STM32 MCUs Products

STM32L4 Wrong MSI speed

Hello! I noticed a speed error on MCU L476 and L433. When setting MSI frequency to 1 MHz, the frequency is 1015.5. (Auto trimered by LSE, LSE enabled and work well) At higher frequencies, the operation is normal. What could be the reason?

Hi everyon! It is my first time to programming STM32 mcu and my task to send sesnsors data to a server. I chose to use mqtt protocol for this task. I find eclipse phao mqtt client which written in c language. Can somebody tell me how can i use this lib?

I set up mcu with CubeMX ethernet is used in MII mode.

Power consumption on STM32L476RG NUCLEO in various power modes

I am testing the demo code given in the directory STM32Cube\Repository\STM32Cube_FW_L4_V1.14.0\Projects\NUCLEO-L476RG\Examples\PWR for CubeMx. I am testing the code PWR_ModesSelection and am recording the current values across J6 IDD which I'll be wr...

Chip Select pin for external NAND flash

Hello,I'm going to use the Memory connector CN11 and CN12 on STM32H753I-EVAL to evaluate an external NAND flash memory. According to the reference manual of RM0433 page 838, the Chip Select is NCE, but NCE could not be found on the pin list of CN11 a...

Why RAM test "STL_SCH_ConfigureRam()" give back "STL_ERROR"

hi， I use STM32_Safety_STL to test STM32L433RC RAM, but when configureRam, return "STL_ERROR",please help:code :#define RAM_SECTION_SIZE 128U //STL hard coded#ifdef STL_DISABLE_RAM_BCKUP_BUF#define RAM_BACKUP_BUFFER_SIZE 0#else#define RAM_BACKUP_BUFF...

STM32 IoT node discovery kit enter standby mode and wake up periodically using RTC.

Hello everybody.I am developing some test firmwares on a STM32L475 discovery kit.After some working programs using RTC alarm, now I need to do some experience with the more powerful standby mode.I need to set a fixed timer using the RTC in order to w...

how to store can messages in a buffer

SMBUS

I am using STM32F779NI for my project. The end device works on SMBUS. Does using I2C HAL for driver development instead of SMBUS HAL will work??If not, are there any example code for SMBUS, share a link if there is any?