STM32 MCUs Products

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STM32H750 SPI/SDIO affects ADC noise

Hi,So I have two layer board. I have SDIO connected to SD Card and another SPI to LCD. My board uses DC-DC (Recom 3.3V) for digital power and LD1117-3.3V for analog power and both with common ground plane. No digital lines cross analog lines. Actuall...

Duddie by Associate II
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  • 1 replies
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STM32F103 low density: missing flash size information?

Hello,we are using various STM32F103 derivatives in several products. So far, we never had any problems reading out the flash memory size from the factory-programmed register at 0x1FFFF7E0.Currently, we are using the STM32F103R4 device (photo attache...

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tilmann by Associate III
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  • 4 replies
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STM32L5 Low Power in Shutdown

I am working with a STM32L552ze on a nucleo-144 board and hoping to get to the lowest power consumption available for this processor. However currently I am at 450uA on the MCU power pin. When i first started i was at about .181uA. This is with the s...

chank.10 by Associate
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  • 2 replies
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compare two char arrays

Hi thereI am trying to compare two char arrays. one is char CODENUMBER[36]="06A9062F0020063406450627063106470200";and the other one is a 250 element array called char Rcv[250]in my code, I receive messages and I fill Rcv[]'s elements with those messa...

Ala by Senior
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  • 6 replies
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Resolved! How to power on a STM32H750VBTx bare chip?

Greetings,I made myself a 100-pin LQFP breakout board and soldered a STM32H750VBT6 to it. I connected all the Vss and all the Vdd. When I try to hook up SWDIO, SWCLK, 3.3V and GND from my ST-Link nothing works. The ST-Link doesn't recognize the micro...

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MWeid.2 by Associate II
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  • 7 replies
  • 0 kudos