PIC32MX320F128H Microcontroller

Overview

The PIC32MX320F128H is part of Microchip’s PIC32MX series, featuring a 32-bit MIPS-based architecture. With a robust set of peripherals and high processing power, it is designed for a wide range of applications, including embedded control, communication systems, and consumer electronics. Its rich feature set makes it a top choice for developers looking for performance and versatility in a microcontroller.

Core Features

The PIC32MX320F128H offers the following key features:

• Processor: 32-bit MIPS M4K core, running at up to 80 MHz.
• Memory: 128 KB Flash and 32 KB SRAM for ample code and data storage.
• Peripheral Support: Built-in UART, SPI, I2C, USB, and CAN for versatile communication.
• Analog Features: 10-bit ADC with multiple input channels for analog signal processing.
• Timers: Multiple 16-bit and 32-bit timers for precise timing and control.
• I/O Flexibility: Up to 53 GPIO pins for interfacing with external devices.
• Operating Voltage: 2.3V to 3.6V, suitable for low-power applications.
• Power-Saving Modes: Sleep and idle modes for energy-efficient operation.

These features make the PIC32MX320F128H a versatile microcontroller for both simple and complex embedded projects.

Applications

The PIC32MX320F128H is suitable for a variety of applications, including:

• Embedded Control Systems: Used in industrial automation, robotics, and motor control.
• Communication Devices: Ideal for systems requiring UART, USB, I2C, or CAN protocols.
• Consumer Electronics: Commonly employed in audio processing and smart devices.
• Data Logging: Excellent for applications involving ADCs and data storage.
• Educational Projects: A powerful yet accessible microcontroller for learning and experimentation.

Development Tools

Microchip provides a comprehensive ecosystem for developing with the PIC32MX320F128H:

• MPLAB X IDE: A feature-rich development environment for writing, testing, and debugging your code.
• XC32 Compiler: A C compiler optimized for 32-bit PIC devices.
• PIC32 Starter Kit: A development kit tailored for PIC32 microcontrollers.
• MPLAB Code Configurator: Simplifies peripheral initialization with a graphical interface.

Example: Basic Digital Output

This example demonstrates how to configure and use a GPIO pin on the PIC32MX320F128H to toggle an LED.

Requirements

• PIC32MX320F128H microcontroller or compatible development board
• MPLAB X IDE with XC32 compiler
• LED and resistor for basic GPIO setup

Steps

1. Set up your MPLAB X IDE project and configure the XC32 compiler for the PIC32MX320F128H.
2. Write the following code in your main.c file:

#include 

#define LED_PIN LATBbits.LATB0  // LED connected to PORTB pin 0
#define LED_TRIS TRISBbits.TRISB0  // Set LED pin direction

void setup() {
    LED_TRIS = 0;  // Configure LED pin as output
}

int main() {
    setup();
    while (1) {
        LED_PIN = 1;  // Turn LED on
        __delay_ms(500);  // Delay for 500ms
        LED_PIN = 0;  // Turn LED off
        __delay_ms(500);  // Delay for 500ms
    }
    return 0;
}
        

Explanation

The code initializes RB0 as an output pin and toggles the LED state every 500 milliseconds using simple delay loops. This example showcases the use of GPIO for basic control tasks on the PIC32MX320F128H.