Hi, my USB host (CDC class) enumeration get stalled when the device is attached and enumeration status is ENUM_IDLE. The "IF then" test statement "if ( USBH_HandleEnum(phost) == USBH_OK)" should call the routine USBH_HandleEnum() but it does not and ...
I am using USB port on STM32L151RE MCU and I have to use external pull-up resistor on DP line. However, AN4879 document says that STM32L1 Series have embedded pull-up resistor on USB DP line. But DP pin doesn't pull-up automatically after USB initial...
i'm using Google Chrome. it typically makes it to 1GB of the 1.1 GB zip file. i once got the zip file to download but it wouldn't let me open it because I didn't have permission. No amount of trying to change the permissions made it work. i suspect t...
Hi, I've been having fun with SMT32s (CubeMX Truestudio) for a while. Now I would like to try to switch from HAL libraries to low level ones, and maybe stop using CubeMX and write the code directly by hand.Someone can recommend me online resource, b...
HiI askWhat is the best mode for the uart in RTOS to send at command and receive it?I think polling is inappropriate because it adopts systick
Im using CMSIS drivers for AT45DB and SPI. And Keil filesystem.And stuff dont work. After I call fformat function Im getting stuck at EraseChip function in AT45DB641E.c @ while (ptrSPI->GetDataCount() != 4);The thing is that byte are sent, but I nev...
Hello,I want to read multiple ADC channels, using STM32F302R8 MCU my IDE is System workbench. I am searching for relevant examples with DMA but not able to find. Any help in this regard would be appreciated.Thanks and regardssathguru
What is a good design for USB for DFU mode for the STM32F4 (or STM32F7)? I want to connect an application to use DFU in the STM32. The 22 Ohm schematic I do see online in best of bread schematics, but what to do??https://imgur.com/PtqrAUKIs it the de...
Hi i am using ethernet in stm32f746g disc board. Is there any way to check in program that the cable is connected from both side (board and router side). Because LED start glow in ethernet connector when both side connected but want to know how to ch...
Hi,I am working on a project with Nucleo board 401 and the serial device SIM808, the communication is managed with CMSIS-RTOS2 APIs.In my code there are two threads, the first (mainTask) that sends an AT command at the SIM808 and the second (StartDef...
