Click the “blue” above to follow us! Point: 1. The serial port and COM port refer to the physical interface form (hardware). TTL, RS-232, and RS-485 refer to the level standards (electrical signals). 2. When connecting devices, generally only GND, RX, and TX are connected. Vcc or +3.3V power lines are not connected to avoid … Read more
1. The serial port and COM port refer to the physical interface form (hardware), while TTL, RS-232, and RS-485 refer to the level standards (electrical signals). 2. When connecting devices, generally only GND, RX, and TX are connected. The Vcc or +3.3V power line is not connected to avoid conflicts with the power supply of … Read more
The Lenovo Leez P710 has just been released, and many scenarios still need to be explored by users. Recently, I thought about how to utilize the performance of the RK3399 to create a gaming console. So, I got started right away. First, I needed to prepare a Leez P710 (obviously), an HDMI cable, a monitor, … Read more
Steps for debugging using virtual serial ports:1 First, you need a virtual serial port software, Configure Virtual Serial Port Driver.2 Next, you need virtual serial port debugging software, you can use a free serial port debugging assistant + TCP/UDP software.3 Install the virtual serial port software first, and the interface after installation looks like this:4 … Read more
What are the differences between serial ports, COM ports, TTL, RS-232, and RS-485? We often encounter these in our projects, so let’s summarize them. 1. Serial ports and COM ports refer to the physical interface form (hardware). TTL, RS-232, and RS-485 refer to the level standards (electrical signals). 2. When connecting devices, generally only GND, … Read more
1. ULINK2 Emulator ULINK2 is the latest emulator from ARM designed for use with RealView MDK. It is an upgraded version of the ULINK emulator. ULINK2 not only has all the features of the ULINK emulator but also adds support for Serial Wire Debug (SWD), return clock support, and real-time agents. Development engineers can easily … Read more
Since programming TI’s DSP is slightly more complex than that of microcontrollers, many customers are not very familiar with the programming process. Therefore, we will provide a simple introduction to the programming methods. DSP generally adopts an online programming method, which means there is a connected JTGA interface on the circuit board. The programming tool … Read more
The origin of this project stems from a discussion about the RP2040 MCU (the first microcontroller from Raspberry Pi). At the time, we were discussing how to build a simple desktop/graphical user interface for the RP2040 MCU, and I casually mentioned, “Why not just run some old operating systems?” After saying that, I suddenly thought … Read more
Debugging chips relies heavily on the JTAG interface. Downloading and debugging programs must be accomplished through the JTAG interface. Today, I learned some basic principles and working processes of the JTAG interface, and I will summarize them briefly. The JTAG interface is an international standard testing protocol, originally initiated by several electronic device manufacturers who … Read more
Follow + star our WeChat public account to not miss exciting content Author | strongerHuang WeChat Public Account | strongerHuang In the past, computers commonly came with a UART serial port. However, modern computers generally do not have serial ports configured. To use serial port functionality, you typically need a USB to serial hardware module. … Read more