Follow,Star public account, don’t miss out on exciting content Source: Segger Edited by: strongerHuang On January 25, 1994, the Clementine spacecraft was launched, a satellite by NASA used to test sensors and spacecraft components under long-term exposure to the space environment. Due to the lack of several watchdog codes, its mission was lost on May … Read more
Follow+Star Public Account Number, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | strongerHuang Many embedded developers start from bare-metal programming and then move to RTOS. This article shares the basic principles of RTOS scheduling. During the job-hunting season in March and April, here are some embedded-related positions to recommend: It’s normal … Read more
Follow andstar the public account so as not to miss wonderful content Editor: Huang Source: McTai Technology Readers have been asking questions about RTOS, such as:Should I learn RTOS now?What are the benefits of learning RTOS?Should my project run RTOS? ······ Other questions about RTOS essentially stem from insufficient understanding of RTOS and lack of … Read more
Follow+Star Public Number, don’t miss exciting content Author | strongerHuang WeChat Public Account | Embedded Column I’ve often seen some friends asking in the group chat: **Where to download materials,** documentation, and **source code?** Where to find materials, documentation, and source code? Many beginners like to search for materials, documentation, and source code on Baidu, … Read more
Follow+Star Public Number, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | strongerHuang Most operating systems on the market have a type of API function interface: HOOK functions (also known as hook functions). HOOK functions can be found in desktop operating systems like Windows, Linux, as well as real-time operating systems like … Read more
Follow+Star Public Account Number, don’t miss wonderful content Author | strongerHuang WeChat Official Account | strongerHuang You may often see multi-core CPUs in mobile phones and computers, but multi-core microcontrollers are relatively rare. With the increase in demand and the advancement of technology, microcontrollers are no longer limited to single-core, thus, in recent years dual-core … Read more
Follow+Star Public Account Number, don’t miss the wonderful content Source | MultiMCU EDU Typically, the RTOS system tick is 1KHz, of course, there are cases of 100Hz or 10KHz. At 1KHz, the shortest system delay is 1ms, and in real-time control, there are situations that require microsecond (us) level delays. What should we do? There … Read more
Follow+Star PublicAccount, don’t miss out on exciting content Author | strongerHuang WeChat Official Account | strongerHuang I came across an interesting question: why do RTOS tasks not use global variables for inter-task communication when bare-metal code uses global variables? Those who have a deep understanding of RTOS principles, or have read RTOS source code should … Read more
This issue: A group friend asked a question in the group: In FreeRTOS, a high-priority task changed the value of a global variable, while a low-priority task was waiting in a loop for the value to change; why did the low-priority task not exit the loop and continue execution after the high-priority task changed the … Read more
Author | strongerHuang WeChat Official Account | Embedded Column In RTOS multi-task programming, it is common for multiple tasks to access the same hardware (such as UART, I2C, etc.). If not handled properly, it can lead to a “chaotic” situation. There are many methods to handle the “chaotic” situation. Below, based on FreeRTOS, I will … Read more