STM32 MCUs Products

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STM32F100 RTC Wake From Standby is always 1 Second Late

Hello,I use STM32F100RBT. I want to enter STANDBY mode and exit every second.It works well, except for one issue: it always wakes up 1 second later.I run the following code, where I get the current time, print it and set an alarm for the next second ...

ISeed by Senior
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Privilege for Interrupts

Hi, I want to deactivate all interrupts during a short period. I'm using __disable_irq();however, it says, that this can only be used in privilege mode. If I use this function my board crashes. I want to look up the privilege level, but the RM at pag...

SPI Master NSS always low in STM32F4

Posted on March 03, 2017 at 12:34Hi guys!I'm configuring the Nucleo 64 with the STM32F446RE to use SPI as a Master.The problem I'm having right now is that the NSS pin is always low. Clock and MOSI are perfect. What I would like is that the NSS is h...

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programming for STM32F302VB.

hi STM,i have STM32F303E-eval board which can me mapped to STM32F302VB mcu i/o lines.how to validate STM32F302VB source code using STM32F303E-eval board.please give inputs.regards,roushan kumar

Resolved! DMA cannot read SPI Data Register while Debuging in STM32F745

Dear All,I faced a problem and I would like to issue a note for other developers. If it is a hardware bug in microcontroller, it may also be helpful for ST developers to fix it for a later revision. Let me explain what I faced in detail. (While tryin...

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TA1 by Associate III
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Supply external analog circuitry with AVDD?

So, I'm trying to integrate on a Test JIG a NUCLEO-144 with STM32F746ZG on board.It should be possible to draw some current since AVDD (CN10 pin1) is connected through a ferrite bead to the +3.3V (and in the user manual is written that the +3.3V can ...

Kepler by Associate
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