I enable the GPIO4_IO27 to GPIO input pull-up by dts. But it always keep input pull-down. Did you have any suggestion for this about the gpio input pull-up setting? Thank a lot! cat /sys/kernel/debug/gpio gpio-
GPIO Bare metal drivers for stm32 f4 family of microcontrollers written in C from scratch .The driver allows user to configure the gpio pins of stm32 microcontroller in Input Mode , Output mode , Alternate function mode , interrupt mode and configure int
D端口GPIOPinTypeGPIOOutputGPIOPORTDBASEGPIOPIN12设置PD0为输入类型forwordGPIOPinWriteGPIOPORTDBASEGPIOPIN0x00PD0输出低电平IRcodeswitchIRcodecase00000101SysCtlPeripheralEnableSYSCTLPERIPHGPIOD使能GPIOD端口GPIOPinTypeGPIOOutputGPIOPORTDBASEGPIOPIN设置PD0为输入类型forwordGPIOPinWriteGPIOPORTDBASEGPIOPIN0x00PD0输出低...