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体冗余协议(MRP),链路层发现协议(LLDP)和简单网络管理协议(SNMP) 您的......
同场景中从PSE分配给PD的功率级别,并提供准确的实时功率遥测报告。MAX5996C的LLDP引脚可以从系统微控制器读取功率/电流限制配置,并覆盖分级过程中的功率/电流限制。 MAX5996A......
仪表板 ●   N-RingTM ●   端口镜像 ●   电缆诊断 ●   STP/RSTP/MSTP ●   IGMP v1/v2/v3 ●   SNMP v1/v2/v3 ●   NTP、LLDP和LACP......
USART_InitStructure;//′®¿ú3õê¼»ˉ½á11ìå   /* Enable the USART2 Pins Software Remapping......
--target=arm-armv6-linux --enable-armv6 --enable-armvfp --enable-static--prefix=/home/mplayer  --disable......
RTC_AlarmStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR,ENABLE); PWR_BackupAccessCmd(ENABLE......
; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE ); RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1......
时钟命令为:   RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE );   其他几个则挂在APB1上,如2口:   RCC_APB1PeriphClockCmd......
ffmpeg-0.5 2.配置编译选项 #./configure --cross-prefix=/usr/local/arm/3.4.1/bin/arm-linux- --enable-cross......
的时钟 */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE); RCC_APB2PeriphClockCmd......
reset(for debug purpose) */   RCC_DeInit();   /* Enable HSE */   RCC_HSEConfig(RCC_HSE_ON);   /* Wait......
STM32如何配置ADC?;1、 系统时钟定义: RCC_Configuration(); 包涵: RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMAx, ENABLE......
----------------------------------------------*/ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); DMA_DeInit(DMA1_Channel1); //DMA重新......
());//输出此时的秒数 RTC_ClearITPendingBit(RTC_IT_ALR); PWR_BackupAccessCmd(ENABLE); RTC_EnterConfigMode......
(RCC_APB1Periph_TIM3, ENABLE); (2)定义相应的GPIO: /* PA2,3,4,5,6输出-》Key_Up,Key_Down,Key_Left,Key_Right,Key_Ctrl......
;     RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);     GPIO_InitStructure.GPIO_Pin = 0x00ff......
USART_InitStructure;   //开启外部时钟   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO,  ENABLE......
;   //开启外部时钟   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO,   ENABLE......
(RCC_AHB1Periph_GPIOE,ENABLE);   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;   GPIO_InitStructure.GPIO_OType......
●NTP、LLDP和LACP ●快速启动(流量在20秒内通过) ●良好的抗振动和抗冲击性能 ●多项合规认证,包括:产品安全性:(UL/CUL......
定时器相对于通用定时器,多了TIM_CtrlPWMOutputs(TIM8, ENABLE); TIM1产生四路PWM程序: staticvoidTIM1_GPIO_Config(void......
;      I2C_InitTypeDef   I2C_InitStructure;        /* Enable GPIOB clock */      RCC_APB2PeriphClockCmd......
(for debug purpose) */   RCC_DeInit();   /* Enable HSE */   RCC_HSEConfig(RCC_HSE_ON);   /* Wait till HSE......
|RCC_APB2Periph_GPIOC,ENABLE);   RCC_ADCCLKConfig(RCC_PCLK2_Div6);   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1......
器重设为缺省值 RCC_DeInit(); //内部晶振使能 RCC_HSICmd(ENABLE); //等待工作稳定 while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY)==RESET); //LSI的启......
; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE......
(RCC_APB2Periph_GPIOB, ENABLE);   RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1 , ENABLE);   2)GPIO 配置......
; RCC_AHB1PeriphClockCmd(Open_USART_TX_GPIO_CLK,ENABLE); RCC_AHB1PeriphClockCmd(Open_USART_RX_GPIO_CLK......
制出来,如下:./configure --cross-prefix=arm-linux- --enable-cross-compile --target-os=linux --cc=arm-linux......
) {   GPIO_InitTypeDef  GPIO_InitStruct;   //使能GPIOE组时钟   RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE, ENABLE......
    RCC_AHB1PeriphClockCmd(RHEOSTAT_ADC_GPIO_CLK, ENABLE);              // 配置 IO......
GPIO_InitStructure; SPI_InitTypeDef SPI_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE......
peripheral */ SPI_Cmd(SPI2, DISABLE); /* Enable SCK, MOSI, MISO and NSS GPIO clocks......
; RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA,ENABLE); //使能USART1,GPIOA时钟 RCC_AHBPeriphClockCmd......
信号 //打开DMA SPI_I2S_DMACmd(SPI1, SPI_I2S_DMAReq_Rx, ENABLE); SPI_I2S_DMACmd(SPI1, SPI_I2S_DMAReq_Tx......
| USART_Mode_Tx;   /* Configure USART1 */   USART_Init(USART1, &USART_InitStructure);   /* Enable......
FunctionalState ADC_ScanConvMode;//规定了模数转换工作在扫描模式还是单次模式,参数可以是ENABLE和DISENABLE FunctionalState......
| RCC_APB2Periph_AFIO,,ENABLE);//使能GPIOA时钟 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE); //nvic NVIC_......
(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE); 串口2的模块时钟寄存器:RCC_APB1Periph_USART2; 串口2的端口是PA2,PA3;对应......
GPIO_InitStructure; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); //打开DMA1的时......
) { GPIO_InitTypeDef GPIO_InitStructure; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); //打开DMA1的时......
; DMA_InitTypeDefDMA_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA,ENABLE);//使能USART1,GPIOA时钟......
(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO|RCC_APB2Periph_USART1 ,ENABLE);   或直接   RCC_APB2PeriphClockCmd......
手册的使用方法: 1. Enable peripheral clock 2. Enable SCK, MOSI, MISO and NSS GPIO clocks 3. Peripherals......
);------------------------------------ ; Enable VFP via Coprocessor Access Control Register......
) {         GPIO_InitTypeDef GPIO_InitStruct;          RCC_GPIO_ClockCmd(GPIOB, ENABLE......
初始化函数 EXTI_InitTypeDefEXTI_InitStruct; RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOC,ENABLE......
) { FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //Enable Prefetch Buffer FLASH_SetLatency......
TIM_OCInitStructure;   RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //使能定时器3时钟   RCC_APB2PeriphClockCmd......
。同时设置重映射。   RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);   GPIO_PinRemapConfig......

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