About DanielPi

DanielPi · 2024-06-20

Hi!I am writing a bootloader for an STM32H7S3L8, that received the application binary over UART and places it into flash, specifically on address 0x08008000, and I am getting hard faults when jumping to the address.If I "install" the application AND ...

DanielPi · 2024-06-19

Hello.I am developing a UART bootloader. Currently developing it on the Nucleo H7S3L8 that sports the STM32H7S3L8 microcontroller, 65K flash, ~450K something RAM.I have implemented the ol' JumpToApplication pattern that can be found all over the inte...

DanielPi · 2024-06-19

Hello.I am developing a development board (to sell to customers eventually), for which I want to have my own flashing dongle. Now, I have posted in another thread asking about the software that is in the ST-Link devices, and the response I got is tha...

DanielPi · 2024-05-29

Hello.I am creating a board with an STM32H7R3Z8J6. I am wondering what I should connect DVDD to? My intuition and "experience" says that this is the "Digital power supply pin", but it doesn't really make sense to make that distinction on this type of...

DanielPi · 2024-05-15

Hello.I am creating my own board with an STM32, and would like to also include my own custom ST LINK V3 on the board itself. Is it possible to get your hands on the firmware for ST-LINK V3? I have seen some unofficial attempts, like this: https://hac...

DanielPi · 2024-06-21

Hey Pavel. Thanks a bunch 

DanielPi · 2024-06-20

Interesting example that you provided, but if I do the same thing, I get an error on the line where I'm getting the address of the Application ResetHandler:void JumpToApp(void) { SCB_DisableICache(); SCB_DisableDCache(); __DSB(); __ISB(); ...

DanielPi · 2024-06-20

I have enabled the cache in the application I'm jumping to, but I'm not getting past the first instruction in the Application ResetHandler, so I don't think that matters right now...

DanielPi · 2024-06-20

Yeah that doesn't work either unfortunately... I don't need I Cache or D Cache for my bootloader (or at least I have no knowledge of anything in particular that I need them for)...It seems like I have to have D Cache enabled, in order to write to and...

DanielPi · 2024-06-20

Thanks @SofLit , unfortunately I didn't get it to work. Tried adding SCB_InvalidateICache() in several different places. Here is my code in brevity:#include "main.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include "stm32h7rsxx_hal...

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Need for invalidating cache when executing from flash that has been erased and written to

Getting HardFault and IBUSERR when jumping from bootloader to UART flashed application on STM32H7

Implementing SWD programming protocol for flashing STM32 chips

What to connect DVDD to on STM32H7?

DIY ST-LINK V3

Re: Need for invalidating cache when executing from flash that has been erased and written to

Re: Need for invalidating cache when executing from flash that has been erased and written to

Re: Need for invalidating cache when executing from flash that has been erased and written to

Re: Need for invalidating cache when executing from flash that has been erased and written to

Re: Need for invalidating cache when executing from flash that has been erased and written to