GPIO的功能,简单说就是可以根据自己的需要去配置为输入或输出。但是在配置GPIO管脚的时候,常会见到两种模式:开漏(open-drain,漏极开路)和推挽(push-pull)。 2018-01-05 15:31:38 什么是浮动输入和开漏输出 一些微控制器输出可以设置为开漏(或者只能设置为开漏)。开漏输出只能被驱动为低电平,而不能被驱动为高...
GPIO的功能,简单说就是可以根据自己的需要去配置为输入或输出。但是在配置GPIO管脚的时候,常会见到两种模式:开漏(open-drain,漏极开路)和推挽(push-pull)。 2018-01-05 15:31:38 准双向口、开漏输出、推挽输出结构介绍 准双向口、开漏输出、推挽输出结构介绍1. 准双向口结构准双向口,也就是说不是真正的双向...
2、RTC时钟输出 GPIO 模式设置 (1VDD_FT is a potential specific to five-volt tolerant I/Os and different from VDD.To On-chip PeripheralsAnalogFrom On-chip Peripherals Push-Pull Open DrainOutput DriverI /O p i nVS SOn/OffP u l l -U pP u l l -D o w nVDD On/OffB i t S e t...
3.10 General-purpose inputs/outputs (GPIOs) Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as input (with or without pull-up or pull-down) or as peripheral alternate function (AF). Most of the GPIO pins are shared with special digital or ...
element clock tree control element clock line control line MSv47988V1 3.7 General-purpose inputs/outputs (GPIOs) Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as input (with or without pull-up or pull-down) or as peripheral alternate function....
32 IO如果配置为OD模式，外部加上拉电阻，这时就和准双向口是一样的。准双向口除了键盘扫描时有用，...
• Exit from Standby 3.8 General-purpose input/outputs (GPIOs) Each of the GPIO pins can be configured by software as output (push-pull or open-drain, with or without pull-up or pull-down), as input (floating, with or without pull-up or pull-down) or as peripheral alternate ...
GPIO General purpose I/Os HAL Hardware abstraction layer HCD USB Host Controller Driver I2C Inter-integrated circuit I2S Inter-integrated sound IRDA InfraRed Data Association IWDG Independent watchdog LCD Liquid Crystal Display Controler MSP MCU Specific Package NAND NAND Flash memory NOR Nor Flash ...
– 1x 12-bit DAC output channels, low-power sample and hold – 1x operational amplifier with built-in PGA – 2x ultra-low-power comparators – Accurate 2.5 V or 2.048 V reference voltage buffered output •16x communication interfaces – 1x SAI (serial audio interface) –4x I2C FM...
oscillator (typical frequency of 37 kHz) • The high-speed external clock 3.7 General-purpose inputs/outputs (GPIOs) Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as input (with or without pull-up or pull-down) or as peripheral alternate ...