您好： 我现在使用的RTL8211E-VB的PHY芯片，，PHY芯片的数据手册中明确表示了，ETH_TX_CLK信号是需要由单片机产生。如下图所示： 而STM32H743VGT6单片机在HAL_ETH_Init函数中会在下面这段代码中返回错误： /* Wait for software reset */ while (READ_BIT(heth->Instance->DMAMR, ETH_DMAMR_SWR) > 0U) { if (((HAL_GetTi...
hello all;i wondered if there are good guidelines for power consumption vs. clock, and, how low can the processor clock run? complex, i think, especiallly if one needs to run certain peripherals like ADC, or i2c... thanks!
Hello, ST expertE.g. GPIO PD4 functions as falling edge interrupt pin on STM32F407. Before the falling edge this interrupt is disabled by HAL_NVIC_DisableIRQ(EXTI4_IRQn). What happened if HAL_NVIC_EnableIRQ(EXTI4_IRQn) is executed after the falling ...
Hello I am having an weird issue and was hoping if someone could provide some guidance. Hardware : Two Stm32 H7 with CAN TranscieverNvidia OrinCan Adapter/Sniffer (Canable) What works : Stm32H7 to Stm32H7 Nucleo Board Can Bus works.Nvidia Orin < - >...
Hi all,I'm working with STM32F4 discovery board, and I'd like to know if I can use one timer with interrupt to capture multiple time.For example I'd like to use TIM16, and be able to check 4 times : 150ms, 250ms, 500ms and 1000ms is it possible? Afte...
Hello ST Community,I am currently working on a project using an STM32 microcontroller, where I have implemented a feature to transmit the current date and time over USB when a user button is pressed. The USB transmission is handled using the CDC cla...
Hello,I have seven ADC channels in my design. I have probed these channels and can confirm from an analog standpoint the signals are clean, and are stable when read from using the ADC. I have read from each channel and received expected values, howe...
Hello, The cpu is STM32G0B1. I am developing the interrupt-based UART driver using FIFO and software circular buffers. The main point is, that I don't fully understand the mechanism of interrupts. I enabled two interrupts in CR3 register using RXFTIE...
What I am trying to accomplish:I have a old dimmer rack that is used just for decoration but is also a really cool piece of film history. As a project to learn more about embedded development I wanted to make it more interesting to look at. It has ni...
I am using CMSIS for STM32F446RET6 (clock speed at 180 MHz) to drive Nokia5110 LCD Module via SPI1. But, this program doesn't work. When I test with STM32F103C8T6 (using CMSIS and Clock speed 72 MHz), Nokia5110 work well. Please help me. How to corre...
