rcc boots

#if!defined (Hse_value)#define Hse_value ((uint32_t) 24000000U)/*!#endif/* Hse_value */ The size of the Hse_value value determines the period in which the clock ticks. The setting of this value does not affect the clock cycle of the main frequency and the changes of the associated timer. __weak uint32_t hal_rcc_getsysclockfreq (void){uint32_t pllm = 0U, Pllvco = 0U, PLLP = 0U;uint32_t sysclockfreq = 0U; /* Get SYSCLK Source-------------------------------------------------------*/Switch (

seconds to interrupt .Re-emphasize:The " second interrupt " Here is a conceptual second interrupt, and its interrupt interval is determined by the clock source and crossover value you choose, not the actual 1-second interrupt.We can try to divide the value in the source code by half 31250 of the 62500, it can be seen that the second interrupt interval is 0.5 seconds (please modify the experiment Test yourself).Ⅳ, source code AnalysisThe author uses the F1 standard peripheral library (also sugge

Interface, Backup interface, CAN, USB, i2c1, I2C2, UART2, UART3, SPI2, Windows watchdog, Timer2, Timer3, Timer4. Note that the USB module requires a separate 48MHz clock signal, but it should not be a clock for the USB module to work, but simply a clock to be used by the serial Interface Engine (SIE).　　The clock that the USB module works on should be provided by APB1. The devices connected to the APB2 (high-speed peripherals) are: UART1, SPI1, Timer1, ADC1, ADC2, all normal IO ports (PA~PE), an

Original Address:About the use of resources under QT and the excessive memory consumption of resourcesTechnical Achievement Dream Recently, we study how to invoke the image from the outside, and then study how to use the image resource. The most common online post is this, the feeling summed up is also good. Http://www.cnblogs.com/lzjsky/archive/2012/08/20/2647471.html in general, there are two ways of doing it. One is the use of QRC resource files, that is, in the QT project to add resource fi

used, the PLL must be enabled, and the clock is configured as 48 MHz or 72 MHz. In addition, the stm32 can also select a clock signal to be output to the MCO foot (pa.8), which can be a 2-division, Hsi, HSE, or system clock output for the PLL. Note that when the frequency of APB is 1, its frequency doubling value is 1; otherwise, its frequency doubling value is 2. Devices connected to apb1 (low-speed peripherals) include: power interface, backup interface, CAN, USB, i2c1, i2c2, uart2, uart3, sp

frequency doubling value is 2. Devices connected to apb1 (low-speed peripherals) include: power interface, backup interface, CAN, USB, i2c1, i2c2, uart2, uart3, spi2, window watchdog, timer2, timer3, timer4. Note that although the USB Module requires a separate 48 MHz clock signal, it should not be the clock for the USB Module to work, but only the clock for the Serial Interface Engine (SIE. The clock used by the USB module should be provided by apb1. Devices connected to apb2 (high-speed perip

the drill shaft is moved around X, and the positioning method of Y is the same. This method can be applied to the positioning of UV/YAG beam with strong performance. If the line outside CO2 beam is weak, it is not suitable because its path is too long and its energy is not concentrated.2. Different Processes of carbon dioxide laser into holes2.1 opening copper window conformal maskOn the core board of the internal layer, press RCC first, open the cop

The following is reproduced http://blog.csdn.net/zhoujiaxq/article/details/11201893 content, is a simple introduction to the image algorithm processThe current spice image compression is mainly based on QUIC,GLZ and JPEG. Quic and Glz are lossless compression algorithms, Quic mainly used for photographs, Glz for artificial images, JPEG is mainly used for photo compression but is lossy. JPEG can save 50% of the bandwidth, Glz can only save 20%, but JPEG brings more overhead, so you cannot use JPE

selenium Overview Selenium is an automatic Test the tool to accurately reproduce the test cases steps written by the software tester by simulating the various actions of the user on Development environment ConfigurationTake Java as a test language as an example, create a new Java project in Eclipse test Search Engine, download the SELENIUM-RC software package, and selenium server/selenium Java client The driver jar and the JUnit library are added to the project's Java Build Path.Figure 1. Bu

