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This paper takes the automotive MCU chip AC7811 of Wuhan Jiekai technology as the hardware platform and uses GNU GCC as the development tool. Analyze the process of Compile, Link and Loader in detail, as well as the detailed analysis of image (binary program) startup. The whole process analysis involves RW read-write DATA segment, Copy from Fla ...

preface Learn the embedded real-time operating system (RTOS), take uc/OS as an example, transplant it to stm32F103, and build at least three (tasks): two tasks control the LED on-off in 1s and 3s cycles respectively; Another task sends "hello uc/OS! Welcome to RTOS multitasking environment!" through the serial port in a 2s cycle. ...

cubemx-based stm32f103 hardware read-write EEPROM An erasable memory is introduced today. EEPROM (Electrical Erasable Programmable read only memory) is a live, erasable programmable read-only memory. It is a memory chip with no data loss after power failure. EEPROM can erase existing information and reprogram it on a computer or on a dedicated ...

1, Using CubeMX to build STM32F103C8T6HAL Library 1. Configure RCC 2. Configure SYS 3. Set PC13 to GPIO_Output 4. Set serial port USART1 5. Setup project 6. Generate code 7. Modify code Add a statement to the while loop in the main function while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ HAL_ ...

Why window watchdog?         For the general watchdog, the program can refresh the watchdog at any time before it is reset, but there is a hidden danger. It is possible that the program runs disorderly and returns to the normal place, or the disordered program just performs the refresh watchdog operation. In ...

1, SPI   1. Introduction SPI (Serial Peripheral Interface) is a synchronous serial data transmission standard proposed by Motorola Company. It is a high-speed, full duplex and synchronous communication bus, which is widely used in many devices. 2.SPI interface SPI interface is often called 4-wire serial bus, which works in master / slave m ...

Semaphores can be used for resource management and task synchronization. Semaphores in FreeRTOS are divided into binary semaphores, computational semaphores, mutually exclusive semaphores and recursive mutually exclusive semaphores. 0x01 binary semaphore Binary semaphore is actually a queue with only one queue item. This special queue is eith ...

Development board: Wildfire domineering V1 Chip: stm32f103ZET6 ADC: 1 CHANNEL: 11 GPIO: PC1 To create a new project 1. Open STM32CubeMx software 2. Select chip model: stm32f103ZETx 3. Configure project properties 4. Confirm clock source 5. Configure system clock 6. Open channel 11 of ADC1 7. Configuration structure typedef struct { ...

Premise: software installation and learning video explanation When we use the neural network in openmv, there is no nn library for you to call in the new version. It needs to be in the old version. Baidu cloud link: https://pan.baidu.com/s/1bgLiLMxyqqL9X3h5dN8cZA   Extraction code: behn   (can you praise this alone) The basic and u ...

1, Interrupt Data output mode: Interrupt process: Interrupt program execution process: Function of interrupt: 1. It can solve the contradiction of data transmission between fast CPU and slow external devices. 2. The CPU can serve multiple external devices in time-sharing to improve the utilization of the computer. 3. The CPU can handle th ...