The computer turned black after connecting to the single-chip computer.
There may be the following reasons and solutions for the black screen after the computer is connected to the single-chip computer: 1. ** USB-to-serial driver problem **: If you use the USB-to-serial cable to connect the computer and the single-chip computer, the USB to serial driver may have a problem and cause a black screen. It is recommended to try changing the driver. The USB connection must be disconnected during operation. 2. ** Driver conflicts **: If you are using the Windows system, sometimes a new hardware driver may cause conflicts. You can go to the device manager to check if there are any devices with yellow exclamation marks and try to update the relevant drivers. 3. ** Too much current **: The temporary crash caused by the excessive current during the single-chip computer burning process may also cause the computer to turn black. Before downloading, check if the power supply is stable or try to reduce the download speed. 4. ** Connection unstable **: The USB to serial cable connection is unstable, or the driver is not installed properly. He tried to pull and plug the wire to make sure the contact was good. If the computer has multiple USB ports, try switching to another one. Read more exciting novels for free
single-chip computer programming tutorial
The following is a basic tutorial written on a single-chip computer: ##1. Initial preparations 1. ** Choose the model of the single-chip computer and the development board ** - According to your learning goals and interests, you can choose models suitable for beginners such as the 51 single-chip processor and STM32. Buy a development board that contains the model of the selected single-chip computer, and prepare the necessary accessories, such as USB to serial port module, LED lights, buzzers, etc. 2. ** Installs the Integrated Development environment ** - For example, 51 MCUs may use Keil, and STM32 may use STM32 CubeID. 3. ** Driver configuration ** - According to the requirements of the development board, the necessary drivers were installed. For example, the development board that uses ST-Link requires the ST-Link driver to be installed. The specific operation may include inserting the driver into the computer, opening the computer device manager to check if the installation was successful, and so on. ##2. Learning to program 1. ** Basic programming ** - Learn how to write and compile a single-chip computer program using the IDE. This included understanding programming languages. Single-chip processors usually used C or assembly language for programming. Beginners were advised to start with C. Familiarize yourself with the operation interface of the IDE, such as how to create a project, how to add source files, etc. 2. ** Simple experimental programming ** - He started writing programs from simple experiments, such as lighting up LED lights, controlling the sound of the buzz, and so on. These simple experiments helped to understand the basic operation of the single-chip computer. To light up the LED lights as an example, you need to understand the settings of the general input and output port (CPU) of the single-chip computer. You need to control the level state of the pins through programming to achieve the lighting or extinguishing of the LED. - When writing code, you must follow the programming specifications and grammar requirements of the selected single-chip computer. For example, in the C language, one had to correctly define variable types, functions, etc. 3. ** Advanced experimental programming ** - As his understanding of the single-chip computer deepened, he tried more complicated experimental programming, such as using ADC (Analogy to Digital Conversion) modules to read the simulated signal, using Pulse width Modulation (Pulse width Modulation) to control the motor speed, and so on. This required a deeper understanding of the other functional modules of the single-chip computer, such as the programming application of timers, interrupt systems, etc. ##3. Search for Tuors and Resources 1. ** Online tutorial ** - Find online tutorial and videos about MCUs on platforms such as Bilibili and CSPD blog. These courses and videos might include basic to advanced programming knowledge, real-life case studies, and so on. 2. ** Book Learning ** - Read classic books about single-chip processors, such as "51 Single-Chip Computer Development from Entry to Proficiency","STM32F10x Series Arm Cortex-M3 Microcontroller Development Guide", etc., to obtain more systematic and in-depth programming knowledge from the books. ##4. Practicing Program 1. ** Project Design ** - Try designing a small project, such as using a microchip to control a smart home device or making a simple robot. When designing a project, one had to plan the functional requirements, hardware selection, software architecture, and so on. 2. ** Project Realization ** - Translate the design into an actual product, write the corresponding program code to realize the project function, and test and debugged it. In this process, various problems may be encountered, such as hardware circuit connection problems, program logic errors, etc., which need to be solved by debugging tools and methods. For example, he could use the single-chip computer's interface to set breakpoints and view variable values in the IDE. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Development of Single-Chip Computer Scale