Serial peripheral interface (SPI ). Initialization steps:1. Connect to the SPI peripheral clock and set it through RCC-> apb2enr.2. Connect the peripheral clock of the reused gpio, which is also set through RCC-> apb2enrFor more information about how to connect the gpio clock, see section 8.1.4 of the stm32 reference manual.As mentioned in the manual: For the multiplexing output function, the port must be c

program as needed. ③: Perform anti-registration if you do not need it. Step 1 mainly uses a tool that comes with QT: rcc.exe (in the bin folder ). This is a resource compiler of QT. The compiling object is the qrc file, and the RCC binary resource file is generated. We can use it to execute commands.RCC-binary name. qrc-O name. RCCTo convert the qrc resource file to the RCC binary resource file. In the p

. /******************************************************************************** Function Name : CRC32_ forwords* Description : Input is the pointer and length of 32bit buffer * Input : * Output : * Return : * Description :* *************** /u32 crc32_forwords (u32 *pdata,u32 ulen) {u32 i = 0, UData = 0;if ((rcc->ahb1enr rcc_crc_bit) = = 0) {rcc->ahb1enr |= rcc_cr

33 different ways to distribute shoes My diagrams are all drawn as though looking from the front of the shoe, such that the lower part of the lacing is at the bottom of the disince, and are color-coded to make it easier to follow where the specified runs. generally, the start of the lacing is gray, whilst the starting end that starts on the left side is blue and the end that starts on the right side is yellow. for color-blind visitors, Blue = dark = left, yellow = light = ri

Exporting links in the SEO industry often sounds like derogatory behavior, and seoer have been arguing about how to make export links on their website. Now, let's compare two different strategies for linking around. Take a look at the benefits and problems of both strategies, and let me choose my own export strategy for the outside chain. Strategy One: Let's say we have a website about red boots, and another site has a lot of information about red

void Rcc_deinit (void){RCC-GT;CR |= (uint32_t) 0x00000001; Turn on the internal 8MHz clock#ifndef STM32F10X_CL//stm32f10x_cl refers to the STM32 Interconnect series microprocessorRcc->cfgr = (uint32_t) 0xf8ff0000; 27-31 bits in the CFGR register of other types of processors are reserved bits and 24-26 are MCO bits#else//And the CFGR register of the interconnected processor, 28-31 bits are reserved bits and 24-27 are MCORcc->cfgr = (uint32_t) 0xf0ff000

V God: Vol http://www.55188.com/thread-3371557-1-1.html Change hands: If (Capital> 0, V/capital * 100, v), linethick, precision2;HS: = change hands;K: = SMA (c-llv (L, 9)/(HHV (H, 9)-llv (L, 9) *, 3, 1), color00ff00, linethick0, precision2;D: = SMA (K, 3, 1), colorffffff, linethick0, precision2;J: = 3 * K-2 * D;HLP: = SMA (WINNER (c) * 100,3, 1), color2588ff, linethick0, precision2; NN: = sysparam (3)-sysparam (2) + 1;Hh: = HHV (v, NN );LL: = llv (v, NN );Maximum: = HH [sysparam (3)];Minimum: =

1. Create a. qrc Resource Description file For example, Example. Qrc: By default, the name used to access resources in an application is prefixed with the name in the Resource description.:/. For example:/Images/cut.pngYou can upload the local cut.png file. For other rules, see the QT document the QT resource system. 2. Use RCC to compile this file RCC-binary myresource. qrc-O myresource.

Introduction to STM32 clock library function RCC_DeInit, stm32rcc_deinitVoid RCC_DeInit (void){RCC-> CR | = (uint32_t) 0x00000001; // enable the internal 8 MHz clock# Ifndef STM32F10X_CL // STM32F10X_CL indicates the STM32 interconnected series microprocessor.RCC-> CFGR = (uint32_t) 0xF8FF0000; // The 27-31 bits in the CFGR register of Other Processors are reserved bits, and the 24-26 bits are MCO bits.# Else // In the CFGR register of the interconne

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Here you will gradually learn how to make a horror chainsaw movie poster. Celebrating the sixth show of the Chainsaw, (wow, soup likes to watch the Saw) Here you will learn how to make a dirty and scary chainsaw movie poster.This is the poster for the new chainsaw sixth. We'll replace the glove-making hand with the foot made of boots. This tutorial is not very complicated and should be easy to do at any level. Here are the resources I have used: