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ID ² And hardware master driver transplantation The next part implements ID ² SE chip transplantation Transplant preparation SE security chip: FM1230 Hardware circuit: main control - iic - FM1230 The original factory provides the driving example under IIC under STM32 Transplant the IIC driver according to its own master control. ...

Misplaced Experience: ESP8266 NodeMCU Preface after Previous Project And later learning, I feel I can start a new project Liao. So, I suddenly have an idea: beside me, there is not only an ESP8266-NodeMCU (a board that can be connected to the Internet), but also a DHT11 sensor to see if the data can go to the cloud. This is also an imp ...

  catalogue Article catalog preface 1, What is the upper computer 2, Anonymous four axis host computer 1. Function 2. Some simple protocols of software 3, Relevant receiving and sending codes 1, Receive data 2. Send data summary preface For MCU developers, debugging tools are essential. Sometimes they need to display wavefor ...

Note: the model of this single chip microcomputer is STC15F2K60S2 principle As shown in the figure, light emitting diodes L1-L8 are in common positive connection, and VCC is the positive pole of power supply, with high level. It is known that the LED is on in the forward direction and off in the reverse direction. In order to make the diode l ...

ACL Access Control List Functions: 1. Access Restrictions - Match traffic on router traffic-in or-out interfaces and then restrict them 2. Define traffic of interest Introduction to ACL: 1. From top to bottom, match one by one, the previous match is executed as above, not the next 2. Calls to the ACL list are divided into in (matching the ...

        First, learn about the GPIO distribution of raspberry pie. You can get the GPIO distribution by entering gpio readall.             The error of Oops - unable to determine board type... model: 17 may be due to the version of wiringPi, Enter the following command to upgrade the wiringPi v ...

1, What is a drive frame 1. Who wrote the driver (1) Drive development engineer (2) Kernel maintainer 2. Driver programming collaboration requirements (1) The interface should be standardized. Don't make a mess. There are several sets of interfaces (2) Minimize the difficulty of driving developers 3. What is the driver framework (1) The ...

preface ADC is widely used in the project. ADC and DAC are digital / analog converters. But I don't use much DAC, because I usually use sensors to detect external analog quantities, and then convert them into digital quantities for data processing and application, such as temperature and humidity sensors, inductors, black-and-white tra ...