上升沿和下降沿都触发:对SET_RIS_TRIG和SET_FAL_TRIG寄存器相关bit置1; 不触发(禁用GPIO中断触发):对CLR_FLA_TRIG和CLR_RIS_TRIG寄存器相关bit置1。 >> 配置GPIO中断的一般步骤: 使能GPIO PSC电源; 配置GPIO引脚复用(PINMUX); 配置GPIO为输入方向(DIR); 配置GPIO触发方式
voidSetGpioDirection(intpin,intdirection){// 设置 GPIO 引脚方向if(GpioSetDir(pin,direction)!=0){printf("Failed to set GPIO pin direction\n");}} 1. 2. 3. 4. 5. 6. GpioSetDir(pin, direction):将特定 GPIO 引脚设置为输入或输出,pin表示引脚编号,direction指定方向(0 表示输入,1 表示输出)...
确定过GPIO8 的PIN没有搞错,在main函数中while(1){ readGPIO8 IN_DATA,set it to GPIO12(DBG RED LED),示波器显示波形和输入同步。 7.实在是没办法了,就使用官方提供的K2_STK_DSP_v1.1/GPIO 的例子,使用的Combine Interrupt,我自己的直接把GPIO8映射到DSP INT4,把MCSDK 改成ProcesserSDK,...
Time after time I get the same error messages, that I'm making undefined referrences to various GPIO functions, like GPIOSetDir and GPIOSetValue. Is there a workaround that avoids this formalism? Some sort of expression that will allow me to toggle I/O lines w/o the need of libraries...
LPC17xx固件库中 STATIC INLINE void Chip_GPIO_SetPinDIRInput(LPC_GPIO_T *pGPIO, uint8_t port, uint8_t pin) { pGPIO[port].DIR &= ~(1UL << pin); } 形参port代表的是什么?是GPIO0 GPIO1 GPIO2 么?Options 08-18-2017 02:07 AM 1,276 Views 余骁鑫 Co...
百度试题 结果1 题目在LPC1768微控制器中控制GPIO输出高电平的寄存器是:( ) A. FIODIR B. FIOPIN C. FIOSET D. PINSEL1 相关知识点: 试题来源: 解析 C 满分:5 分 正确答案:C反馈 收藏
二、gpio子系统API函数 对于驱动开发人员,设置好设备树以后就可以使用 gpio 子系统提供的 API 函数来操作指定的 GPIO,gpio 子系统向驱动开发人员屏蔽了具体的读写寄存器过程。这就是驱动分层与分离的好处,大家各司其职,做好自己的本职工作即可。gpio 子系统提供的常用的 API 函数有下面几个: ...
Time after time I get the same error messages, that I'm making undefined referrences to various GPIO functions, like GPIOSetDir and GPIOSetValue. Is there a workaround that avoids this formalism? Some sort of expression that will allow me to toggle I/O lines w/o the need of libraries...
Time after time I get the same error messages, that I'm making undefined referrences to various GPIO functions, like GPIOSetDir and GPIOSetValue. Is there a workaround that avoids this formalism? Some sort of expression that will allow me to toggle I/O lines w/o the need of libraries...
Time after time I get the same error messages, that I'm making undefined referrences to various GPIO functions, like GPIOSetDir and GPIOSetValue. Is there a workaround that avoids this formalism? Some sort of expression that will allow me to toggle I/O lines w/o the need of libraries...