In this tutorial, we will discuss TM4C123 Timer interrupt programming ARM Cortex M4 microcontrollers. Firstly, we will discuss applications of timer interrupt with one example. We will use a TM4C123 Tiva C launchpad for demonstration purposes. It comes with a TM4C123GH6PM microcontroller. The general purpose timer module TimerA module will be configured and initialized to … Read more
Interrupt processing in ARM Cortex-M microcontrollers is a critical aspect of how these devices manage real-time tasks efficiently. In this tutorial, we will discuss the sequences of steps that are performed by ARM Cortex M processor during interrupt processing. In other words, how ARM Cortex-M microcontroller handles interrupt or exceptions. Recommended Components The following components … Read more
In this tutorial, we will discuss how to use GPIO interrupts which are also known as external interrupts of ARM Cortex M4 based TM4C123 microcontroller using the Tiva C launchpad. We will learn to configure GPIO interrupts as an edge triggered such as positive or negative edge or level triggered such as active high or … Read more
In this tutorial, we will learn how to use the analog to digital module (ADC) of TM4C123GH6PM Microcontroller using TM4C123G Tiva C Launchpad. Firstly, we will learn to configure ADC modules and sample sequencer of TM4C123 using configuration registers. For demonstration purposes, we will measure analog voltage by using one of the analog input pins … Read more
In this tutorial, we will learn to interface MPU6050 gyroscope and accelerometer sensor with TM4C123G Tiva C microcontroller. MPU6050 sensor module has 6-axis motion tracking sensors integrated inside the single-chip such as 3-axis measurement for gyroscope and 3-axis measurement for acceleration. Hence, we can use this sensor to measure acceleration, velocity, displacement, and many other … Read more
In this tutorial, we will learn to use I2C communication modules of TM4C123G microcontrollers. The TM4C123GH6PM microcontroller which is integrated on the Tiva Launchpad board has four I2C channels inside the chip such as 12C0, 12C1, 12C2, and I2C3. Firstly, We will use a bare-metal embedded approach to configure I2C modules using peripheral registers. Keil … Read more
In the last tutorial, we learned to use UART communication modules of TM4C123G Tiva C Launchpad. We have seen a demo to transmit and receive data between the computer and TM4C123G Tiva C on UART5 port using a busy-wait or polling method. In this tutorial, we will see how to make the UART receiver port … Read more
Every microcontroller out there contains a processor which is responsible for performing all the actions on that microcontroller. Each processor is designed, based on a certain instruction set Architecture architecture. That architecture can be based on any type, for instance, ARM. Being our topic of discussion today let’s explore ARM Cortex-M4 microcontrollers architecture in detail. … Read more
In this tutorial, we will learn to use the UART communication module of TM4C123GH6PM microcontroller by using TM4C123G Tiva LaunchPad. This tutorial will help you understand how TM4C123G MCUs communicate with external devices or with each other over UART based serial communication protocol. First, we will discuss the UART module of TM4C123GH6PM microcontroller and its … Read more
NVIC is an on-chip controller that provides fast and low latency response to interrupt-driven events in ARM Cortex-M MCUs. In this tutorial, We will explain the role of the nested vectored interrupt controller (NVIC) in interrupt handling requests of ARM Cortex-M microcontrollers. At the start, we will explain the exception and interrupt concepts that are … Read more