STM32 MCUs Products

How are non-existent pins / ports wired up

Does anyone have any experience of trying to control non-exisistant pins?I have a design that takes stm32f767 in the lqfp100 package. But none seem to be available.Looking around, I managed to procure a small run of stm32f779* in the wlcsp180 package...

Related to equations solving in STM32 MCU

I am using STM32F404 MCU I have interacted MPU6050 with my MCU and now i want to put IMUs data into some Eular equations for my application I have enabled FPU of Processor and using math.h library to code the equations i have observed that its takes...

Undesired Square Wave on Pin configured as GPIO_Output used for SPI Slave Select

I have a STM32G0B0KET6. I have configured Pin A4 as a GPIO Output. However, I see a 506.000 Hz Square Wave instead of it being high. It sometimes works correctly as a slave select. At one point the line goes to 0V. If I reset the controller after thi...

What is the process to use the ADC on STM32F745 to wake up the micro from Sleep?

Want to use a ADC threshold on STM32F745 to wakeup the micro from Sleep. Table 14 (Features over all modes) in the reference manual, indicates that this support is O (optional i.e. Off by default but can be turned on by software). Can someone please ...

Hi everyone, I want to interface PCF8575 with a custom keypad of size 8x8. Is there any library or support available of PCF8575? Also how to define GPIO's of the PCF8575 as input rows and output columns?

How to use UpdateCharData[] and Custom_App_Context_t

I am new to microcontroller development and trying to implement my first custom ble service.I looked at a few other examples that often use the _App_Context_t struct to store data before passing it to the character update method.Example:Custom_STM_Ap...

I use the STM32F429 for my new products, and the Crystal for the RTC stops running when power goes away. I have a battery on it to run RTC, so I can I get the 32.768kHz crystal on OSC32 to run using the battery on Vbat??