2023年9月5日 · USB LD7: green LED indicates when VBUS is present on CN5 and is connected to PA9 of the STM32F407VGT6. In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question. Solved: Hello everyone, I use stm32f4 discovery.

2022年8月29日 · LD7 (with net name LED1) is not connected to LAN8740. LED1/nINT/NPME/REGOFF is a pin name of the LAN8740 interface. Maybe what you are seeing blinking is LD8, because if PD3 is kept floating (not configured) T5 is in undefined state and might toggle for no reason.

2018年2月25日 · From the schematic in that document, it looks like you should be able to use LED LD1 on PI1 (GPIO port I pin 1). Download the STM32CubeF7 software package. It should include a blinky program example specifically for your board. Then see which LED/pin they use in the example program.

2019年3月27日 · On start-up, these are the LED's that I see, at the top is LD7, the green is LD6(power) and the bottom is LD4 (COM). So, what I think is happening is that the highlighted component which is a power safety switch has a fault output, that is an open drain, so when a fault condition is occurring it pulls that line to GND, which is why I see LD7.

2020年5月6日 · LD7 is on - USB LD7: green LED indicates when VBUS is present on CN5 and is connected to PA9 of the STM32F407VGT6. Here is the bottom showing no jumpers. Not sure what I am missing? Or could check? Thanks for any suggestions. Brent

2025年2月13日 · 把头文件全部添加路径后,直接下载程序,并将代码烧录到板子中去即可实现LED灯的循环亮灭! LED灯的亮灭一般就是来检测程序编写是否有问题或者作为一个判断标志使用,在工程项目中,可以留着LED的目录作为检测代码是否正确使用! 文章浏览阅读8.7k次，点赞12次，收 …

2022年12月6日 · ld7（网络名称为 led1）未连接到 lan8740。 LED1/nINT/NPME/REGOFF 是 LAN8740 接口的引脚名称。 也许您看到闪烁的是 LD8，因为如果 PD3 保持浮动（未配置），T5 处于未定义状态并且可能无故切换。

Based on STM32F407VG, it includes an ST-LINK/V2-A embedded debug tool, one ST-MEMS digital accelerometer, one digital microphone, one audio DAC with integrated class D speaker driver, LEDs, push-buttons and a USB OTG Micro-AB connector. Specialized add-on boards can be connected by means of the extension header connectors.

2022年6月22日 · 通过LED流水灯实验，介绍使用vivado软件开发 Xinlinx 黑金 FPGA 开发板（AX7A035 开发板、AX7A100 开发板、AX7A200 开发板）的基本流程，器件选择、设置、代码编写、编译、分配管脚、下载、程序FLASH固化、擦除等；同时也检验板上LED灯是否正常。

The STM32H7S78-DK Discovery kit includes a full range of hardware features that helps the user to evaluate many peripherals, such as USB Type-C®, Octo‐SPI flash memory and Hexadeca‐SPI PSRAM devices, audio codec, digital microphones, …