STM32 MCUs Products
Ask questions, find answers, and share insights on STM32 products and their technical features.
Forum Posts
Would you tell me the condition(Hi/Low/Hiz/PullHigh/PullLow) of all ports of STM32G474 MCU chip when it gets boot mode with boo0 pin of high?
I'm building a new custom PCB with the MCU(STM32G4) chip and needs to get it updated with a new Firmware through UART by main computer. then I HAVE TO CARE all MCU pins so as NOT to make bad effects on other LSI during boot mode. I need to know all t...
Resolved! Trying to find best and most reliable way when using the STM32 timers to change the timebase 'on the fly'.
Hi, I've recently retired from being an electronics design engineer for over 40 years. I wanted to have some fun playing around with micros to do some basic control. I have both the Nucleo-F030R8 and STM32F4 Discovery evaluation boards and have bee...
Why does my Opamp PGA seem to be 10, not 16?
Hi,I have a board, with STM32f303. It generally works fine, but I am using the opamps and they are causing me trouble. I have set them up to have PGA of 16, and be internally connected to the ADC, and have test points on my board where I can measure ...
Resolved! float correctly displayed in debug but not in release.
Dear experts,i try to use the float library with printf or vsnprintf. The option nano has been checked, the -u _printf_float too. The latest version of STM32cubeIDE, the proc is STM32F446RE. The value of floats are correctly displayed in debug but i...
Resolved! Hello everyone, I am new for STM32F4 microcontrollers. I will plan to use I2Cs of the MCU. Can I use I2C1_pack1 and I2C1_pack2 at the same time? So, if I used PB6-PB7 as SCL-SDA and PB8-PB9 as SCL-SDA at the same time in different operation? I want to....
I want to learn that Can we use 4x I2C communication protocol in STM32F407?
About alternate function of STM32F746
Hello,STM32F74xxx Reference manual (RM0385) 6.3.2 I / O pin alternate function multiplexer and mapping has the following description.After reset the multiplexer selection is alternate function 0 (AF0).I think that when AF0 is selected, it will be ass...
[STM32G474] - ADC Error
Hello everyone,I am currently working with the STM32G474QET6.Trying to measure Honeywell pressure sensors whose output voltage ranges from 0V to 3V.The problem is that the measurements have a much greater error than indicated in the data sheet.To rul...
Resolved! Can STM32F401CEU6 and STM32L433CCT6 be used interchangeably?
Hi,I have a circuit board that uses STM32F401CEU6, and now I decided to replace it with STM32L433CCT6.I want to know the transplantation method from using STM32F401CEU6 to using STM32L433CCT6 in the program.Regards,Zhao
I can't experiment - I can't receive parcels with a CAN harness and special software.
Hello! I can't experiment - I can't receive parcels with a CAN harness and special software. Here is a similar experiment https://www.programmersought.com/article/2185872275/.I have elements:1 stm32f103c8t6 board,2 Debugger st-link v2 (china),3 SN65H...
