.3V

Ground

GND

PWM

Alert Interrupt

PB4

INT

I2C Clock

PB2

SCL

I2C Data

PB3

SDA

Ground

GND

Take a closer look

Click board™ Schematic

Step by step

Project assembly

Fusion for PIC v8 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Fusion for Tiva v8 as your development board.

NECTO Output Selection Step Image hardware assembly

In the advanced settings, pay special attention to the Redirect standard output field. By default, it is set to Application output as the method of displaying final results. To show results via a UART terminal, select the “UART” option in that field and click the “SAVE” button. You will be returned to the Compiler field, and now you can move on to the next step by pressing the “NEXT” button.

GNSS2 Click front image hardware assembly

SiBRAIN for PIC32MZ1024EFK144 front image hardware assembly

GNSS2 Click complete accessories setup image hardware assembly

Board mapper by product7 hardware assembly

NECTO Compiler Selection Step Image hardware assembly

Software Support

Library Description

This library contains API for Current 12 Click driver.

Key functions:

current12_get_load_voltage - This function reads the load voltage measurement values [V].
current12_get_dc_power - This function reads the DC power measurement values [W].
current12_get_current - This function reads the current measurement values [mA].

Open Source

Code example

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

/*!
 * @file main.c
 * @brief Current 12 Click example
 *
 * # Description
 * This example demonstrates the use of the Current 12 Click board 
 * by reading and displaying the input current measurements.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * The initialization of the I2C module and log UART.
 * After driver initialization, the app sets the default configuration.
 *
 * ## Application Task
 * The demo application reads and displays the results 
 * of the input current, voltage, and power measurements.
 * Results are being sent to the UART Terminal, where you can track their changes.
 *
 * @author Nenad Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "current12.h"

static current12_t current12;
static log_t logger;

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    current12_cfg_t current12_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.
    current12_cfg_setup( &current12_cfg );
    CURRENT12_MAP_MIKROBUS( current12_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == current12_init( &current12, &current12_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( CURRENT12_ERROR == current12_default_cfg ( &current12 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
    log_printf( &logger, "_____________________\r\n " );
    Delay_ms ( 100 );
}

void application_task ( void ) 
{
    float meas_data = 0;
    if ( CURRENT12_OK == current12_get_shunt_voltage( &current12, &meas_data ) )
    {
        log_printf( &logger, " Shunt Voltage: %.2f [mV]\r\n ", meas_data );
        Delay_ms ( 100 );
    }

    if ( CURRENT12_OK == current12_get_load_voltage( &current12, &meas_data ) )
    {
        log_printf( &logger, " Load Voltage: %.2f [V]\r\n ", meas_data );
        Delay_ms ( 100 );
    }

    if ( CURRENT12_OK == current12_get_dc_power( &current12, &meas_data ) )
    {
        log_printf( &logger, " DC Power: %.2f [W]\r\n ", meas_data );
        Delay_ms ( 100 );
    }

    if ( CURRENT12_OK == current12_get_current( &current12, &meas_data ) )
    {
        log_printf( &logger, " Current: %.2f [mA]\r\n", meas_data );
        Delay_ms ( 100 );
    }
    log_printf( &logger, "_____________________\r\n " );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

// ------------------------------------------------------------------------ END