freertos stm32

The stm32 microprocessor is based on the ARM core, so many ARM-based embedded development environments can be used on the stm32 development platform. Development tools can be used for stm32 development. Selecting an appropriate development environment can speed up development and reduce development costs. This chapter briefly introduces the commonly used developm

Because the chip used to participate in the computer mouse is the stm32 series, coupled with relatively tight time, we basically learn while doing the module. I encountered a lot of difficulties, but I still felt that I had learned a lot and wanted to share it with me .. Okay, let's just talk about it. Pulse Width Modulation (PWM), short for "Pulse Width Modulation, it is a very effective technology that uses the digital output of a microprocessor to

This article was originally written by Guan Haitao. The original author has all rights reserved. For more information, see the source.As an industrial chip, ADC sampling is a very important peripheral. Stm32 integrates three 12-bit, 18-channel internal ADC, with a maximum speed of 1 microsecond. Combined with DMA, it can free up the CPU for better processing.Other logic functions on the ADC interface include:● Synchronous sampling and holding● Cross s

One of the powerful functions of STM32 is to support online IAP upgrades, IAP (In-Application Programming), that is, Programming In Applications ", generally, the program itself can write data or modify the program into the program memory. With the IAP function, you can easily update and upgrade the program firmware of the product through the reserved Communication Ports (such as serial port, USB, and IIC) even after the product is released, you do no

One: Trigger modeThe external interrupt of the STM32 is triggered by the edge, and the level trigger is not supported;Two: External interrupt groupingEach gpio of the STM32 can be configured as an external interrupt trigger source, STM32 by dividing many interrupt trigger sources into groups according to the PIN's sequence number, such as: Pa0,pb0,pc0,pd0,pe0,pf0

The Universal Synchronous Asynchronous Transceiver (USART) provides a flexible method for full-duplex data exchange with external devices using the Industrial standard NR asynchronous serial data format. The Usart uses a fractional baud rate generator to provide a wide range of baud rate options, supporting synchronous one-way communication and half-duplex single-line communication.1, STM32 firmware Library use of peripheral equipment, the main ideaIn

Because of the company, although all to engage in the development of low-level code, but as a cross-industry, a lot of things need to start from scratch, it is troublesome and headache, so feel easy not to trade. Fortunately the main core did not change how much, not long to adapt. To the company immediately after the task, the initial company common problems. Can say nothing, the boss said to get this thing, then I will analyze the project needs, write the project plan, and the boss to determin

(DataLen ); Count_out = 1; 2. Data Transmission UserToPMABufferCopy (InBuffer, GetEPTxAddr (ENDP1), 64 ); SetEPTxCount (ENDP1, 64 ); SetEPTxValid (ENDP1 ); ========================================================== ========================================== Summary 2: After the STM32 USB program changed bulk ep to a dual-buffer mechanism, it went viral to 1 MB/S! From: http://www.powermcu.com/bbs/viewthread.php? Tid = 693 When I tested my own USB dr

The working environment has migrated from Windows to Linux for some reason recently. STM32 was originally developed under Windows and is now being developed on Linux instead. First of all, briefly describe the software and hardware development environment. Host: Operating system: CentOS7 x86_64 (grome Desktop Edition) ide:eclipse Luna Jlink driver: jlink_linux_v434a tool chain: gnu-arm-toolchains-4. 9-2014q4 Gdb:arm-linux-gdb V7.8.1 Hardware platfor

Stm32 Running water lamp Experiment Holiday, finally have time to engage in my STM32 of the small board. Started soldering last night, right? Core Board Welding completed, the first welding 0805 package, QFP64 is the first time. Just started feeling a little afraid, but fortunately, the forum is not the introduction of welding experience. The theory is still relatively solid. Welding

I. Description of the EnvironmentHardware Development Board: Wildfire STM32 Development BoardDownloader and Debug Interface: Jlink + JTAGOperating system: Virtual machine VMware6.5 + Ubuntu12.0.4Debugging Tools: Arm-none-eabi-gdbDebug server: Jlink GDB ServerDebug Project target file: led_test.elfSecond, step1, install Jlink DriveRefer to the construction of STM32 development environment under Linux2, insta

I. Description of the transplant environment(1), WIN10 system(2), IAR (ewarm) 7.7(3), STM32 standard firmware library 3.5.0 http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/ Stm32-embedded-software/stm32-standard-peripheral-libraries/stsw-stm32054.htmlSecond, the transplant procedure(1), first establish a C language of the mai

this article from http://blog.csdn.net/hellogv/ . References must be indicated by source! The last time I talked about Lua porting to STM32. This time, the basic script interpreter is ported to STM32.Running basic scripts on STM32, the same can be combined with wearable devices. It is also possible to learn the MCU's entry tool as a beginner, but the premise is t

Stm32--adcTenet: The learning of technology is limited and the spirit of sharing is limitless.First, ADC IndicatorsThere are 18 channels to measure 16 external and 2 internal signal sources. The A/D conversion of each channel can be performed in a single, continuous, scan or discontinuous mode; the results of the ADC can be left-aligned or right-aligned in a 16-bit data register, and the analog watchdog feature allows the application to detect whether

For STM32 Speaking (or the Timer2 case .), the external interrupt channel position 28 (number 35th priority) is TIME2 to the external device, but the TIME2 itself can cause an interruption of the interrupt source or event, such as Update event (overflow/underflow), input capture, output match, DMA request, etc. All TIME2 interrupt events are the interrupt request to the STM32 kernel through a TIME2 interru

About the can filter of stm32The stm32 common chip can has 14 sets of filter groups, and the interconnection type has 28 sets of filter groups.We generally use common filters, so in this article we can say that stm32 has 14 filter groups.According to the configuration, each group of filters can have one, two, or four filters.These filters are equivalent to checkpoints. Each time you receive a message, you m

Previously Used stm32f103rbt6, which is within 100 pins without FSMC. It is troublesome to write timing programs on the LCD screen or SRAM. Later it was changed to stm32f103zet6 with FSMC. However, I encountered a problem when learning FSMC. I didn't understand the last two sentences at first. Later I checked some materials and finally understood them. First of all, I would like to explain some common knowledge: The address bus width only indicates the CPU addressing range, which has nothing to

added to a simulated load using a repeating pulse sequence of on or off. (To put it simply, a digital signal is used to control the load to achieve the effect of simulating the signal control load; the load, such as the steering gear) Changing the pulse cycle can achieve the FM effect, and changing the pulse width or duty cycle can achieve the pressure regulating effect. Therefore, the appropriate control method can be used to coordinate the voltage or current and frequency changes; PWM control

The original Article portal has five clock sources in stm32: Hsi, HSE, LSI, LSE, and PLL. There are actually four clock sources, as shown in (gray-blue). The PLL is generated by the frequency doubling of the PLL circuit.① HSI is a high-speed internal clock, RC oscillator, with a frequency of 8 MHz. ② HSE is a high-speed external clock, which can be connected to a Z/Ceramic Resonator or an external clock source. The frequency range is 4 MHz ~ 16 MHz. ③

Depressed, many things are unfamiliar, and it takes some time to create a project. First, write out the questions and steps. First, it is programmed based on registers. 1. Download The stm32 Firmware Library from the official website. I use 3.5 2. Create an stm32 folder (not for Storing Projects) and store the basic files required for creating an stm32 project. W