STM32 MCUs products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...


FILE *stream via USART

Hi,I'am reading data through USART1 and USART2. I am sending the data over USART3 using printf. It works for a while but then stops.Here is my code:FILE *stream; char *buf; size_t len; void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { if (...

asttekin by Associate
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Resolved! Is this chip a genuine stm32 chip or clone?

I've been having a few problems uploading code to that chip ( having to press reset every time in addition to the inability to use the "ST-Link (GDB server)" option for debugging) and i was wondering if that was due to the fact that it might be fake...

HAbay.1 by Associate III
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Interrupt safety issue in HAL_I2C_Mem_Read_DMA()

STM32Cube_FW_F0_V1.10.1Line 2434 in function HAL_I2C_Mem_Read_DMA()/* Process Unlocked */ __HAL_UNLOCK(hi2c);   /* Enable DMA Request */ hi2c->Instance->CR1 |= I2C_CR1_RXDMAEN;   /* Enable ERR and NACK interrupts */ I2C_Enable_IRQ...

STM32 and json

Hi Guys,I´m working with STM32F429ZI and I´d like integrate a project with json library. What is the best way? Are there ST json library? to STM32?Where can I find examples?Thanks,Geraldo.

occurred fault during HAL_RCC_OscConfig

Hi,​I am using ST32F446RC.After jumping from bootloader to application, an fault occurs during clock setting(HAL_RCC_OscConfig function). The bootloader code and application code use the same clock code as below.static void SystemClock_Config(void) {...

HKim.23 by Associate III
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Interrupt priority register addressing

Hi All,I think understand the concept of this, what I am not 100% sure about is how each NVIC_IPRx entry relates to an actual interrupt.Is it directly referenced to the 'Priority' number in the Interrupt Vector Table ?So for example just looking at t...

RMyer.1 by Associate III
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Extended CANBUS example L4 or H7

Hello,In my project I must use extended CANBUS protocol on STM32L496 and STM32H743 microcontrollers. Does any one have example how to use it ? None on STM examples comes with extended canbus demo, googling also did not give any results. I have workin...

Linas L by Senior II
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We are using STM32L072KB MCU in one of our product development. Currently we are facing current consumption fluctuation problem in STOP mode of operation. (0.31uA to 0.61uA). What would be the root cause of this type of issue?

Test ConditionMCU Operating Mode- StopIO- all analog and floatingAll peripherals- DisabledInternal Regulator- Low power modePCBA- Only MCU , decoupling capacitor and boot select resistor.Supply Voltage- 3.3VResult- IDD current fluctuate continuously....

SKatt.1 by Associate
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