Master voltage regulation with MIC24045 and PIC32MZ2048EFH100
Power-on-the-Go
Published Jul 29, 2023
Click board™
MIC24045 click
Dev. board
Flip&Click PIC32MZ
Compiler
NECTO Studio
MCU
PIC32MZ2048EFH100
Perfect portable power solution that transforms voltage levels with precision to ensure optimal performance for a wide range of electronic devices
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Hardware Overview
How does it work?
MIC24045 Click is based on the MIC24045, an I2C-programmable, high-efficiency, wide input range, 5A synchronous step-down regulator from Microchip. This Click board™ is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over the I2C interface with additional functionality provided by the following pins on the mikroBUS™ line: RST, INT. The MIC24045 is a digitally programmable, 5A valley current-mode controlled regulator
featuring an input voltage range from 4.5V to 19V. The MIC24045 is ideally suited for multiple voltage rail application environments, typically found in computing and telecommunication systems. The MIC24045 has thermal shutdown protection that prevents operation at excessive temperatures. The MIC24045 features a Thermal Warning flag readable through the I2C interface (register polling is needed). The Thermal Warning flag signals the approach of the thermal shutdown so that
appropriate system-level countermeasures can be undertaken. This Click board™ is designed to lower the voltage on the input from 4.5V-19V to 0.64V-5.25V. The same voltage is used for powering the MCP24045 IC (TB1 and TB2 connectors). The voltage on the mikroBUS™ I2C pin can be either 3.3V or 5V, depending on the jumper position. The selected mikroBUS™ power supply is used only for the pull-ups on I2C lines.
Features overview
Development board
Flip&Click PIC32MZ is a compact development board designed as a complete solution that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It comes with an onboard 32-bit PIC32MZ microcontroller, the PIC32MZ2048EFH100 from Microchip, four mikroBUS™ sockets for Click board™ connectivity, two USB connectors, LED indicators, buttons, debugger/programmer connectors, and two headers compatible with Arduino-UNO pinout. Thanks to innovative manufacturing technology,
it allows you to build gadgets with unique functionalities and features quickly. Each part of the Flip&Click PIC32MZ development kit contains the components necessary for the most efficient operation of the same board. In addition, there is the possibility of choosing the Flip&Click PIC32MZ programming method, using the chipKIT bootloader (Arduino-style development environment) or our USB HID bootloader using mikroC, mikroBasic, and mikroPascal for PIC32. This kit includes a clean and regulated power supply block through the USB Type-C (USB-C) connector. All communication
methods that mikroBUS™ itself supports are on this board, including the well-established mikroBUS™ socket, user-configurable buttons, and LED indicators. Flip&Click PIC32MZ development kit allows you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping 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
Architecture
PIC32
MCU Memory (KB)
2048
Silicon Vendor
Microchip
Pin count
100
RAM (Bytes)
524288
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Flip&Click PIC32MZ as your development board.
Track your results in real time
Application Output
1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.
2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.
3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.
Software Support
Library Description
This library contains API for MIC24045 Click driver.
Key functions:
mic24045_get_vout- Get voltagemic24045_set_vout_decimal- Set voltage decimalmic24045_get_status- Get status function
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
* \brief Mic24045 Click example
*
* # Description
* This example demonstrates the use of MIC24045 Click board.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver and enables the voltage output.
*
* ## Application Task
* Changes the voltage output every 2 seconds and displays the current set value
* on the USB UART.
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "mic24045.h"
// ------------------------------------------------------------------ VARIABLES
static mic24045_t mic24045;
static log_t logger;
static float current_voltage;
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
mic24045_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.
mic24045_cfg_setup( &cfg );
MIC24045_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mic24045_init( &mic24045, &cfg );
mic24045_enable( &mic24045 );
log_printf( &logger, " Output enabled!\r\n" );
Delay_ms ( 100 );
}
void application_task ( void )
{
for ( uint16_t cnt = MIC24045_MIN_VOUT_DEC; cnt <= MIC24045_MAX_VOUT_DEC; cnt += 15 )
{
mic24045_set_vout_decimal( &mic24045, cnt );
Delay_ms ( 500 );
current_voltage = mic24045_get_vout( &mic24045 );
log_printf( &logger, " VOUT: ~%.3f V\r\n", current_voltage );
log_printf( &logger, "------------------\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 500 );
}
}
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
