stm32 book

This article from: http://www.openedv.com/posts/list/302.htmAuthor Zhang YangThe clock system is the core of the processor, so it is necessary to learn the clock system carefully before learning STM32 all the peripherals, which helps to understand the STM32 deeply.Here is a STM32 clock diagram from the Internet, which looks clearer than the one in the

Introduction to DMA and Direct Memory Access for STM32, dmastm32 The first time I came into contact with DMA, I learned the arm9-bare-board program at school. I thought it was almost two years later. Now let's take a look at the dma of the STM32 platform. With the support of the standard peripheral library, the DMA programming of the STM32 is very simple, but it

First , the background as described earlier, the advantage of using standard library functions is that it can be developed quickly, without going to the data sheet, with a cautious configuration of oneComplicated registers, because these work stmicroelectronics has found some top engineers to help you, and masterpieces are both library functions. Of course, some codeThe library function cannot be used, given the low power consumption or the need for a very small ROM, which is usually said,"highl

I believe many people want to upgrade the firmware, just like the ones on the mobile phone, if the firmware is not enabled. The following describes how to implement the bootload function. Some time ago, I had a project on the bootload design. So I carefully studied it. I used to use the official stm32 and did not go into details. After completing this operation, I found some problems with the official version. For example, during the ymodem transmis

Embedded Linux and 51/430/stm32 Embedded development of the Difference and Association summary: Microcontroller series: 8051, MSP 430, STM32 f0-3 (ARM cortext m0-m3 series), etc.The main feature is that there is no memory management unit, no Linux operating system with virtual memory, only bare-metal programs or a Ucos class of real-time operating systems can be run. The main work is peripheral driver devel

1, learning USB time to play, feel the USB is really too complicated, read a book to see the head big, feel completely chaotic, as if not remember things like, hey 2, just do this, first engage in other to learn USB knowledge. 3, this STM32 analog USB to the serial port is a transplant official website of a routine, found that the official website of this routine bug still a lot, hehe 4, copy the code of th

STM32 practical application (I) -- 1602 Bluetooth Clock 1 LCD Display Test, 20171602Preface After studying for so long from 51 to ikef4, I finally got a clue. Now I have learned the basic usage of GPIO, interrupt, timer, and watchdog, so I want to see if I can do something, I just want to review my recent knowledge. Last semester, I designed a single-chip microcomputer course with a clock that can be used for Bluetooth, button calibration, and tempera

The problem is as follows:Follow the normal steps to use KEIL5 to Rongchu stm32 download program, swd download method prompts no cortex-m SW device Found,jtag way hint no cortex-m device found in Jtag chainReason:The Jtag interface arrangement of Rongchu STM32 MCU is not standard JTAG cabling methodWorkaround:Wiring yourself in JTAG or SWD's wiring mode10 feet of the Itag interface, 3, 4 feet (Trst correspo

retrospect, perhaps I did not notice that 51 single-chip serial port baud rate generator can only use T1, and I have been using T0 as a baud rate generator.Recently began to contact the STM32 series chip, because there is a firmware library for the operation of the underlying register is encapsulated, very close to advanced programming, learning and easy to use, and now many mobile chips are based on the ARM architecture, So learning arm chip is also

Sort out the underlying structure associated with STM32 to help digest understandingFirst several pictures (the main reference stm3210x series)1. Chip structure Composition diagram:2.STM32 Internal structure:3.CORTEX-M3 Module Structure diagram:4.STM3210X Internal structure:Bridge:four active units:M3 Core Icode Bus (i-bus), Dcode Bus (d-bus), System bus (S-bus), DMA (DMA1, DMA2, Ethernet DMA)Four passive u

In stm32 The module comes with two guard dogs: Independent guard dog (iwdg) and window guard dog (wwdg) The independent watchdog of stm32 is driven by a dedicated 40 kHz low-speed clock. Even if the main clock fails, it stillValid. Note that the independent watchdog clock is an internal RC clock, so it is not accurate to 40 kHz,In the range of 30 ~ A variable clock between 60 kHz is calculated at a frequen

When I tested my own USB driver the day before yesterday, I found that the out transmission rate from the host to the stm32 (from the host to the device) was only kb/s, and it was truly dizzy. After research, we found that it is the relationship between the pipe maxtransfersize parameter set in the driver. Originally, we set 64 to only 65535 kb/s, and set it to according to the driver values of other USB devices, test the USB out speed, reaching kb/s,

I have been learning STM32 for almost a year. Now I am working on the STM32 platform. I will summarize the basic knowledge of STM32 when the workload is relatively small a year ago, in the case of no accident, you will be able to continuously release complete notes. During the course, you will primarily follow the wild fire tutorial, and then sort out the appropr

This article transferred from: http://www.ichanging.org/stm32_NVIC.htmlThe CORTEX-M3 supports 256 midrange, which contains 16 core interrupts and 240 external interrupts. The STM32 has only 84 interrupts, including 16 core interrupts and 68 unshielded interrupts.There are only 60 interrupts on the stm32f103 and 68 interrupts on the f107. Interrupts are a very basic feature of stm32, learning to use interrup