STM32 MCUs Products
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Resolved! Reference manual RM0008 for STM32F107xx outdated or wrong?
The STM32F107Vx has 2 CAN interfaces.In the TRM RM0008 Rev 21 dated February 2021 on page 115 I can only find one entry to enable the CAN clock, bit 25. What CAN clock does this bit enable? CAN1, CAN2 or both? Or does the reserved bit 26 enable CAN2 ...
STM32L431CCU6TR PB8 pin clamped to 0.68V with VDD = 0V
Hi, I'm using an STM32L431CCU6TR in a low power application, which uses a system basis chip to control the voltage rails to the system. After a predetermined timeout period, the SBC cuts VDD from the STM32, and can only be woken by an external influ...
Bizarre bootloader invocation every other debug session
I'm experiencing a very, very strange behavior when running debug sessions in STM32CubeIDE. Sequential sessions alternate between correct execution of my main() entry point (and execution stops there, as expected) and unexpected entry into the bootlo...
Resolved! STM32F407 decoupling capacitor 100nf or 10nf
The power supply scheme indicates to use 100nf for vref and vdd, but in the General PCB design guildines section (Figure 51 and 52) indicates that 10nf power decoupling capacitor should be placed. I am confused which capacitor is suggested for adc de...
Resolved! JTAG STM32H757XIH6
should the pullups on JTAG should be given for JTAG in STM32H757XIH6, also are there any extra consideration taken care while using ARM JTAG. If pullup is not necessary, why is it so.
STM32L496 Sleep & Wakeup
Split from:https://community.st.com/t5/stm32-mcus-products/is-is-possible-to-wakeup-the-stm32l496-with-an-external/td-p/741267as this is a new question.Hello @STTwo-32 as the wake up pin associated with stm32L496 is SYSWKUP2 can i use this and on cli...
STM32G030 RTC LSE clock instability
I tried to use internal RTC with LSE clocking in device which has GSM/GPRS module (GSM part decoupled from MCU part by ferrite beads in power lines and resistors in data lines). In first PCB revision (no separate ground region under crystal) I notice...
Resolved! STM32N657 - eMMC issue
Hello,Our board has an STM32N657 MCU connected to an IS21S08GA eMMC.We use an 8-bit bus, and SDMMC1 is configured to run at 32 MHz.In polling mode, read/write operations work, but are very slow — it takes about 1–2 ms to read or write a single block ...
Resolved! ST-Link not properly resetting STM32
Hi,I am trying to solve a strange programming related problem I am now having after updating the reset circuit of my STM32F439-based board. Below is a comparison between my old and my new circuit:The reason I made these changes is because this is a l...
