STM32 MCUs Products

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STM32F103 UART Bootlader: "Error activating device: KO"

Hello,I'm new to this STM32 products. We designed custom module with STM32F103CBT6TR. We are facing issue with serial boot loader.I'm using CH340 UART to USB converter module. CH340 MOD TX --> Our Module's RXCH340 MOD RX --> Our Module's TXCH340 MOD ...

gadi_0-1765184162415.jpeg gadi_1-1765184232337.png
gadi by Visitor
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  • 2 replies
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Quad SPI Mode 1-1-4 Read Problem

Hi,I'm using OCTOSPI in Mode Quad SPI on a STM32H563ZIT6.  I'm having issues when reading Serial Flash data with a 1-1-4 (6Bh) read, 1-1-4 (32h) write is working fine. Also 1-1-1 read and 1-1-2 read also work fine.  The serial flash is IS25LP032D.  I...

Mike_d by Associate
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  • 1 replies
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STM32U5 internal RTC time greater than 24 hours

We are using the STM32U5 MCU and its internal RTC in our project.We are facing an issue where the RTC time sometimes goes beyond 24 hours — for example, we observed a timestamp showing 37 hours.The RTC is configured in 24-hour format, and we have ini...

UART not working at High speed

Hello,  I’m trying to transmit data at 2.5 Mbps (2500000 baud), but I’m not receiving any output. The same code works correctly at 2 Mbps, so the issue only appears when using 2.5 Mbps. I tested both 64 MHz and 40 MHz clock configurations for the UAR...

Rohit007 by Associate III
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  • 1 replies
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STM32H523 QUADSPI W25Q64 External Loader

Hi, I'm trying to do an external loader according ST's MOOC and this forum https://community.st.com/t5/stm32-mcus-products/stm32h5-external-loader/td-p/601134.My code pass on all ST's tests of memory, but when I generate a stldr it does not read on c...

MMira.4 by Associate II
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  • 16 replies
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ISSUE with STM32L051C8T6

Dear ST Team,我用usb转ttl单独对4g模块发at,回复消息是正常的,单独模拟给单片机发数据,回应的数据也没有丢字符,就是4g模块跟单片机之间通信的时候存在问题When I use a USB-to-TTL adapter to send AT commands to the 4G module alone, the responses are normal. When I simulate sending data to the microcontroller alone, th...