然后再添加Zynq PS的IP核,并进入到配置窗口。在PS-PL Configuration里勾选上FCLK_RESET0_N和M AXI GPIO interface。因为这里需要用到AXI GP总线,PS是MASTER。 在Clock Configuration里勾选上FCLK_CLK0 50MHz。其余配置可同EMIO配置一样。 配置完成后,点击Run Connection Automation和Run Block Automation,都勾选上...
目前gpio subsystem 提供了 2 套接口: legacy API:integer-based GPIO interface,形式为 gpio_xxx(),例如登录后复制void gpio_set_value(unsigned gpio, int value),不推荐使用该 API; 推荐API: descriptor-based GPIO interface,形式为 gpiod_xxx(),例如登录后复制void gpiod_set_value(struct gpio_desc *des...
T1-F Interface Configuration E&M Interface Configuration 3G Cellular Interface Configuration LTE Cellular Interface Configuration 5G Cellular Interface Configuration ISDN BRI Interface Configuration POS Interface Configuration CPOS Interface Configuration ADSL Interface Configuration VDSL Interface Configuration G.SHDSL...
瑞萨电子的单片机RX63N是通过被称为SCI(Serial Communication Interface,串行通信接口)的单元进行这些转换的。例如,使一个引脚对应1位 的char型变量进行信息交换的是并行通信(Parallel communication),而一个引脚以时分(time division)按每1位进行信息交换的就是串行通信(Serial Communication)。
首先:GPIO(或GPIO口)就是通用输入/输出端口,通俗地说,就是一些CPU的引脚,可以通过它们输出高低电平或者通过它们读入引脚的状态-是高电平或是低电平;就是0:1输入和输出。 而其中常用就有: GPIO_WriteBit:这个字面意思就是指定引脚的设置和清除。 GPIO_SetBits:就是设置指定引脚的数据端口。
->Debug GPIO calls->/sys/class/gpio/... (sysfsinterface) ->Memory mapped GPIO drivers->Port-mapped I/O GPIO drivers->I2C GPIO expanders->MFD GPIO expanders->SPI GPIO expanders->USB GPIO expanders ->GPIO Testing Driver 3 GPIO API ...
4. 中断 - (General Purpose Input/Output) is an interface that provides different working modes to meet various application requirements. It serves as a vital foundation for implementing electronic projects, and its versatility makes it indispensable for personal learning and experimentation. GPIO offers...
legacy API:integer-based GPIO interface,形式为 gpio_xxx(),例如 void gpio_set_value(unsigned gpio, int value),不推荐使用该 API; 推荐API: descriptor-based GPIO interface,形式为 gpiod_xxx(),例如 void gpiod_set_value(struct gpio_desc *desc, int value),新添加的驱动代码一律采用这套 API。 示...
2)SPI(Serial Peripheral Interface:串行外设接口);是一种标准的四线同步双向串行总线,SPI接口主要应用在 EEPROM,FLASH,实时时钟,AD转换器,还有数字信号处理器和数字信号解码器之间。SPI,是一种高速的,全双工,同步的通信总线,并且在芯片的管脚上只占用四根线,节约了芯片的管脚,同时为PCB的布局上节省空间,提供方便,...
GPIOHandle for character device New GPIO interface has beenintroducedrecently. It exposes GPIO interface as/dev/gpiochip0character device and provides severalioctl syscallsfor bulk operations on sets of GPIO pins. Ingpiodev/src/gpioctl.cwe wrap the ioctl calls into C-functions suitable for later u...