STM32 MCUs Embedded software

Bug: Option bytes driver can leave option bytes in inconsistent state

Processor discovered on: STM32F103C8Function with bug: HAL_FLASHEx_OBProgramParameter pOBInit pointing to a FLASH_OBProgramInitTypeDef object with the following values (which disables write protect on all flash pages) with pre-existing condition that...

[STM32F303][USB FS] Isochronous endpoint: 1 ms frame with a large buffer.

[STM32F303][USB FS] Isochronous endpoint: 1 ms frame with a large buffer.Hello,I would like to know how I could setup an isochronous endpoint with a large payload.USB specification and RM0316 manual:USB 2.0 specification report that in FS mode, it is...

DFU file manager

Good morning,I'm working with STM32L4 and I have created my own bootloader.In order to program the MCU, I use USB interface, so I need the DFU file. I use the 'DFU File Manager' tool to create the DFU file from the HEX file. It works fine, but then, ...

CDC abnormal behaviour on STM32F767ZI - CDC Transimission broken after reset

My system -> Pc with WIN7 + STMF767ZI demo board + Putty for recive/transmitt data​.In File.zip you can find the program that i write using CubeMX + Atollic 9.2.0.q1) When i reset the board by clicking on reset button on the board, only the communica...

I'm using STM32F303RE for usb MSC, the following code works on en stm32f7 but when i try is on stm32f3 the device is not detected by windows at all, not even in device manager. could somebody take a look why this might be en how i can solve my problem

What causes SRC to send Hard Reset during charging?

I am working on a SNK device. Power negotiation goes well, an explicit contract is reached. Charging starts. Sometime into charging, SNK gets a Hard Reset. What could cause a SRC to send a HARD RESET during charging?

Does USB library work under heavy interrupt load?

I'm implementing a USB Host (HID Class) on a STM32F7 in order to connect a mouse.The problem is that in about 50% of cases, phost->gState ends up in HOST_ABORT_STATE, where exactly I do not know. If this does not happen, my user function USBH_HID_Ev...

Ethernet frame length issue

Hi, I got a problem when I use the Ethernet TCP stack and hope someone can help me figure it out.I am using tcpecho protocol to communicate between PC and the board. PC send the command and board response with the data. If I just send 64 bytes, as: ...

How to implement custom HID host using maximum of HAL and middleware?

Hi all,I am trying to implement FIDO U2F host. I have configured USB_FS as a host and added USB_HOST middleware with human interface host class. But I have noticed that USBH_HID_InterfaceInit function expects keyboard and mouse boot classes only, and...