I'm trying to set my MMC into sleep state when not using it. After setting it into standby mode and sending the CMD5 with the 15bit set to 1, the card goes into idle state and it's missing from theHAL_MMC_CardStateTypeDefvalues, it would be nice to have it declared there. The ...
GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) 该函数的作用是什么 A.设置某个 IO 口的电平B.读取 某个 IO 口的电平状态C.翻转某个 IO 口的电平D.将某个 IO 口的电平拉低相关知识点: 试题来源: 解析 B