Hello, everyone, I am Programmer MM. This article is approximately 2400 words. Recently, I finished reading Chapter 6 of ‘Linux Device Drivers’, and I have organized my notes from this chapter. In this chapter, the development of device drivers has progressed from simple data transfer to an advanced stage with complete synchronization and control capabilities. … Read more
The most frustrating aspect of smart homes is when devices suddenly disconnect or commands are delayed. The secret behind this lies in the communication chip algorithms—firmware in the chip acts like the brain of the device. If the algorithms are well-written, the devices operate intelligently and stably; if poorly written, the devices can create chaos … Read more
Due to the similarities between embedded software and firmware, it is not surprising that confusion arises regarding the question of embedded software and firmware, especially regarding “Are embedded software and firmware the same?” and “Is firmware embedded software?”. In previous content, we discussed the differences between firmware and hardware. In this article, we will discuss … Read more
1 Introduction PLCs have many instructions, but in actual projects, you may only use about 60% of them, or even less. The key to learning PLCs is not just to learn these instructions, but to understand how to use them to design control programs and debug projects. Many beginners learn a lot of instructions when … Read more