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
Click the above Computer Enthusiasts to follow us When it comes to ARM, everyone should be very familiar with it. It does not produce chips; it only provides an idea for chip design, including native core IP and the ARMv instruction set. Among them, the core IP includes the well-known Cortex-A78 and Cortex-X1. Chip manufacturers … Read more
1. What do T, D, M, and I stand for in ARM7TDMI? Answer: These four letters represent a characteristic of ARM: T: High-density 16-bit Thumb instruction set extension D: Supports on-chip debugging M: 64-bit multiplication instruction I: Includes embedded ICE hardware simulation module 2. Quick Knowledge Summary: ARM7 adopts a 3-stage pipeline, while ARM9 adopts … Read more