The following are the general steps and key points of the development of the single-chip electronic scale: ** 1. Hardwares ** 1. ** Main control chip selection ** - He could choose a more common chip like the 8051 single-chip computer. It had 4KB of internal program memory (Scalable), 128-Byte internal data memory (Scalable), multiple bi-directional parallel input/output ports, and other resources to meet the basic control and data processing needs of the electronic scale. - It also has the advantages of low working voltage, low power consumption, strong driving ability, etc. For example, its I/O port is bi-directional and the output circuit is a complementary push-pull output circuit. The external circuit is simple in driving the digital tube display, and its A/D is 10 bits to meet certain precision requirements. 2. ** Sensing and signal processing ** - The sensor was used to obtain physical quantities such as weight. For example, using a pressure sensor to detect the weight of an object usually required a special signal processing chip, such as the HX711 for processing pressure signals (range 0 - 5kg, accuracy 0.1 g). 3. ** display module ** - The 1602 LCD module was used to display the date, time, weight and other information. It was necessary to connect the single-chip computer to the 1602 liquid crystal, including the connection of the data port and the control port. The software programming was also used to initiate and write data into the 1602 liquid crystal. 4. ** Clock module (option)** - If you need to record time-related information, you can use the DS1302 clock chip. It could provide accurate date and time information for the electronic scale. The microchip needed to communicate with it through the corresponding interface circuit to read and set the time. 5. ** Communication module (option)** - If you want to upload the data to the PC display, you can use the 232 serial communication. The single-chip computer had to set up the serial port, including the configuration of baudrate, data bit, stop bit, and other parameters to achieve stable data transmission with the PC. 6. ** Power Circuit ** - It provided a stable power source for the entire system. It was necessary to design a suitable power supply circuit according to the voltage requirements of the selected chip and other electronic components. For example, a voltage stabilizing chip was used to convert the input voltage to a stable 5V or 3.3V voltage to meet the power supply requirements of the single-chip computer, sensor, display module, etc. ** 2. Software ** 1. ** Selection of programming language ** - If you use the 8051 single-chip computer, you can generally use assembly language or C language for programming. For beginners, C language was relatively easier to understand and write complex program logic. - For the PIC-based single-chip computer, you can also use the C language or its specific programming language, but you should pay attention to the differences between the 8051 single-chip computer and the 8051 single-chip computer in terms of instruction set and register usage. 2. ** Program Function Realization ** - ** Initialize settings **: Initialize the ports, timers, and interrupt of the single-chip computer. For example, set the port connected to the sensor to the input mode and the port connected to the display module to the output mode; Initialize the timer to meet the timing requirements (if there is a timing function requirement); Configure the interrupt (if the interrupt is needed to process the sensor data collection or other events). - ** Data Collection **: Obtain weight and other data from the sensor through programming. If the HX711 was used to process the pressure signal, it was necessary to read the processed pressure data (weight data) from the HX711 according to the communication protocol of the HX711 and convert it into an actual weight value. - ** Data processing **: To process the collected data, such as filtering to reduce errors caused by sensor noise. Simple arithmetic average filtering or other filtering algorithms can be used. - ** Show Function **: Show the processed weight, date, time and other data on the 1602 LCD. This required writing the corresponding display function according to the display specifications of the 1602 liquid crystal, converting the data into a format suitable for display and sending it to the liquid crystal display module. - ** Communication function (option)**: If there is a serial communication function, write a serial communication program to send the data to the PC in the agreed format. This included the packaging and verification of the serial port data to ensure the accuracy of the data transmission. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the name of the motor in the 51 single-chip computer?
