怎么挣钱最快

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STM32单片机寄存器的位置是如何定义的

一直都是用STM32做项目中的主控芯片,在编程的时候,之前一直忽视了一个问题,那就是寄存器的位置是如何定义的,为什么用一个USART1-》CR操作就能够给这个CR寄存器赋值?其实这是一个比较底层的问题,不懂这方面的知识也并不影响使用STM32,因为底层的定义工作,厂家一般都会做好,但是多了解一点原理性的东西,对自己还是很有帮助的。

ZHEILIWOJIUYISTM32F407DEUSARTJICUNQIWEILI,JIESHAOYIXIASTCHANGJIASHIRUHEZUOJICUNQIDINGYIDE。

 

怎么挣钱最快SHOUXIANZAIstm32f4xx.hZHONG

typedefstruct

{

__IOuint16_tSR;/*!

uint16_tRESERVED0;/*!

__IOuint16_tDR;/*!

uint16_tRESERVED1;/*!

__IOuint16_tBRR;/*!

uint16_tRESERVED2;/*!

__IOuint16_tCR1;/*!

怎么挣钱最快uint16_tRESERVED3;/*!

怎么挣钱最快__IOuint16_tCR2;/*!

uint16_tRESERVED4;/*!

__IOuint16_tCR3;/*!

怎么挣钱最快uint16_tRESERVED5;/*!

 

怎么挣钱最快__IOuint16_tGTPR;/*!

uint16_tRESERVED6;/*!

}USART_TypeDef;

怎么挣钱最快ZHEISHIYINWEIUSARTDEJICUNQIZUBAOKUOSR,DR,BRR,CR1,CR2,CR3,GPTRZHEIJIGEJICUNQI,SUOYIYONGYIGEUSART_TypeDefJIEGOUTIBAOHANZHEIXIEJICUNQI。RUGUOZAIBIEDECHENGXUZHONGYONGDAOZHEIXIEJICUNQI,ZHIXUYAORUXIA:

怎么挣钱最快USART_TypeDefUSART1//RENYIQUMING,JINLIANGYUDatasheetZHONGJICHUDEMINGZIYIZHIBIANYULIJIE

USART1.SR=0x00000001;

HUOZHE

USART_TypeDef*USART1

怎么挣钱最快USART1-》SR=0x00000001;

(*USART1).SR=0x00000011;

NEIMEJUTIDAOGEGEJICUNQIDEWEIZHIDAODISHIZENYANGDENI?CONGDatasheetHEreference manualZHONGKEYIKANDAO

USART2SHUYUAPB1GUANLIDEWAISHE,QISHIDIZHISHI0x4000 4400,STM32SHANGSUOYOUDEWAISHEDEJIDIZHIDOUSHI0x4000 0000(ZHEIQISHISHIARMGONGSIGUIDINGDE),ZHEIYESHIAPB1DEQISHIDIZHI,RANHOUUSART2DEQISHIDIZHIZAIAPB1WAISHEJIDIZHIDEJICHUSHANGPIANYI0x4400,YUSHIBIANKEYIANZHAOXIAMIANDAIMALAIFENPEIGEGEWAISHEDEQISHIDIZHILE

怎么挣钱最快#definePERIPH_BASE((uint32_t)0x40000000)

/*!

/*!

怎么挣钱最快#defineAPB1PERIPH_BASEPERIPH_BASE

怎么挣钱最快#defineUSART2_BASE(APB1PERIPH_BASE+0x4400)

#defineUSART3_BASE(APB1PERIPH_BASE+0x4800)

怎么挣钱最快#defineUART4_BASE(APB1PERIPH_BASE+0x4C00)

#defineUART5_BASE(APB1PERIPH_BASE+0x5000)

#defineUSART2((USART_TypeDef*)USART2_BASE)

怎么挣钱最快#defineUSART3((USART_TypeDef*)USART3_BASE)

怎么挣钱最快#defineUART4((USART_TypeDef*)UART4_BASE)

#defineUART5((USART_TypeDef*)UART5_BASE)

怎么挣钱最快YOULEZHEIXIEWAISHEDEJIDIZHI,JIASHANGSHANGMIANTIDAODEJICUNQIJIEGOUTI,BIANKEYICAOZUOGEGEJICUNQILE,LIRU,ZHIXUYAORUXIAYUJU,BIANKEYISHINENGUSART2

USART_Cmd(USART2,ENABLE);

USART_CmdZHEISHISTGUANFANGJICHUDEKUHANSHU,JUTIDINGYIRUXIA

怎么挣钱最快voidUSART_Cmd(USART_TypeDef*USARTx,FunctionalStateNewState)

{

怎么挣钱最快/*Checktheparameters*/

assert_param(IS_USART_ALL_PERIPH(USARTx));

怎么挣钱最快assert_param(IS_FUNCTIONAL_STATE(NewState));

if(NewState!=DISABLE)

{

怎么挣钱最快/*EnabletheselectedUSARTbysetTIngtheUEbiTIntheCR1register*/

USARTx-》CR1|=USART_CR1_UE;

}

else

{

怎么挣钱最快/*DisabletheselectedUSARTbyclearingtheUEbiTIntheCR1register*/

USARTx-》CR1&=(uint16_t)~((uint16_t)USART_CR1_UE);

}

}

怎么挣钱最快RUGUOLIJIELESHANGSHUSUOJIANGDENEIRONG,NIHUIFAXIAN,ZHEIZHONGTONGGUOJIEGOUTIDINGYIJICUNQIDEFANGFAFEICHANGCHANGJIAN,ZHEISHIYINWEIXIANZAIDECHULIQI,GEZHONGJICUNQIXIANGDANGDUO(CHENGBAISHANGQIAN),RUGUOANZHAOCHUANTONGDEDINGYIFANGFAQUCAOZUOJICUNQI,HUIXIANGDANGDEMAFAN。BUZHISHISTM32,WOZHIDAODEYOUTIDEC2000XILIEDSP,NXPDEARMXILIEMCU,RUISADEARM R4 RZ/T1CHULIQIDOUSHIANZHEIYANGDEFANGFALAIDINGYIJICUNQI。(ZHUANZIDIANZICHANPINSHIJIE)