About JBlackann

JBlackann · 2024-04-09

Hello,I have a circuit which uses the L6470 with a STM32F401. I based the circuit off of the development board, X-NUCLEO-IHM02A1 which has 2 L6470's on board. https://www.st.com/en/ecosystems/x-nucleo-ihm02a1.htmlThe X-NUCLEO-IHM02A1 circuit has a ...

JBlackann · 2023-06-29

Hello,I have a project that STM32CubeIDE told me to upgrade the file so I did. In the embedded software packages manager it shows, MCU Package STM32F4 Series 1.27.1. I believe it told me I was using version 1.26.1 or 1.26.2.After fixing the require...

JBlackann · 2021-07-29

Hello, I have an application where originally the STM32G071GB (128K) was designed in. Unfortunately there was no available stock of the STM32G071GB (128K). Compiling our code was slightly over the 64K when no optimization was used. Enabling optimi...

JBlackann · 2021-05-14

Hello, I have a product that connects to a computer via USB. I also have a test application that can be run on the computer as well. The test application on the PC can look for a default PID or one can type in a different PID and the application wi...

JBlackann · 2021-02-17

Hello,I have designed a board for testing devices. At the heart of the circuit is the STM32F401RET6. With a new circuit board, I can read across the 3.3V rail unpowered (to ground) and see a resistance of about 450 ohms. I was performing some testin...

JBlackann · 2021-06-21

Thanks for the suggestion. That worked great!!Now would you have any suggestions on how to possibly have multiple USB devices (with the same VID and PID) connected to a PC and then from an app (C# or other app) how to individually select that device...

JBlackann · 2021-02-17

Hello, I appreciate the response. I did some looking and the PA9 is listed as a 5V tolerant on the datasheet. I did some digging and found the following in the ST Document, "USB hardware and PCB guidelines using STM32 MCUs", App note 4879. It can b...

JBlackann · 2020-05-18

Apologizes, I am an idiot. I was thinking I had to click on a widget and then I would see the interaction for that widget, not all the interactions on that particular screen. My app seems to be working now.Thanks for taking the time to read.

JBlackann · 2020-01-09

Hello hastala, To be honest in the end for me it wasn't that difficult to get my board to connect to a PC and then see that it shows up. I am working on a USB custom HID device so i had to build the PC app side as well and then work on communicating...

JBlackann · 2020-01-08

Hello hastala, I am not sure if you would have seen my post about USB and the Nucleo - F401. If not take a look at the following link.https://community.st.com/s/question/0D50X00009XkWDLSA3/usb-hid-host-pcwindows-applicationI tried to document some o...

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L6470 Stepper Driver - Large cap on VS to ground destroyed??

Running debug and keep ending at Default_handler with differ IRQ_Handlers

Writing to memory beyond devices listed memory size, STM32G071GB (128K) vs STM32G071G8 (64K)

STM32F4 Change USB PID at boot time

Finding 3.3V rail unpowered to have a low resistance with STM32F401RET6

Re: STM32F4 Change USB PID at boot time

Re: Finding 3.3V rail unpowered to have a low resistance with STM32F401RET6

Re: Two different slider interactions for two different sliders

Re: NUCLEO64 USB HID not working ? getting HAL_OK but NO SIGNAL

Re: NUCLEO64 USB HID not working ? getting HAL_OK but NO SIGNAL