rcc boots

void Led_init (void)Gpio_inittypedef gpio_initstructure;Rcc_apb2periphclockcmd (Rcc_apb2periph_gpioa, ENABLE); Enable PA Port Clock(RCC Clock You can not see first ) GPIO 's library functions The main use in library functions is as follows:Gpio_initGpio_structinitGpio_setbitGpio_resetbit Other According to the needs of the use! function Gpio_init This is set to 0 Gpio_initstructure.gpio_pin = Gpio_pin_8; led0-->pa.8 Port Configura

HCLK is 72MHZ and mode B is used, the following timing is available:Address Settling time: 0x1Address hold Time: 0x0Data Settling Time: 0x2Note: Here address to establish the address to keep the data established three times do not know how to set out ..... I set it according to the experience of others. Master know this setting different what difference, please advise, thank you:) * ******************************************************************************* Function Name: lcd_ctrllinesconfi

1, open the software, new project, select Chip Signal, here Select2, USART1 enable to select the "asynchronous" mode:3. Configure "RCC", High speed Clock (HSE) Select external Crystal oscillator4, configure "SYS",5, "Clock Configuration" option, Crystal Fill 8M, select "HSE", Hclk fill in 180MHz, as shown6, "Configuration", click "", configure the Usart1interrupts must be selected, otherwise, the program runs, can only run once. 7, the Option "Project

(DISABLE);//close the internal low-speed clockRcc_plli2scmd (DISABLE);//Close Plli2s ClockRcc_rtcclkcmd (DISABLE);//disables the RTC clockRcc_hseconfig (rcc_hse_on);//external Clock Enable while(! Rcc_waitforhsestartup ());//Waits for HSE start-uprcc_pllconfig (Rcc_pllsource_hse, PLLM, Plln, PLLP, PLLQ);//Configuring the PLL clockRcc_pllcmd (ENABLE);//PLL Clock Enable while((RCC-GT;CR rcc_cr_pllrdy) = =0);//wait for the PLL clock to be ready

In Qt, the. qrc file is a file that resembles an XML structure that describes the resource locations, examples, application icon files, and so on, used by the application in structured data. It is ultimately similar to the. ui files that are generated by the command line tool provided by QT. qrc_xxx.cpp file. is eventually linked to the application.The corresponding command line is this:"$ (Qtdir) \bin\rcc.exe"-name "% (filename)"-no-compress "% (FullPath)"-O. \generatedfiles\qrc_% (filename). c

Embedded systems occupy an important position in the field of micro-control (temperature, humidity, pressure detection, four-axis aircraft), which are implemented by microprocessor CPUs (such as STM32) and sensors and controllers, and connect them so that they can communicate with each other properly. is the module to be sued in this section, ADC Analog-to-digital conversion peripherals. Let's start with the simplest experiment and learn more about this magical peripheral.The ADC analog-to-digit

with w5500 First, click Replace All to Replace the W5200 with the W5500. If there are references in other files to the original w5200.h, please find the replacement yourself, here is just an example.5. Open the Main.c file, if the original file has a definition of Mac, gateway, IP, subnet address, you can delete, in the new driver device.c in the Set_default function to focus on the definition, the previous can be deleted.6. Open the Main.c file and delete the previously defined Gpio, NVIC, and

System Clock tick experiment is not difficult, I was in the face of the simple said, but it involves the most complex STM32 is the most widely used peripheral-nvic, if the RCC is the real-time needs to consider the part, then NVIC is stm32 functional realization of the foundation, NVIC difficulty is not high, But the understanding is still more complicated, I will in this article from the actual application to explain, of course, the best to study Son

0. The following are operating on the system CentOS 6.3 x86_641. Attempt to run the program, prompting "Libc.so.6:version ' glibc_2.14 ' not found" because the GLIBC version of the system is too low and the software is compiled with a higher version of GLIBC caused by: [Email protected] bin]$ pwd /var/vmdisks/cross/mingw32/bin [[email protected] bin]$ ls Lrelease QtCore4.dll QtNetwork4.dll QtSql4.dll QtXml4.dll MoC QtDeclarative4.dll QtOpenGL4.dll QtSvg4.dll

flow before peripheral settings USART1:1. The serial peripheral peripherals and the GPIO ports they occupy are configured, and the Gpio port used is PA9 (USART1_TX), PA10 (USART1_RX).2. The peripheral clock must be configured, and before initializing the peripheral and Gpio port configuration3. Usart peripheral configuration is mainly protocol-related parameter configurationSerial Peripheral ConfigurationFor the parameter reference of the GPIO port configuration stm32f Series microcontroller re

name "PIN":int stm32_hw_pin_init (void) { rt_device_pin_register ("pin" , _stm32_pin_ops, rt_null); return 0 ;} Init_board_export (stm32_hw_pin_init); // Stm32_hw_pin_init'll be called in Rt_components_board_init ()Third, when using the PIN device, you need to define the Rt_using_pin in the Rtconfig.h macro. Also modify the array of IO ports used in GPIO.C:/*STM32 GPIO Driver*/structpin_index{intindex; uint32_t RCC; Gpio_typedef*Gpio; uint3

