Programmer Group

catalogue 1.STM32CubeMX operation   2. Program perfection 2.1 perfect usart.h   2.2 improve usart.c 2.2.1 header file improvement 2.2.2 add callback function 2.2.3 serial port initialization function 2.3 perfect tim.h 2.4 improve tim.c 2.4.1 improve header file   2.4.2 improve callback function and initialization fun ...

1, Design requirements A signal frequency detector is designed with FPGA, which requires: (1) Measuring pulse signal; (2) Frequency measurement 1-10MHz and duty cycle 10% - 99%, accurate to 1%; (3) Display the measured frequency and duty cycle on LCD1602; 2, Design scheme FPGA design is mainly divided into three modules: 1. Measured signal gen ...

Premise: Time slice rotation method: mainly used for process scheduling in time-sharing system. In order to realize rotation scheduling, the system arranges all ready processes into a queue first process according to the principle of first in first out, and lets it run a time slice on the CPU. Time slice is a small time unit, usually in the or ...

Development board: Wildfire domineering V1 Chip: stm32f103ZET6 Timer: TIM3 Output channel: CH3 GPIO: PB0 frequency F = 72M / ((ARR+1)*(PSC+1)) Unit: Hz Duty cycle Duty_Cycle = (TIMx->CCRx) / ARR Unit:% The following test is to observe the brightness change of LED small lamp by adjusting PWM duty cycle Circuit Output comparis ...

Some understanding of compiled code ARM Cortex-M underlying technology -- principle and application of compiling kernel Reference website: https://www.cnblogs.com/39950436-myqq/p/11545140.html 1. Definition of compilation link No matter how simple the code we write, we must go through the process of "compiling -- > linking" to g ...

catalogue 1, Generate keil project using stm32subemx 1.1. Download stm32cupemx 1.2. Create a new project 1.3 initialization configuration   1.4 project export   2, Improvement and Simulation in keil 2.1 improve functions 2.2 simulation waveform   2.3 burning demonstration 3, stm32usart serial communication 3.1 requir ...

Design of temperature and humidity display in cabin based on STM32 This design uses the STM32F103ZET6 elite development board of punctual atom. Data acquisition: the temperature and humidity sensor uses DHT11 to collect humidity and DS18B20 to collect temperature. Display: the display part is divided into TFT-LCD display and upper computer Lab ...

catalogue 1, Understand serial communication 1. What is serial communication 2. Serial communication protocol 2, STM32 uses the serial port to send "hello windows" to the host computer 1. Wiring:   2. Code 3. Burn in board 4. Serial port debugging   3, References   1, Understand serial communication   1. What i ...

1) Experimental platform: new starting point V2 development board of punctual atom 2) Platform purchase address: https://detail.tmall.com/item.htm?id=609758951113 2) Full set of experimental source code + manual + video download address: http://www.openedv.com/thread-300792-1-1.html 3) Students interested in punctual atomic FPGA can add group d ...

1. UART introduction Universal synchronous asynchronous receiver and transmitter is a A serial communication device, which can flexibly exchange full duplex data with external devices. There is another difference from USART UART(Universal Asynchronous Receiver and Transmitter) cuts out the same data on the basis of USART Step communication ...