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STM32G0 Custom Board NRST floating

Hello everyone ive been using STM32 microcontroller on custom boards for some while now, but particularly with the STM32G071G8 some boards are failing. After a few minutes, NRST seems to flicker and drop from 3V3 to 2,2, 1,7 and finally steady to aro...

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BKN636 by • Associate II
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  • 5 replies
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Resolved! State of GPIO after Watchdog Reset

Hello, I am using a STM32F401CE and would like to use the independent watchdog to cause a reset if the device would lock up for some reason. I have an external chip which is being controlled via GPIO and SPI from the STM32F401. When a watchdog rese...

JBlackann by • Associate III
  • 711 Views
  • 1 replies
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Hi Team, I'm using a STM32L4R5 and am wanting to store variables in SRAM2 as static variables so that they hold their value while the micro is in standby mode with SRAM2 retention enabled. What am I missing?

I've followed every tutorial/thread that i've been able to find but cannot get this to work. I've set: RAM2 (xrw) : ORIGIN = 0x20030000,  LENGTH = 64Kand .ram2_bss : { . = ALIGN(4); *(.ram2_bss) *(.ram2_bss*) } >RAM2In STM32L4R5ZITX_FLASH.ld and defi...

PLeij.1 by • Associate II
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  • 5 replies
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SDIO 4 bit DMA UNKNOWN PROBLEM

This is sd_command line via logic analyzer. I'm writing 1024 bytes every second. But sd_commend do like that. And that's problem for me. If i wanna save some datas. sd_command line spoilng and locking my stm32f411 mcu's. I need help i don't understan...

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Vyagl.1 by • Associate
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  • 1 replies
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Hi ST Micro Would like to buy production qtys of STM32F205VET7 for 3 of my designs, cannot wait another year for delivery. Is this semiconductor still being produced OR do I need to re-design around it please. Scott_Davidson@Trimble.com

Suitable drop in replacements:STM32F205VET7   /original 512 KBytes flash, -40-105CSTM32F205VFT7   /768 KBytes flash, -40-105CSTM32F205VGT7   /1024KBytes flash, -40-105C

SDavi.2 by • Associate
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  • 1 replies
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Could not set IWDG timeout to max (~32s) for STM32G031?

I am using Nucleo-G031K board and attempt to set IWDG timeout to max value of ~32s. Got hard fault. Here is the code. Any idea?  iwdg_hIwdg.Instance = IWDG; iwdg_hIwdg.Init.Prescaler = IWDG_PRESCALER_256; iwdg_hIwdg.Init.Window = IWDG_WINDOW_DISABLE;...

Ccui.1 by • Associate II
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  • 7 replies
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STM32F072RB in I2C slave mode

I am using STM as i2c slave. When other i2c master reads, first byte is always 0xFF and rest are correct data from STM with 1 byte shift so master needs to read 1 extra byte. Also I get HAL_I2C_ERROR_OVR error during that. Please suggest.

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