In the 51 single-chip computer, the motor was called a direct current motor. The direct current motor was a type of motor that was controlled by the pulse width regulation (Pulse Pulse Duration Modulation) technology in the application of the 51 single-chip computer. The structure of the direct current motor in the 51 single-chip computer system was composed of two parts: the stators (including the base, the main magnetic pole, the reversing pole, the end cover, the bearings, the brush device, etc.) and the rotors (including the rotating shaft, the armatures, the armatures, and the fans). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Simulation circuit diagram of the single-chip computer
The following are several examples of simulation circuits related to single-chip processors: - In the ESP32 and Arduino single-chip simulation (such as the website of the website, the simulation circuit that lights up the LED light needs to add an LED light and a current limiting resistance. The negative pole of the LED lamp was connected to the GND pin of the single-chip development board, the positive pole was connected in series with the current limiting resistance, and the other end of the current limiting resistance was connected to the No. 2 pin of the development board. - For the simulation circuit of the steering gear control, add the steering gear in the hardware circuit (the steering gear has three pins, namely, the voltage regulator, the voltage regulator, and the voltage regulator. The voltage regulator is connected to the negative pole of the power supply, and the voltage regulator is connected to the positive pole of the power supply). Then, connect the steering gear to the single-chip computer (if you use the Arduino single-chip computer, you can choose a pin with a "~" to output the voltage regulator signal. In this project, pin 3 is selected as the voltage regulator output pin). - If the simulation uses L298 to drive the direct current motor, the circuit includes the L298N chip (this is a dedicated driver integrated circuit, belonging to the H bridge integrated circuit), the display part uses the PG 160128A (the liquid crystal display dot matrix is 160X128), the input device is a 4X4 matrix keyboard, and it may also include measurement tools such as a virtual scope. The positive and negative rotation of the motor can be controlled by the P1.0 pin of the single-chip computer. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Single-chip computer c language innovation tutorial
C Language for Single-Chip Microprocessors A single-chip computer was a small electronic device used to control and monitor various devices and systems. The C language was a common programming language used to write programs for single-chip processors. If you want to learn the C language, you first need to understand the basic principles and structure of the microchip. Then you need to learn the basic grammar and programming skills of the C language. Next, you can learn the instruction set and interrupt system of the microchip in order to write programs that can control and monitor the microchip. You can also expand your knowledge by learning about the memory and input and output ports of the single-chip computer. Finally, you can practice writing programs for the single-chip computer and try out different control and monitoring methods. Through practice, you can better understand the use of the C language and improve your programming skills. The single-chip C language innovation tutorial requires the comprehensive use of the basic principles of the single-chip computer, the basic grammar of the C language, the instruction set and interrupt system of the single-chip computer, and the practice of writing single-chip computer programs. Through learning and practice, you can become an excellent program developer and succeed in the electronic field.
How to connect the single-chip experiment box to the computer?
Using the 51 development board as an example, connect the single-chip experiment box to the power supply, use the download cable to connect the single-chip experiment board to the computer, and connect the USB cable to the USB port on the board. This port can not only realize the power supply, but also the program burning function. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to use a single-chip computer to make a mouse battery
If you want to use a single-chip computer to build a mouse battery, you first need to determine the power supply method of the mouse. For example, the mouse in Data 3 uses a 14550 lithium battery for power supply. Then, he would choose the appropriate components. He needed a low-power single-chip computer (most of the current single-chip computers could do that), a touch button chip, and a P-mos tube. The touch button chip is used to detect the hand touching the mouse. When the mouse is touched, it will output a signal. After the single-chip computer senses this signal, it will control the MOS tube to turn on and supply power to the mouse. When the signal disappears (the hand leaves), the power supply will be cut off after a delay for a period of time to automatically save battery energy. If some microcontrollers support high current output pins (output current is not less than 50 milliamperes), then the MOS can also be omitted. In addition, since the voltage range of a lithium battery was 2.7 - 4.2V, it was necessary to choose a single-chip processor that supported 2.7 - 5V. Otherwise, it would be necessary to add an IDO to prevent the voltage from exceeding the range. The MOS and touch chips also needed to choose components with appropriate voltage ranges. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to control the 24V motor and start it with a single chip computer
