STM32 MCUs Embedded software

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Resolved! USB CDC Power request

Does the STM USB CDC driver support power negotiation? If so please could someone point me to where I configure a request for more than the default 100mA.I'm using STM32F407 and CDC is working nicely but the computer only shows that 100mA is reques...

PMath.4 by Senior III
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ST official example code (stm32cube_fw_l4_v1140->32L496GDISCOVERY-> QSPI_MemoryMapped )has optimization "Instruction scheduling" bug!

Official board: STM32L496G-Discovery board(MB1261B)IAR version: 8.32.3.2028Example code : QSPI_MemoryMapped (location: stm32cube_fw_l4_v1140\STM32Cube_FW_L4_V1.14.0\Projects\32L496GDISCOVERY\Examples\QSPI\QSPI_MemoryMapped)​The demo code run the WRO...

adong by Associate
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  • 1 replies
  • 1 kudos

UART RX overrun at specific condition

Hello again!I've got (another) weird problem working with both H743 and H750 (rev X and rev V). Here is my setup:SYSCLK = 400 MHz (from HSI RC)UART8 = 100 MHz, Async mode, only RX/TX, 19200-8-1-NUSART1 = 100 MHz, Async mode, only RX/TX, 19200-8-1-NUS...

Peaga by Senior
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  • 2 replies
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FAT SD card works, FAT32 doesn´t. Why?

Hello everybody,i am using a STM32F401RE nucleo board and have implemented USB as mass storage device and a SD card with SDIO 1 bit mode.When I am using 2 GB SD card with FAT. Everything works like a charm. Windows shows me the SD card after 1 second...

JCorn.2 by Associate II
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  • 3 replies
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STM32F303 USB VCP device not showing up - windows 10

I'm having issues getting USB to work on STM32F303RE. The device doesn't show on windows machine. I'm using 24 MHz 10ppm external xtal. I generated initialisation code for keil with cubemx (using STM32Cube FW_F3 V1.10.0) with just USB enabled and it ...

GPavl by Associate
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  • 2 replies
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STM32F4 ==> LwIP_DNS

Hello sir, I want to use DNS for my project, but it is not easy, I need your help. From now, I succeed to port IP address. but it is failed to use DNS. I set the DNS on the STMC32CUBEMX and checked in the file <<Lwipopts.h>> =================Procedur...

Problem with TIM9 on NUCLEO-F767ZI board.

I'm using the NUCLEO-F767ZI board. I can get PWM to work with any timer except TIM9. The debugger shows TIM9's ARR, PSC, CCR having the values i set them to. After the call to HAL_TIM_PWM_Start (&htim9, TIM_CHANNEL_2) is made, the CEN bit in CR1 is s...

BVu by Associate III
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  • 10 replies
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Resolved! How to find out RCR timer availability?

Hello,is there any way to find out by the CMSIS headers if some given Timer has the RCR (Repeat Count) Register? Is it possible to find out at runtime? Or do all TIM1/8/20 15/16/17 Timers do have the RCR register?