Data Structures – Page 4 – EmbeddedExpertIO

Working with STM32 and PID Controller Part 2: Code implementation

Posted May 25, 2022 by Husamuldeen

In the previous guide (here), the PID controller has been introduced and discussed. This part, we shall use the equation introduced in part 1 to implement the code. In this guide, we shall cover the following: Header file implementation. Source...

Working with STM32F7 and ADC part 3: Multi channel Continuous Conversion with DMA

Posted May 18, 2022 by Husamuldeen

In the previous guide (here), we took a look at single channel continuous conversion interrupt driven ADC configuration. In this guide, we shall see how to configure the ADC to work in multiple channel with DMA. In this guide, we shall cover the...

Working with STM32 and UART part 6: IDLE Line interrupt with DMA

Posted May 6, 2022 by Husamuldeen

In pervious guides(here), we took look how to receive 5 characters from DMA and echo back the sent characters. However, the limitation is to need the number of received character in advanced which will limit the capability of the firmware...

Working with STM32 and Sensors: BMP180 pressure and temperature sensor

Posted March 14, 2022 by Husamuldeen

In this guide, we shall use STM32 to acquire data from BMP180 temperature and pressure sensor and display the results on OLED display. In this guide, we shall cover the following: BMP180 Sensor. Connection with STM32. Code. Results. 1.1 BMP180...

STM32 and digital filters: Finite Impulse Response Filter (FIR)

Posted February 10, 2022 by Husamuldeen

In the previous guide (here), we took a look at the IIR filter and how to implement it on STM32 and filter the output from HMC5883L. In this guide, we shall cover the Finite Impulse Response Filter. We shall cover the following: Overview of FIR...

STM32 and digital filters: Infinite Impulse Response Filter IIR Filter

Posted January 27, 2022 by Husamuldeen

In this guide, we shall see how to implement the digital filters, specifically IIR filter. In this guide, we shall cover the following: What is IIR filter Software implementation Deploying the algorithm on STM32 Code Demo 1.1 What is Impulse...

Working with DMA and STM32: Memory to Memory Mode

Posted November 8, 2021 by Husamuldeen

In pervious multiple guides, we took look at ADC with DMA (here), USART with DMA (here) and SPI-TX with DMA (here). In this guide, we shall use DMA to transfer data from one location to another using DMA. In this guide, we will cover the...

Understanding Pointers

Posted September 3, 2020 by ninsaw

Every variable in a firmware has a name and a value associated with it. When a variable is declared, a specific block of memory within the microcontroller is allocated to hold the value of that variable. The size of the allocated block depends on...