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https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/812320/tm4c1294ncpdt-how-do-i-config-a-gpio-input-to-have-internal-weak-pull-up
我可以使用哪个函数将 GPIO 输入配置为具有内部弱上拉电阻？ 谢谢
使用 GPIOPadConfigSet()函数。 当引脚为输入时、输出强度无关紧要。 示例：
GPIOPadConfigSet (GPIO_PORTJ_BASE、GPIO_PIN_0、GPIO_Strength _2mA、GPIO_PIN_TYPE_STD_WPU)；
