STM32 MCUs Embedded software

Stm32L562 Internal Temperature sensor reading is not right?

float read_internal_temperature(void) { uint32_t adcValue; float temperature; // Configure ADC channel for temperature sensor ADC_ChannelConfTypeDef sConfig = {0}; sConfig.Channel = ADC_CHANNEL_TEMPSENSOR; sConfig.Rank = A...

USART_WakeUpFromStop1 leads to lost characters

While experimenting[*] with the USART_WakeUpFromStop1 example on my NUCLEO-L496ZG I noticed that repeatedly entering STOP1 mode leads to dropped character if running with a baudrate > 4800 bps. I'm using STOP1 mode in a different project and I hoped ...

Resolved! Making Ethernet work with LwIP and FreeRTOS on STM32F7

I am writing this post in case anybody encounters a similar problem. I had a problem with assigning IP address to STM32F769I-DISCO devboard and communicating with it via Ethernet while using LwIP and FreeRTOS. The solution to this problem was disabli...

DMA Interrupt not trigger

here i generate pulse using pwm generation.. where i need to stop at n th pulse.. so i use RCR register to stop it..where my mcu handle only 8 bit data to the RCR register.. so i split the data into array "RCR_Data" and stores as source destinationi ...

STM32H7S78-DK xspi external RAM corruption when using Template_LRUN example

Hello,we are experiencing RAM corruption when running an application in external RAM when setting a breakpoint while debugging.The issue can be reproduced using following configuration:1. Open example STM32Cube_FW_H7RS_V1.1.0\Project\STM32H7S78-DK\Te...

Resolved! section placement failed

STM32H7S78-DKlinker error occured.estimated minimum size of 0x1'3456 bytes ...Using IAR EWARM 9.60.2.What should I do?

RAM test method for X-CUBE-STL

Hi,I am reviewing the Safety Manual to utilize the Self-Test Library provided by ST, and I have questions about the RAM Test method.It is mentioned that STL provides RAM Test using the March C-algorithm, and its verified diagnostic coverage can satis...

HAL_Delay() Not Working Before OS Kernel Start.

Hi,I need to initialize a display by calling my function in main.c. This function uses the I2C4 channel and requires implementing some delays.Since it uses I2C4, it must be placed after the CubeMX Init functions, specifically in /* USER CODE 2 */. Do...

H7 USB devices Errata

Hello, I would like to get more info on Errata ES0392 Rev 13 - section 2.25.3:the errata states:I'm confused with the wording of this errata. Can someone from ST describe the meaning of this errata?I currently have USB0 connected to the USB Hub dire...