STM32 MCUs Products

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Resolved! STM32L0 LPUART TX using DMA and STOP mode. Is it possible?

Hello,I know that LPUART can wake up MCU from STOP mode. But I'm unable to send data using DMA when entering STOP mode. I use LSE and 9600 as baudrate, so transfer takes a lot of time. I need my core to be in stop mode to reduce current consumption.I...

MŁask.1 by Associate II
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  • 6 replies
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Hello, I am working on the Normal Mode on STM32H735G-DK board using FDCAN1 & FDCAN2, but the callback function is not triggered, but when I use the same code on STM32H745I-DISCO board, it worked, anybody has any idea?

always stuck in here Error_Handler, and only TxData can load Message successfully twice, so I think it's because of the Callback function is not triggered, so the transmission is interrupted and also RxData didn't receive message.Here is the Callback...

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Acecream by Associate II
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  • 1 replies
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Resolved! STM32U5 LSE/PC13 Errata and LSE bypass mode

The STM32U5 Errata Sheet (ES0499 rev 5 is the one I am looking at) has errata 2.2.1 which says: "The LSE frequency can be incorrect when PC13 is used as output for RTC_OUT1 or TAMP_OUT2 function". The workaround: "The RTC_OUT2 function must be used ...

How do you set up LPUART1 with an STM32L452RE?

Hi i'm trying to get the LPUART (PA3, PA2) pins to communicate with my computer via the serial port, but i can't get anything to work. Here is what i'm trying to use at the moment...Sysclock Config:#pragma once   extern "C" void SystemClock_Config(vo...

RBamf.1 by Associate III
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  • 2 replies
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UART behavior on reception error, flags set, e.g. PE, NE, FE

Alright, I am searching the STM32L4 reference manual (RM0351), and as far as I can see, there is no description of how the UART is expected to behave when various "reception error" flags are set. In my case, I am observing NE when resetting a modem, ...

apullin by Associate II
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  • 1 replies
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Caprure compare Interrupt

I try to generete interrupt when CNT register reach any value. But It generete when I enabled to interrupt EGR bit is always zero. when I try to change accept first bit not effected.It is configuration  capture = TIM_GetCapture2(ExternalOSCTimer); TI...

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hdemi.1 by Associate III
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  • 3 replies
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