NUCLEO-H7A3ZI-Q配置RCC出问题
STM32F407 USB的IN端点只能是0x81么?
【NUCLEO-H7A3ZI-Q体验&应用】开篇
STM32H743 ADC可采集正弦波的最大频率
stm32h743iit6 新丝印是真的吗
STM32H750的DFU模式进入失败
请问STM32H747XIH6和ST32H747XIH6U有什么区别?
求技术解答,STM32H723的USB模拟U盘应用过程遇到了问题。
请问一下,我的nucleo板子连接usb线,找不到target,一直无法下载程序怎么回事呢?
H743内置双bank flash 并行处理异常问题
OTG模块的DM DP支持软件动态配置上下拉。
DP/DM integrated pull-up and pull-down resistors controlled by the OTG_HS core
depending on the current role of the device. As a peripheral, it enables the DP pull-up
resistor to signal full-speed peripheral connections as soon as VBUS is sensed to be at
a valid level (B-session valid). In host mode, pull-down resistors are enabled on both
DP/DM. Pull-up and pull-down resistors are dynamically switched when the peripheral
role is changed via the host negotiation protocol (HNP).
请问是不是使用内部的usb控制器就可以内部上下拉,使用外部的还是要自己加上下拉电路