For a 24V motor with a high current, it could generally be controlled by a MOS tube or an IGBT. Relatively speaking, an mos was a more economical and practical choice. You can use a single-chip computer to build an H-bridge drive circuit to drive a 24V brush motor. First, draw the H-bridge drive circuit. In the protues, you can use a high-voltage driver chip like the ICR2101 (24V is considered low voltage compared to the voltage it can drive) to build the circuit. At the same time, you need to consider the addition of some other circuit components, such as the addition of a circuit. Because there was an interelectrode capacity (between the G and S poles) inside the MOS tube, the resistance coming out of the G pole and the interelectrode capacity of the GS formed an RC-charge and discharge circuit. By adjusting this resistance, the rise time of the MOS output from the low level to the high level of the dimming pulse could be adjusted. A parallel connection of the G-pole resistance with a second voltage could make the discharge time of the dimming pulse from the high level to the low level faster, thus affecting the fall time. In addition, when it came to the single-chip processor receiving the signal from the 24V passive switch, the 24V high frequency needed to be reduced to the single-chip processor pin frequency. In the motor control, by controlling the operation of turning on and off the MOS tube in the H-bridge circuit, the motor was controlled and started. For example, through the electromagnetic coil of the contactors in the control circuit, the power supply of the main circuit of the motor was switched on and off to start the motor. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
stm32 single-chip computer USB download program circuit
There were two ways to download the STM32 program. One was based on JTAG (SWD). This method required an simulator (such as J-Link and U-Link) to efficiently and quickly debugged the STM32 single-chip system. The other was based on serial port. The entire STM32 series supported this method. This method could download the HEX file to the STM32 chip through a USB cable and the corresponding ISP download software. In order to download the circuit through the serial port, one must first understand the several boot modes of the STM32. If you want to download the code through the serial port, you need to set BOOT0 to 1 and BOOT1 to 0. If you want the STM32 to run the code as soon as it is reset, you need to set BOOT0 to 0 and BOOT1 to any value. A circuit could be designed to control the one-button download circuit through the serial port to USB chip CH340G's DTL #and RTS#pin signals, thereby indirectly controlling the STM32's RESET and BOOT0 pin signals, achieving the effect of one-button download and operation through the serial port. The serial port download software can choose MCUSP, which can automatically allocate the BOOT0 and RESET signals through the DTL and RTS signals of the serial port. The user does not need to manually switch the state. Open MCUIsp, click Search serial port, and it will automatically find the onboard serial port of the circuit board. Choose the baudrate of 460800 in the bit rate, select the low level reset of DTL in the lower left corner, and then load the burn file into BootLoader at RTS high level. Before the program was written, click to read the device information. If the relevant information appeared, it meant that the serial port connection of the circuit board was successful. Then click to start programming, and the program began to be written. After the program was successfully written, a message indicating that the program was successfully written would appear. The specific process was as follows: mcuisp controls the DTL output to be low, so DTL #output is high. Then RTS is set to high, so RTS#output is low, so Q3 is turned on and BOOT0 is pulled high. At the same time, Q2 will also be turned on, and the reset pin of STM32 will be pulled low to achieve a reset. Then, after a delay of 100ms, mcuisp controls DTL to be at high level, DTL #will output low level, RTS will remain at high level, RTS#will continue to be at low level. At this time, the reset pin of STM32 will become high level because Q2 is no longer connected. STM32 will end the reset, but BOOT0 will still remain at 1, thus entering the SP mode. Then mcuisp can start to connect to STM32 and download the code, thus realizing one-click download. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Can an 8-bit single-chip computer be used as an electric tool?
Single-chip computers could be used in the industrial field, while electric tools belonged to the industrial category. The 8-bit single-chip computer was a single-chip computer with an internal arithmetic unit that could process 8-bit binaries at a time. It could perform operations such as addition, reduction, multiplication, and division. The internal register was mostly 8-bit, so it could be regarded as a weak micro-computer system. Theoretically, an 8-bit single-chip processor could be used to develop and control functions related to power tools, but the specific application depended on the complexity of the power tool's function development. If the power tool needed to develop a simple function, an 8-bit single-chip processor might meet the demand. If more functions were needed, a single-chip processor with a higher number of digits might be needed. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>