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I've been struggling with a strange ADC problem for a while, and have now made some interesting observations.The scenarioI'm using an STM32G474, where HRTIM directly controls a peltier driver for temperature regulation. Temperatures are measured by A...
Hi, I need to measure a 4.2V battery while my MCU's supply varies between 2.0V and 3.3V. Since VDDA is the ADC reference, raw ADC counts will drift as the supply changes. Is this the correct method? My plan: Feed the battery voltage through a 10K/7K5...
Hi everyone, We are encountering a XSPI Deadlock on our STM32H7S7-Discovery board (STM32H7S78-DK).To provide some context, our system is configured as follows: External FLASH: Connected to XSPI1. Swapped through XSPIM to port 2 and operates in memory...
Hi there, I have firmware that uses UART1 and UART2 of the STM32G4 series. Both are intended to run on interrupts, but as soon as any signal is received by the MCU, an error occurs, causing HAL_UART_AbortCpltCallback to be called. Therafter, the inte...
The STM32G031G8U6 in a UFQFPN28 package does not have PF0 / PF1 pins for HSE OSC_IN / OSC_OUT. It does however have OSC_IN on PC14. This is intended for an external CMOS oscillator in bypass mode.I’m currently in the schematic design stage. My boar...
I'm working with the STM32G4 series and using the backup registers to store time data that persists across power cycles. I have a question about VBAT brownout behavior that I cannot find explicitly documented in RM0440 or the datasheet.Background:Bot...
Hi!I'm building a device using a STM32U31xx, connected to a Network Chip via I²C (PB6/7) and 2 GPIOs for Reset and BOOT0 Pin. The intention is to have new firmware downloaded onto the network chip, and flash new firmware to the STM32U031 via the syst...
I am using the STM32U575CGU3 MCU in my project, where I transmit data using two CAN frames on the bus. I have configured a CAN transmission cycle time of 250 ms in my software. However, on a few PCB assemblies, I am observing inconsistencies in the ...
I am having an issue while trying to setup an I2C driver on my STM32F767ZI Nucleo board interfacing with an SHT31 and SGP40 I2C sensors. The code I am running first initializes the SHT31 with a write and read and then initializes the SGP40 with a wri...
I am a beginner in electronics. I recently designed a board using the STM32F407VGT6 and DP83848, but after assembly and testing, I encountered a problem. The board can be programmed and it runs, but the Ethernet section does not work properly. It d...
