About Grant Bt

Grant Bt · 2021-11-04

Probably elementary stuff, but am brand new to ARM and STM32. I'm using a USB stack libusb_stm32 for learning. In this stack, when data arrives from the host PC, a callback in the USB ISR runs a function of mine to put the data into my queue. In this...

Grant Bt · 2021-09-28

Yet another question on locating data, this time fixed in flash. I want to place some main application attributes at a fixed flash location so that my bootloader can learn about the installed app. I have had partial success. (For now this is for an S...

Grant Bt · 2021-08-24

This is a bit nit-picky, but it's confusing. For a USB experiment on an STM32F103, I'm seeing an odd clock setting that isn't used and wondering why it is this way. The USB application uses an 8MHz HSE crystal as per usual. RCC_OscInitTypeDef RCC_Osc...

Grant Bt · 2021-07-13

For the life of me I cannot understand what is being said in the first box:STM32Cube Firmware Library Package option The following actions are possible: * Copy all used libraries into the project folder STM32CubeMX copies to the user project folde...

Grant Bt · 2021-06-21

Hi gang. My application uses from 0 to 3 UARTs, or maybe USB CDC instead ... LOTS of end-user settable options. Even before I get to that, I'm not happy with my queue implementation that's to be used with UART (or CDC) Tx and Rx. I would love for th...

Grant Bt · 2024-07-08

Get a used one. I have several, including two of these: Ellisys USB Tracker Model 110bhttps://www.ebay.com/itm/204708517420 Edit: check to make sure that it supports the speed you are operating at.

Grant Bt · 2024-05-21

Andy,Assuming you really need the wear leveling, I found AN568 and AN798 both worth looking at. In my opinion, some of these are better for structures (AN568) and some better for individual bytes (AN798).https://www.silabs.com/documents/public/applic...

Grant Bt · 2023-08-30

In my case I can say that the email service used by ST (em7732.eu.khoros-mail.com) has a reputation issue with Google.I have a pre-filtering service and I can see in the logs that ST's service is sending the emails, that the pre-filtering is forwardi...

Grant Bt · 2023-07-12

I think by default you don't get them immediately, but I could be wrong. Go through all the options and double-check.

Grant Bt · 2023-07-12

I've been looking at the U5 as well and it seems they use/require the ThreadX middleware, at least for the CubeMX stuff. I have used libusb_stm32 on other STM32 parts and it's quite small and nice.

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USB on F103: ISRs, Disabling Interrupts and callbacks

Locate Constant Data in Flash at Fixed Address

Why does CubeMX "turn on" HSI if it's not referenced?

Can someone please explain to me this Code Generator option?

Trying to make a Queue module for multiple UARTs

Re: More USB Shenanigans : The Futility of EPENA.

Re: EEPROM Emulation - Virtual Addresses

Re: Not getting email notification for replies to my posts?

Re: Not getting email notification for replies to my posts?

Re: STM32U5 : Use FatFS and USB CDC VCP with FREERTOS