STM32 MCUs Embedded software

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USB Composite with STM32Cube

Posted on March 10, 2015 at 10:29I would like to implement a USB Composite (USB-MSC + USB-CDC) on USB_Device on STM32F4xx target using the STM32Cube. Neither STM32CubeMX or the demo applications in the STM32CubeF4 v1.4 package propose a composite de...

mathilde by Associate
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STPM32 issue in Enabling communication

We are using stpm32 for Ac metering. We have sent the sequence ( 48 FF FF FF 22 ) to read register 36 which will read VRMS and IRMS. Now it is reading but when I change the AC mains voltage, the readings are not changing. Is there anything I need to ...

STM32CubeF4 LIN driver support

Posted on September 09, 2014 at 04:06Hi!I am creating a project using STM32F4.The project should support LIN communication through UART4.I have the base code created using STM32CubeF4.I am using the provided HAL UART driver but the functions and it'...

Don't receive concurrently packet from UDP

Posted on July 14, 2018 at 17:03Hello.I have a problem about my project.I use my same codes in different MCUs (STM32F746 and STM32H743).Recently, I found this bug when receive from UDP at 0.1ms ~ 0.5ms interval concurrently packets.(FreeRTOS, LwIP)I...

ADC when VCC 2.4V

Hi All; I have supply voltage 2.4V DC. I have input ADC 3V. I would like to know when I read ADC. How much ADC value input?

Gz by Senior
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Bug in STM32F4 HAL Driver, RTC

There is a bug in HAL_RTC_SetDate() function. As usual it has asserts for input parameter. Unfortunately in version 1.7.4 there are asserts in lines 653 and 654 which test the datetmpreg variable which is always zero in case of RTC_FORMAT_BCD. Actua...

grzegorz by Associate III
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ETH_IRQHandler never hit

Posted on June 13, 2018 at 10:20Im using stm32f746ZGT + LAN8472A  and lwip + freertos on my custom board. I generated default ethernet project by cubemx. I set static ip. After connect cable. Link leds seem like good. Yellow one is stable and green...