[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fRdKkPquRiScM1Z8T33BknT0hvsZbGaK0p3h-Fl3BeUk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-10-16 15:08:10",100138887,[8,9,10,11],"每一个I\u002FO引脚都具备中断功能","大部分I\u002FO引脚具备5V容限","I\u002FO引脚具备复用功能,可以设置为片内外设的功能引脚","I\u002FO引脚的每一组端口都有16个引脚",{"courseId":13,"courseImg":14,"courseName":15},"fd3e9dbd10bc360458c6fe1741f1de2a","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Faf19df5015422f091e7e997590a2e482.jpg","嵌入式系统与设计-2022秋","对于STM32微控制器的GPIO模块描述中,哪一种说法不正确",[18,29,38,47,56,65,74,83,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],100138874,[22,23,24,25],"程序无法获得该引脚的电平","程序可以获得该引脚的状态","程序即可以干预该引脚的电平,也可以获得该引脚的外部状态","程序可以干预该引脚的电平","MCU内部程序定义MCU的一个引脚为GPIO输出,意味着","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],100138875,[33,34,35,36],"Pin","Mode","Pull","Period","下面不属于引脚初始化数据类型的成员变量是",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],100138878,[42,43,44,45],"01010100 | 11000101","01010100 | 11000100","01010100 & 11000100","01010100 & 11000101","有一个十进制数为84,其二进制为01010100,记位序号最右边为0,若想把其中从右边算起的第2、6、7位保留下来,其他位置零,下列哪项可以实现",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],100138880,[51,52,53,54],"HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_SET)","HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_13)","HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_RESET)","HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_13,GPIO_PIN_RESET)","如果要设置引脚PB13输出低电平,下面哪一个代码是正确的",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],100138881,[60,61,62,63],"只有中断这条运行路线","有两条运行路线:一条是中断线,一条是main函数线","仅main函数一条运行路线","应用程序可以实现自我调用","无操作系统下,关于嵌入式程序运行路线,下面描述正确的是",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],100138882,[69,70,71,72],"复用寄存器","输出数据寄存器","输出类型寄存器","模式寄存器","要设置引脚输出高电平,需要控制下列哪一个寄存器",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":27,"type":28},[],100138884,[78,79,80,81],"存放临时变量","存放静态变量","存放临时数组","存放中断向量表、程序代码、常数等","MCU的片内Flash主要功能是",{"answer":84,"createTime":5,"id":6,"options":85,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],100138888,[90,91,92,93],"仙童公司","IBM","Intel","Motorola","世界上最早先推出第一台单片微型计算机的是哪家公司",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],100138891,[99,100,101,102],"程序和变量","变量","程序","常量","MCU中,RAM通常用于存放"]