Resolved! Typo in STM32F405xx STM32F407xx datasheet
In STM32F405xx STM32F407xx datasheet On page 19/203, there are typos in APB2 and APB1 frequencies.
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Resolved! Use of bootloader to program an STM32G474QET6TR
Hello, I am designing a card that will use an STM32G474QET6TR and I want to program it using USART. The card will use a USB to USART converter (FTDI4232HL). The Rx and Tx of the FTDI are connected to pin PA2 and PA3 respectively, as I found in AN260...
Resolved! STM32N6 minimal hardware design
Hi there,I'm designing a custom PCB using the STM32N657Z0 MCU. The design is extremely space-constrained, so I try to leave out everything I can. Since this deviates quite a bit from the reference design (well, the N6 Discovery kit, that is) I'd love...
Resolved! STM32F09xx USART LIN break interrupt management using HAL drivers
Hi everyone,I tried to manage the USAR LIN break detection interrupt using only HAL driver functions but I did not find a way to do that. I had to modify the file stm32f0xx_hal_uasrt.c adding some code to manage the LIN break interrupt.Is there a way...
Resolved! Can the STM32U595QII6Q chip be supplied for 10 years?
We are currently using this chip and hope that this selection can be supplied for more than 10 years.May I ask how to retrieve such information?
Resolved! A usable and minimal USB osciloscope with bluepill
hi guys, I'm a desktop programmer and do not know much about micro controllers and electronics but i am very interested in making an oscilloscope which:- simple to build with well known parts and ICs- it uses bluepill as the ADC and no other ADCs- i...
Resolved! Accurate ADC reading with Bluepill
Hello all,for my DIY Radio Controller (LoRa and STM32F1C8) i am using two joysticks and one poti.I am reading ADC with the DMA but what i noticed is that the ADC values are not so accurate.I know with not (professional, expensive) Potis and joysticks...
Resolved! How can I use an ESP32 to update the firmware of an STM32 from any family
Hello, I am designing a device that will have an STM32L4 or maybe an STM32U and will communicate with an ESP32 for internet connectivity. However, at some point, I would like to update the firmware remotely, and have the ESP32 stop executing its conv...
Resolved! STM32L552CCT6 Unable to erase flash memory
I can't erase the flash in the STM32L552CCT6 with the code below. I wonder if my code is wrong. When I check the memory, the 2kB from the flash address 0x803F800 is not 0xFF. The reason it wasn't 0xFF originally seems to be because something other th...
Input bias current of comparator inside 48 pin STM32L073 microcontroller
Hi,We have a 1MEG resistive divider which we hope to provide the reference to the comparator internal to the STM32L073.Though we need to know the input bias current of the comparators inside this micro in order that we can calculate the volt drop by ...
