Reset and clock control (RCC)
The clock configuration, control for each module of the clock signal on-off
The abbreviation of Peripheral (peripherals)
Clock, the Clock
The abbreviation of the Command (order)//the clock can make
Mode_Out_PP push-pull output
Mode_Out_OD open drain output
Pin_13 pin 13//need to how much pin to change the number
GPIO_init (GPIOC, & amp; GPIO_intStruct);//initialize
GPIO_SetBits//AL output high frequency electric
GPIO_ResetBits//the first electric AL output frequency
//lit LED lights program high and low frequency electric to play go?//
APB2 and APB1
APB2 is responsible for the AD, I/O, senior TIM, a serial port 1, operating in full speed (up to 72 MHZ),
APB1 responsible for DA, USB, SPI, I2C, CAN, a serial port 2345, ordinary TIM, operating speed is limited to 36 MHZ,
//GPIO belong to APB2 I/O port??
