STM32 MCUs Products

STM32F103C8T6 sending data over I2C via DMA

Greetings!I have "blue pil" stm32f103c8t6 and I want to send data over I2C via DMA. "Classic" way is working fine (I'm sending data to 2004 display through PCF8574 extender), but I can't get it working with DMA.BTF flag isn't set and the loop becomes...

STM32G474 CAN FD no priorization of CAN IDs?

I have multiple CAN FD Participant which are configured the same way:if (canFdMode == canFdModes_2mbit) { hfdcan1.Instance = FDCAN1; hfdcan1.Init.ClockDivider = FDCAN_CLOCK_DIV1; hfdcan1.Init.FrameFormat = FDCAN_FRAME_FD_BRS; hfdcan1.Init.Mod...

how to use stm32F103C8t6 SPI in Half duplex mode

is it possible to use another output than MCO to generate an arbitrary clock (16.777216MHz) from an internal PLL block?

I want to use a different PLL block than PLL1 to leave PLL1 specific to SYSCLK generation; and for example use PLL2 to generate my arbitrary clock.I see that SAI blocks use for example PLL2 or PLL3 but I don't know if it is possible to make an arbitr...

32F417 ADC conversion time - figures don't make sense

Hi All,I am using the simplest mode, single conv, software start, etc. 21MHz clock (/2 divisor).I have been measuring the conversion times both in a loop and with a scope on a waggled GPIO pin.With a sampling interval of 3,56,480 I see conversion tim...

Questions about ST's BFB workaround on STM32L072

I'm working on a STM32L072, and I want to implement an update over the air. I saw there is an errata about the dual bank boot, and ST has made a workaround on it, and it uses the EEPROM.Code from the errata sheet:void SystemInit(void) { /* ...

FATFS -SDMMC - DMA transfer problem

In CubeMX 5.3.0 I have configured FATFS and FREERTOS for a card running STM32L431. The HAL SDMMC driver is communicating with SD card, and everything goes well until the FATFS want to read the MBR block from the SD card. In this case, the DMA channel...

i am insterfacing RENESAS ISL94212 BMS kit with STM32F103C8T6 through SPI half dulplex master mode and i connect BMS kit MISO and MOSI pin connected externaly data recieve but with garbage values are also comming.