为了允许访问备份寄存器和RTC,电源控制寄存器(PWR_CR)的DBP 位必须置为( )A.1B.0C.2D.3的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学习的生产力工具
设置RCC_APB1ENR 的 PWREN 和 BKPEN,使能 PWR 和 BKP 时钟 设置PWR_CR 的 DBP,使能对 BKP 和 RTC 的访问 若在读取 RTC 寄存器时,RTC 的 APB1 接口曾经处于禁止状态,则软件首先必须等待 RTC_CRL 寄存器中的 RSF 位(寄存器同步标志)被硬件置 1 必须设置 RTC_CRL 寄存器中的 CNF 位,使 RTC 进入配置模...
voidBackup_SRAM_Write_Reg(void*backup_reg,void*source_reg,uint8_treg_size){uint8_ti=0;PWR_BackupAccessCmd(ENABLE);// set PWR->CR.dbp = 1;PWR_BackupRegulatorCmd(ENABLE);// set PWR->CSR.bre = 1;for(i=0;i<reg_size;i++) { *((uint8_t*)backup_reg+i)=*((uint8_t*)source_...
CR_DBP_BB位带地址对应实际的电源控制寄存器PWR_CR的DBP,即第8位,对该地址写1就达到将DBP至1的效果,也就是(__IO uint32_t ) CR_DBP_BB = (uint32_t) NewState 函数的任务(NewState为ENABLE时为1,NewState为DISABLE时为0)。 至于电源控制寄存器PWR_CR的DBP的位带地址0x4215E020如何求证,就不要纠结了...
#defineCR_OFFSET(PWR_OFFSET+0x00) 【3】DBP位在CR内的位置: #define DBP_BitNumber 0x08 [结果]&CR_DBP_BB = 0x420E 0020。意义:使能或失能RTC和后备寄存器访问。 14.2.3 函数PWR_PVDCmd Table 325. 函数PWR_PVDCmd 函数名 PWR_PVDCmd
General Electric CR174DBP1E5 General Electric 244741 General Electric CR306C000LBA General Electric 44A717162-01 General Electric IC640MWS902A General Electric 44A719224-001 General Electric IC600BF944K General Electric IC609TUC100 General Electric IC3600A0AC1C Circuit Board - Used GENERAL ELECTRIC...
6SE6400-DBP00-0AA0 6ES7138-4FA04-0AB0 6SE6440-2UD21-1AA1 6SL3055-0AA00-4BA0 6AV6643-0BA01-1AX0 6EP1311-1SH03 6ES7343-1EX30-0XE0 6ES7414-3XM05-0AB0 6ES7952-1KK00-0AA0 6ES5955-3LC14 6ES5955-3LC42 6AV6644-0AA01-2AX0
SN65HVD01DRCR、SN65C3221IPWRG4Q1、SN65ALS180DRG4、MAX3243EIPWRG4、SN65176BP、SN55976A1WD、SN65C1167NSRG4、MAX3386ECPW、MC1489NE4、SN65C3221PWR、SN65EL16DR、SN65C3238DWR、SN65C3238PWR、SN65C3222EPWRG4、OPA2670IRGVT、SN65HVD06D、MC3487NE4、OPA2670IRGVR、SN55LVDS31W、MAX3243I...
General Electric CR174DBP1E5 General Electric 244741 General Electric CR306C000LBA General Electric 44A717162-01 General Electric IC640MWS902A General Electric 44A719224-001 General Electric 531X111PSHAFG2 MFC/Power Supply Card - Refurbished GENERAL ELECTRIC TJK-636600 USPP TJK636600 GENERAL ELECTRIC...
General Electric CR174DBP3E1 (Pack of 6) Photoelectric Switch - New, No Box GENERAL ELECTRIC GLSD6 USPP GLSD6 General Electric IC600YB923 GENERAL ELECTRIC THN3364 NSFP THN3364 General Electric THED136070 Circuit Breaker GENERAL ELECTRIC AQF1121AB USPP AQF1121AB GENERAL ELECTRIC PWB68...