STM32 MCUs Embedded software

STM32F446 + DMA + FATFS + SDIO

Hello everybody,using Fatfs and f_write, when writing the file "1, 2, 3, 4" to the SDCard, I can see that what is written on the SDCard is "0,0,0,0,1,2,3,4" . What layer is inserting the 4 "0" at the beginning of the file and why ? Is it an 32bits a...

STM32L452 current consumption in STOP 2 mode is less than datasheet indications.

When I run the PWR_STOP2 example from the STM32Cube_FW_L4_V1.15.0 on a STM32L452VE, I measure a current consumption egal to 1.6 uA instead of 2.05 uA.The datasheet and STM32CubeMX indicate 2.05 uA without RTC for this target.It's a great news 8) but...

How do I set the user_configuration especially nBOOT_SEL, nBOOT1, nBOOT0 with the I2C protocol used in the STM32 bootloader?

I tried to set the option byte via write memory command using the address: 0x1FFF7800, but it don't work it always returns a NACK. If I try to read from this address no problem occurs.I also tried to read FLASH_CR (0x4002 2014) and to write FLASH_KEY...

Help on a schematic for dev-board based on STM32G431 with USB-C power delivery and programming features

Hello,I am making a dev board for this new family of MCU, I need USB programming and power delivery.To make it I am referring to the datasheet, Nucleo dev board and to the application note.I did only once a board with STM32 and it was an F1. I can se...

We developed the product using STM32F722. I know I can sublicense VID and PID for free, but I don't know who to contact. Would you please tell me where to contact?

STM32F411 re-enter into bootloader mode

Posted on April 27, 2017 at 09:58Hi,I am doing a firmware upgrade to a STM32F411RE using DfuSe application tool. But after I click ' Leave DFU mode', the MCU re-enters into the bootloader mode. I do not see this problem when I perform the same firmw...

I2S_CKIN Not Displaying in SAI UI

Hi there!When I set up a fresh project for the STM32G431KB in STM32CubeIDE, let's say I want the SAI to be clocked by an external clock source.So, in the prefs, I set Audio Clock Input (I2S_CKIN):Then I set up my Clock Configuration:Now one would exp...

Not getting PE Alerts when cable is connected on power up

Hi again,Our device is configured as a SNK, STM32F030CC with PTN5110 TCPC.When a source is connected on start up, stack doesn't seem to detect connected cable. PE Alerts aren't received. Any thoughts on where I should check would be greatly appreciat...

FATFS using long file names

Is anyone out there using STM32FCube w/ fatfs with LFN (long file names) ? My project works, but I can only get a small file name to work. I have tried all of the settings in FFCONF.h and added ccsbcs.c file.