Recently, my supervisor asked me to modify the program for the AT89C52. The code written by the previous developer is truly unworthy of praise. Have you ever seen a program with over 10,000 lines in a single .c file? This is one of them. It has an extraordinarily large while loop and four layers of … Read more
An error occurred: FATAL ERROR L210: I/O ERROR ON INPUT FILE: EXCEPTION 0021H: PATH OR FILE NOT FOUND. Later I found out that it was due to insufficient MCU memory. After some investigation, I discovered that my KEIL was not cracked, which prevented compilation of programs larger than 2K. After cracking KEIL 2 again, loading … Read more
Today I upgraded Keil MDK to V4.54 and used J-Link to download the program. I found that the J-Link driver bundled with MDK has been updated to version V4.5. Then MDK prompted that there is new firmware for J-Link. I had encountered similar prompts before, so I chose to upgrade the J-Link firmware. After the … Read more
In the debugging state of Keil C, how can we observe the operating status of various internal and external peripherals? How can we modify their settings? Answer: In debugging state, click on different peripheral options under the Peripherals menu to display or hide the corresponding observation windows. For example, to display the Timer 0 window, … Read more
When you enter the debugging interface, you will see the following image. The cursor has already run to the entry point of the main function, and the debugging toolbar is now displayed in front of you. Tools/Materials Ulink2 emulator Development board and Keil software Methods/Steps First, let’s introduce the relevant menus. The first one on … Read more
1) Exception Hierarchy Python has many built-in exceptions that we may encounter from time to time, such as ZeroDivisionError, KeyError, ValueError, TypeError, and so on. Each exception is part of an exception hierarchy — this means that most exceptions inherit from the same parent class Exception in some way. We can see this by printing … Read more
The printf function is indispensable during microcontroller debugging, allowing developers to intuitively and conveniently obtain the current running status of the program. However, in chips like STM32, to achieve printf functionality, UART must be utilized. Is there a way to implement printing functionality solely with JLink? The answer is yes. ARM has adopted a new … Read more
Outputting debugging information is an essential debugging tool in embedded development. One characteristic of embedded development is that often there is no operating system or file system, making conventional methods of printing logs to files generally unsuitable. The most common method is to output UART logs through a serial port. For example, with the 51 … Read more
This article describes the main debugging methods for the Nordic nRF5 SDK to help everyone quickly locate and solve problems. Generally, you can debug your code using various methods such as logging, IDE debug mode, the app_error_check function provided by the SDK, and command line methods. 1. Debugging via Logging The nRF5 SDK supports two … Read more
Environment Operating System: Win7, 64bit IDE: CCS V3.3 Debugger: SEED XDS510PLUS DSP Model: TMS320C6713GDP(DSP6713) Check Steps Try pressing the reset button and then click Connect. Please check if the power supply is normal (core voltage should be 1.2V, IO port voltage should be stable at 3.3V). Use an oscilloscope to check the ripple of the … Read more