This article is an excellent piece from the KX forum. KX Forum Author ID: KerryS Dobby has two main functions: one is inline hooking, and the other is instruction instrumentation. The principles of both are similar, but this article mainly introduces instruction instrumentation. Instruction instrumentation refers to inserting instrumentation into any instruction (either at the … Read more
It must be said that Keil seems to be the most widely used IDE among domestic users. After being acquired by ARM, the introduction of the Keil MDK development environment with ARMCC and other compilers has been well received by many ARM development engineers. The large user base (many of whom have transitioned from the … Read more
By default, Keil/MDK can generate ***.axf and ***.hex files. To generate a ***.bin file, you first need to know what tool is used for this process. The fromelf.exe conversion tool is part of the development suite provided by ARM, and it is already located in the installation folder when you install MDK. This tool is … Read more
After working with microcontrollers, I transitioned to ARM and initially used the ADS 1.2 compiler. I used it for a while because the old program of the project I took over was compiled with ADS, and most of the department was using it. When learning about microcontrollers, I used the Keil C51 compiler, and the … Read more
Interoperability Between C Language and ARM Assembly Language 1. Accessing C Language Global Variables from Assembly Global variables can only be accessed indirectly through their addresses. To access global variables in C, you must first introduce the global variable using the extern directive, and then load its address into a register. For unsigned char type, … Read more
Abstract: Considering the characteristics and requirements of smart homes, this study adopts a combination of wireless ZigBee sensor networks and power line communication technology. This approach not only realizes the low power consumption, low cost, and flexible networking capabilities of ZigBee, but also utilizes existing household power lines as communication channels through power line carrier … Read more
RISC-V is an instruction set architecture (ISA) for microprocessors, and people’s opinions about it are polarized. This is especially true given the apparent competition between the ARM and RISC-V camps. This makes sense. RISC-V and ARM represent fundamentally different philosophies on how to design RISC chips. RISC-V has a long-term view that emphasizes simplicity, avoiding … Read more
Previously, we discussed the on-chip interconnect bus, but having just the bus is not enough; we also need on-chip bus protocol support. Only with the protocol can we operate the registers accurately. When it comes to on-chip bus protocols, there are many, such as the AMBA bus used by ARM, the Wishbone bus by Silicore, … Read more
1 I2C Bus The programming related to I2C mainly involves two situations: ARM chips with dedicated controllers and microcontroller chips without controllers. For ARM chips with controllers, operations are performed based on the data manual by setting the corresponding registers (control registers, status registers, etc.); however, for microcontroller chips without controllers, I2C protocol needs to … Read more
Recently, Arm officially released the TCS23 (Total Compute Solutions 23) platform along with corresponding IP products, including the Cortex-X4, A720, A520 CPUs based on the Armv9 architecture, and the latest Immortalis-G720, which is a new IP based on Arm’s fifth-generation GPU microarchitecture, along with an updated DSU. Undoubtedly, these IPs will be the focus of … Read more