It has been a while since I last updated. Yesterday, I saw that the official SDK for running FreeRTOS on the core was released. Coincidentally, today is the weekend, so I did a git pull for the latest code and tried it out. 1. How to Add RTOS Task Code? First, I took a quick … Read more
Division and remainder of signed integers – Chen Shuo. Recently, while researching the conversion from integers to strings, I read Matthew Wilson’s series of articles titled Efficient Integer to String Conversions. (Search conversions at http://synesis.com.au/publications.html.) His cleverness lies in using a symmetric digits array to handle the boundary conditions for negative number conversions (the range … Read more
The execution of a C program involves multiple steps, from the initial source code to the final execution process. Let’s understand the execution flow of a C program through a simple example: File: simple.c #include <stdio.h> int main(){ printf("Hello C Language"); return 0;} 👇Click to receive👇 👉C Language Knowledge Resource Collection Execution Flow Let’s understand … Read more
“ Keywords: STM32CubeIDE, Heap, __sbrk Problem Description Recently, a client requested to specify the heap address in STM32CubeIDE to a dedicated RAM. Problem Analysis The default stack configuration diagram in the project generated by STM32CubeIDE is shown in Figure 1: Solution The project generated by STM32CubeIDE will automatically create a file named sysmem.c. In this … Read more
This article is lengthy, estimated reading time: 10 minutes. # Author: Roff Segger, Technical Testing, Translation, and Writing at Microtech We are testing using SEGGER’s Embedded Studio development environment: on a Cortex-M microcontroller, how much Flash memory is needed to complete a blinking LED application? Objective: · Create a blinking application using less than 100 … Read more
1. Limit Filtering Method 1. Method: Determine the maximum allowable deviation between two samples based on experience (set as A) When a new value is detected, judge: a. If the difference between this value and the last value <= A, then this value is valid b. If the difference between this value and the last … Read more
Constant Pointers In C language, a constant pointer refers to a pointer whose address cannot be changed, meaning the address will remain unchanged. Therefore, we can say that if a constant pointer points to a certain variable, it cannot point to other variables. Syntax of Constant Pointers <pointer type> * const <pointer name>; The declaration … Read more
So far, we have learned that pointers should point to addresses of the same type specified in their declaration. For example, if we declare an int pointer, then this int pointer cannot point to a float variable or other types of variables; it can only point to int type variables. To solve this problem, we … Read more
After the large-scale chip shortage has come to a close, friends in the chip market have been somewhat affected by the wave of order cancellations, with the biggest change being less overtime. Previously, when there were orders, they would work overtime for testing (to verify the authenticity of chips), but now without orders, they are … Read more
Are you still struggling to choose a programming language? This article uses a table and simple analogies to help you quickly understand the pros and cons of the five major mainstream languages, along with practical project recommendations. 1. Summary in One Sentence: Choosing a Language is Like Choosing a Kitchen Knife • C: Like a … Read more
