STM32 MCUs Products

I have made a target board using STM32G484VE . I am using 11 ADC pins spread across ADC1 - ADC5. I have introduced a 3.3V Zener BZT52-B3V3 as a protection at all ADC inputs, but all the ADC voltages read 0.6V less from the actual voltage ? Any reason ?

I have made a target board using STM32G484VE . I am using 11 ADC pins spread across ADC1 - ADC5. I have introduced a 3.3V Zener BZT52-B3V3 as a protection at all ADC inputs, but all the ADC voltages read 0.6V less from the actual voltage ? Any reason...

[AN2834] Is the LM235 a temperature sensor or voltage reference? (Errata?)

Hi,Maybe the TL431 is a voltage reference.

STM32H7 stopping a SPI TX transmission via DMA with a external GPIO trigger

Hi ST community,I'm using a WiFi module, which receives data with SPI. The WiFi module has NORX pin, which indicates whether the module can accept the data or not. The data bits sent when NORX is set to high are discarded. So, when transmitting a SP...

Issues in Serial communication

Hello, I am new to the community and to the project I am working on.. I am using a STM32 blue pill board and programming it with a simple code of serial communication :void setup() {Serial1.begin(9600);pinMode(PC13,OUTPUT);}void loop() {Serial1.print...

Stm32h747i Disco

There appears to be very long lead times for this product. Any reason and is there any chance it will get better?

HOW TO DO BASIC MASTER SEND DATA TO SLAVE IN I2C FOR STM32F302R8

I need some guide on how to do the basic master send data to the slave for i2c. The question is, I need to send some data to the slave with address 0x68. Unfortunately, my start condition could not be SET and I do not know why.here is the flow chart ...

Need to migration for changing from stm32h745ii to stm32h755ii?

Hi.I want to konw what changing to use from stm32h745ii to stm32h755ii in same product line.Are there changing firmware, ..., and start-up code? Thank you.

I am trying to purchase STM32 Nucleo-144 development board with STM32H723ZG MCU, supports Arduino, ST Zio and morpho connectivity - Can anyone help me as to where i can purchase these?

Resolved! STM32L432KC CAN bus does not transmit

Hi! I have been trying for a while now to get the STM32L432KC to transmit on a CAN bus but to no avail. I have been using a MCP2551 as tranciver and i know it works since i have gotten it to work with a STM32L476 board. The interesting part is that w...

Resolved! TouchGFX STM32L4R9I-EVAL : Why it's working using internal but not external SRAM ?

Dear all, Sorry if my english is not clear, and let me know if something is not clear.I need help...Using an STM32L4R9i Eval and the following "modules" HW and SW : Round TFT (MB1314), touchGFX, FMC (External SRAM), DSI/MIPI (LTDC), DMA2D.I'm strug...

STM32 MCUs Products

Forum Posts

I have made a target board using STM32G484VE . I am using 11 ADC pins spread across ADC1 - ADC5. I have introduced a 3.3V Zener BZT52-B3V3 as a protection at all ADC inputs, but all the ADC voltages read 0.6V less from the actual voltage ? Any reason ?

[AN2834] Is the LM235 a temperature sensor or voltage reference? (Errata?)

STM32H7 stopping a SPI TX transmission via DMA with a external GPIO trigger

Issues in Serial communication

Stm32h747i Disco

HOW TO DO BASIC MASTER SEND DATA TO SLAVE IN I2C FOR STM32F302R8

Need to migration for changing from stm32h745ii to stm32h755ii?

I am trying to purchase STM32 Nucleo-144 development board with STM32H723ZG MCU, supports Arduino, ST Zio and morpho connectivity - Can anyone help me as to where i can purchase these?

Resolved! STM32L432KC CAN bus does not transmit

Resolved! TouchGFX STM32L4R9I-EVAL : Why it's working using internal but not external SRAM ?

Two VREF+ pins on STM32G474Q?

AN2606 Rev65 Feb 2025 pattern 11 seems incorrect

Initializing RTC with battery backup on STM32H7747...

Initializing the HDP on STM32N6

After jump to DFU Bootloader Device resets on DFU ...

STM32G RTC sets to some value afterr reset