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Hi ST expertI'm ready to use STM32G473CBUx now. According to the datasheet, the STM32G473CBUx does not have an analog ground VSSA, only a ground VSS. I have questions:1. The analog input of the internal ADC/DAC is referenced to the chip's VSS, or has...
Hello everyone! Recently, I have been developing a firmware product based on STM32H750, using FreeRTOS and LwIP. Because the application scenarios for this product frequently involve large volumes of broadcase messages, while the product's own commu...
I am implementing a system with two STM32H753 microcontrollers. MCU1 reads ADC data and sends it over UART to MCU2 using UART DMA on ADC conversion. MCU2 reads data from UART via DMA and is supposed to do some filtering (among other things) to the re...
Hello, We're working on a custom board for the STM32H750IBX. Our boards arrived. The first time, the chip was installed poorly and shorted out. We assembled a new board at the SMT factory with the new chip, but we still can't connect to the chip to p...
Hello,in Application Note AN6228 it is stated, that it is possible to perform write-operations on the external flash while running code in memory-mapped mode (Execute-In-Place XIP) on the same external flash memory (on a different bank).See:https://w...
I am using the NUCLEO-L433RC-P with the blue top switch (pin PC13) configured as a wake pin.When the switch is pressed, the MCU should wake, then turn the LED on, then shutdown.But for some reason the MCU wakes twice as observed by the following beha...
I have set PA3 pin as input with pull up mode. But testing this pin by multimeter I get high impendance state (0.5V) on it. Must be 3.3V (logical 1). I use stm32F417ZGT6.
I'm using the STM32H7B3.ADC configuration: Sample time : ~2usLL_ADC_SAMPLINGTIME_64CYCLES_5 Calibrations: HAL_ADCEx_LinearCalibration_FactorLoad(adc2)HAL_ADCEx_Calibration_Start(adc2, ADC_CALIB_OFFSET, ADC_SINGLE_ENDED)Observations:The ADC counts se...
I'm working on a custom board using an STM32H743IIT6. In general, the board is working, but I'm running into an issue with the RTC. The RTC is running accurately, but when I reset the board, the RTC resets. This happens even if I just terminate and r...
I'm using a NUCLEO-L4A6ZG board with the STM32L4A6ZG MCU. My project uses the microSD connector for serial communication with a computerThe microSD connector uses lpuart1. I use uart_irq_callback_user_data_set to install a callback for received data....