Parsing qt Resource File usageTransferred from: http://mobile.51cto.com/symbian-270121.htmThis article introduces the use of QT files in detail, and, like most GUI framework design tools, QT introduces a resource file system. It is used to easily compile some binaries (mostly picture files) into an executable program, eliminating the hassle of attaching other files when the application is republished.This article describes the use of qt resource Files , and, like most GUI framework design tools,

(x = A, B, C, D, E, F, G) ports respectively, when the peripheral clock is not enabled,ProgramThe value of the peripheral register cannot be read.Porta clock: RCC-> apb2enr | = 1 Porta clock After the peripheral clock is enabled, the 16-bit gpioa can work according to the set status. Then, the 16-bit gpioa can be set to the first position in the upper position.Gpiox_crhSet in the register. each bit of gpioa has four digits of the register to se

1. design requirements EM-STM3210E Development Board has a LED lamp D1, write a program to light up the light. 2. hardware circuit connection On the Development Board, D1 is connected to the PF6 pin on the STM32F103ZE chip, as shown in. 3. Software Programming According to the task requirements, the program content mainly includes: 1. configure Reset and clock control (RCC) to enable the clock of the GPIOF port Module 2. Configure the PF6 pin of the

everything is recompiled whenever a file is modified. The traditional way to change this is to write Makefile, and then compile with just the input make, and he will determine which files are changed and need to be recompiled.The other features that are provided by the IDE itself, such as vs. Here's a quick look at the corresponding makefile file for this example:Mingw32-make's Makefile FileCppflags =-dqt_core_lib-dqt_gui_lib-ie:qt4.7.0includeldflags =-le:qt4.7.0lib-lqtcore4-lqtgui4-lqtmai

When using vs to develop a QT program, sometimes users do not want to see the image resources used by the program. In this case, you can package resources into the program. Create a qrc resource file and write the path to the image resource you are using. In the following code, IMG is a folder. Use the RCC tool to convert resources into binary files, store them in. H files, and copy them to the source code directory. The following code generates

HDFs DFS -cat URI: Viewing the contents of a file HDFs dfs-cat HDFs Dfs-cat hdfs://mycluster/user/root/rcc1 HDFs dfs-cat file:///usr/hdp/2.4.2.0-258/hadoop/bin/RCC -ls return Format: Permissions number_of_replicas userid groupid filesize modification_ Date modification_time filename[Email protected] ~]#HDFs Dfs-lsfound4itemsdrwx-------Root HDFs0 .- the- on +:xx

Although in the PC machine, the serial line is becoming far away, but in the embedded field, the serial port can still be said to be the zenith, because it is inexpensive, and programming is also more convenient, in no display or input equipment system, serial port is indispensable, and HyperTerminal together to solve the information display and input problems. After these days of efforts, the CORTEX-M3 platform of the. Net Micro framework of the Nativesample porting work will be a paragraph, c

) 0xFFFEFFFF); static const UINT32 Cr_hseon_set = ((UINT32) 0x00010000); static const UINT32 Cr_hsitrim_mask = ((UINT32) 0xffffff07); /****/volatile UINT32 cfgr; static const UINT32 CFGR_SYSCLK_DIV1 = ((UINT32) 0x00000000); static const UINT32 CFGR_SYSCLK_DIV2 = ((UINT32) 0x00000080); static const UINT32 CFGR_SYSCLK_DIV4 = ((UINT32) 0x00000090); static const UINT32 CFGR_SYSCLK_DIV8 = ((UINT32) 0x000000a0); static const UINT32 CFGR_SYSCLK_DIV16 = ((UINT32) 0x000000b0); static const UINT32

Linux prompts "Libc.so.6:version ' glibc_2.14 ' not Found" system's GLIBC version is too low 0. The following is operated on the system CentOS 6.3 x86_64 1. An attempt was made to run the program, prompting "Libc.so.6:version ' glibc_2.14 ' not found" because the GLIBC version of the system was too low and the software was compiled with a higher version of GLIBC caused by: [LINUXIDC@LINUXIDC bin]$ pwd /var/vmdisks/cross/mingw32/bin [LINUXIDC@LINUXIDC bin]$ ls lrelease qtcore4.dll qtnetwor