STM32 MCUs Embedded software

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STM32Cube_FW_F0_V1.11.2 HAL I2C module has serious bug in NACK bit handling for I2C CR2 register, breaking fast successive I2C transfer in Slave-mode

I suppose that NACK bit handling logic was inherited from F4 family, where ACK bit is used for address/data acknowledgement control and could be set/reset by software. Unlike F4 family, I2C controller of F0 uses CR2 NACK bit only for data bytes and d...

MDednev by Associate
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Resolved! STM32G0 USB-PD Source stack periodically sends hard resets when compiler optimizations are enabled.

I'm using a Cube IDE generated project (latest version) with the latest version of the G0 SDK. This problem originally showed up on a custom board but I have reproduced the problem using a Nucleo-G071RB dev board wired up to a USB-C breakout jack wit...

Resolved! Hello, I'm using STM32F767ZI NUCLEO Board Want use Ethernet to Communicate with IOT cloud and also I'm trying to implement UDP server

I've checked various example on internet but I haven't get any one of them working for me,The board even not connecting to the router, I've tried static as well as dynamic IPI'm new to Ethernet & LwIPcould you please  provide me any staring example f...

DK.8 by Associate II
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Usage of System Bootloader via USB of STM32F723IEK6

Hello ST Community,in a software project I want to transfer data, which are stored on a SD card, via USB High Speed to a computer. Another requirement is to update the microcontroller using a PC software. For this I want to integrate the CubeProgramm...

Rookie38 by Associate III
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Resolved! Problems with STM32L552 USB-VCP

Is there anybody out there who got the USB running as VCP on a STM32L552 ? We have problems to get the system running with USB attached to a PC via VCP. We used the MXCube release 5.6.1 and created a small project with USB VCP. The VDD-USB Pin is co...

GS1 by Senior III
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Bug in USBD_core when resetting?

I was chasing down a problem and came across this code in the USBD_LL_RESET function inside of USBD_core.c:if (pdev->pClassData != NULL) { if (pdev->pClass->DeInit != NULL) { (void)pdev->pClass->DeInit(pdev, (uint8_t)pdev->dev_config); ...

JKaz.1 by Associate III
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  • 2 replies
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Ethernet design requirement with STM32H755

Dear Experts,We have a design with STM32H755 having 3 Ethernet ports. Out of which 1 is over RMII controller the other two are over SPI interface.My queries are as follows,1. We want to run all 3 three Ethernets at the same time, How to handle this s...

MK.111 by Associate II
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