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PD7输出高电平

user3770609
Intellectual 391 points


SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE,GPIO_PIN_7);

GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_7,0x80);

为什么这样设定PD7没高电平输出。    

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE,GPIO_PIN_1);

GPIOPinWrite(GPIO_PORTE_BASE,GPIO_PIN_1,0x01);

PE1有输出。