About JChou.1

JChou.1 · 2022-09-22

Hi all,SBSFU ported to many custom boards and in projects, and is working as expected. But in a project with Touchgfx throwing error "error was: Firmware signature check failure." on Installing update FW from download area.As it is working for other ...

JChou.1 · 2022-08-11

Hi there ...Is there any document explain the STUSB4710 register map (in stusb4710.pdf)? I have already STUSB47xx_register_map_public.pdf, but nothing detailed!I'll appreciate for any help.With regardsJitu

JChou.1 · 2021-11-01

Hi, I have successfully implemented a complete graphic to display some system related parameter on a monochrome OLED Display with display driver SSD1322, which is a horizontal drawing pixel, however porting the same code to a monochrome OLED Display...

JChou.1 · 2020-12-03

Intergrated USB in SBSFU for FW update, and adapting it to work with YMODEM protocol. Only half of the package is downlaoding to microcontroller. Getting error. I will highly appreciate for any help. = [SBOOT] STATE: HANDLE CRITICAL FAILURE= [EXCPT]...

JChou.1 · 2020-11-29

Under SBSFU, I am able to run my custom application, and everything run fine. But changing the SFU defualt UART.with USB throughing error "USB Device not recognize!!!", I debug through SBSFU code, and USB stack(CDC and Devi ce only Configuration) in...

JChou.1 · 2023-02-06

Here:https://community.st.com/s/question/0D53W00001PwBDDSA3/issue-building-sbsfu-with-latest-stm32cubeide-190-here-is-the-solution

JChou.1 · 2022-10-03

Hi Jhoud,MCU : STM32F446Development tool: STM32CubeIDE 1.5.0SBSFU type: 2_imageAs the complete image (.bin generated by prepareimage.py ) runs and only the .sfb on fw update causing error.With regardsJitu

JChou.1 · 2021-02-10

Yeah, It is virtual UART not UART!!!Sorry its company work .

JChou.1 · 2021-02-04

Hi,Yeah, it is difficult!!I have replaced UART with STM32 USB-CDC and CAN-classic interfaces, and implemented a custom YMODEM protocol both side(PC and Board) to work with new interfaces. The trick is, you need to adopt YMODEM protocol (both side) ...

JChou.1 · 2020-12-01

Ok, thanks

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User Activity

SBSFU & Touchgfx ->Firmware signature check failure.

Detail STUSB4710 register map

Changes require to display graphic on the vertical drawing pixel( vertical bytes orientation e.g. display driver SSD1309 etc.).

Adapting YMODEM to work with USB-CDC Class (on Microcontroller) .

Replacing UART with USB for SFU. Getting Code 43 error- USB Device not recognize!!!

Re: STM32-WL55JC: "Cannot use executable file as input to a link" issue

Re: SBSFU & Touchgfx ->Firmware signature check failure.

Re: Replacing UART with USB for SFU. Getting Code 43 error- USB Device not recognize!!!

Re: Replacing UART with USB for SFU. Getting Code 43 error- USB Device not recognize!!!

Re: Replacing UART with USB for SFU. Getting Code 43 error- USB Device not recognize!!!