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...

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Timer 2 as likely watchdog

Dear,We using the STM32L071 and timer 2We will using a timer where the timer output is connected a relay. (watchdog functionality) The timer prescaler is set to a time of 2 sec. The output should be high when the timer counter is lower than the comp...

OGhis by Associate III
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Resolved! Missing EXTI IR handler code

I'm using the EXTI1 interrupt and defined the EXTI1 handler like this:void EXTI1_IRQHandler(void) { __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN_1); if (GPIOA->IDR & 0x0100 { EXTI->PR = 1; (void) EXTI->PR; NVIC_ClearPendingIRQ(EXTI0_IRQn); ...

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...

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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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