STM32 MCUs Products

Bypassing UART

I have a UART configured in DMA read mode:/* task 1 code*/ uint8_t dmaRXBuffer[1]; HAL_UART_Receive_DMA(&UART_DOWN_USB_TO_SERIAL, dmaRXBuffer, 1);   /* UART DMA receive complete ISR code*/ void HAL_UART_RxCpltCallback(UART_HandleTypeDef* huart) { if...

Hello, I'm new in STM32 MCUs. I'd like to know: what is the difference between St-link and FTDI Conversor USB Serial to programmer stm32f103c8t6?

the result of ADC1 and ADC2 with DMA are not in right order

What would cause my MCU to be held in reset?

I have a STM32F756 on my PCB. The microcontroller was responding with no problems, has been programmed and software running on it. It was put to the side for a few days, and when picked up again, the micro has become unresponsive and the SEGGER JLink...

CubeMX / UART transmit DMA question

I am using an STM32L476VG which does not have UART transmit/receive fifo's.Therefor I am using DMA for periodic transmission of some data (3 bytes at 125kbit at about 2kHz).This is all configured in CubeMX and functioning (DMA in normal mode btw).I a...

F401RET6 - unstable at 84MHz, works fine with 48MHz

Hi,I am trying to setup clock from HSE on a F401RET6, when I setup 48MHz it works fine, but when I try 84Mhz after few steps when clock is set the CPU makes werid things (the PC counter stops increment or goes to a strange value).I am using libopencm...

How do I set the embedded ST-LINK V2 on a STM32F4-Discovery board (MB997C) to direct firmware update mode, so I can update the firmware?

STM32 ST-LINK (ST-LINK>>Firmware Update) complains about ST-Link not being in DFU (direct firmware update) mode.

searching tutorial for STM32F091C-Eval.

Hi I bought the STM32F091C-Eval board to practice for µC programming. But it seems i have never programmed anx µC and I am looking now for step for step µC programming for the STM32F091C-Eval. I downlaod the STMCube and ARM MDK for the programming an...

STM32F7 USB Host - OTG_HCFG & OTG_HFIR values for Isochronous data

What values should OTG_HCFG & OTG_HFIR (and USBPHYC_TUNE for internal HS PHY on STM32F7x3xx) be set to for Isochronous data?As I understand it Isochronous data should be allocated 1 to 3 'slots' per Start of Frame (SOF) in full speed mode and up to 1...