About gfxfloro

gfxfloro · 2023-01-17

Hi,I am trying to have data at a specific location in flash. To do this I have defined my section in the linker script as follows: .info_data 0x08004674 : { . = ALIGN(4); KEEP(*(.info_data)) . = ALIGN(4); } >FLASHwith FLASH starting ...

gfxfloro · 2023-01-10

Hi,I am trying to set the write protection on my STM32G071 uC. I found the explanation here on how to do it in code. However once HAL_FLASH_OB_Launch is executed, the debugger loses connection and the uC is bricked. I tried to get a connection again ...

gfxfloro · 2022-10-06

Hi,I am trying to use the STM32Cryptography library to verify the signature of a flash segment, using RSA Encryption and 3072 bit length keys.The signature is generated by a python script and appended to the hex file. The signature has a length of 38...

gfxfloro · 2022-07-12

Hi,I am trying to set up two timers so that they generate a PWM with the second timer being 1/4 phase past the first one. I am using an STM32F446.I have the second set up as slave and triggered by the OCREF2 of timer 1, this should then generate a re...

gfxfloro · 2022-06-29

Hi,I am trying to use the ROM Bootloader on an STM32G071 Nucleo to upload code to the board. However erasing and writing to flash is not acknowledged by the G071. Other commands like reading from memory are acknowledged and return the correct data.I ...

gfxfloro · 2023-01-17

Ah no I put it somewhere inbetween. Now I placed it after everything that mentions FLASH even the RAM at> FLASH part, now it works.I would have never guessed that the placement in the file would have an effect.Thanks!

gfxfloro · 2023-01-10

Right so I thought if the option bytes were already programmed as they were, HAL_OK would not be returned and I would catch that with the for(;;), however after looking into the function that does not seem to be the case.Right now the program seems t...

gfxfloro · 2023-01-10

So if it does not hit a breakpoint, the program would have started again and then get stuck in the while loop after programming again. At this point I should have been able to get a connection again right?

gfxfloro · 2023-01-10

This code was just to test the mechanism. I placed breakpoints before and after, so the intention was not to have it run every time I start the uC, just this once. I forgot to include the while(1), which cubemx generates so it shouldn't loop through ...

gfxfloro · 2022-07-14

I accidentally set active high instead of PWM which seems to work as well. Also it seems to be important to first call HAL_TIM_PWM_Start(...) for the slave timer, before the master timer

User statistics

User Activity

Placing data at a specific section causes extreme size increase

Launching option bytes bricks the MCU

Crypto library RSA Signature errors

Unable to set two PWMs to a fixed phase difference

Erasing and writing flash by Bootloader fails

Re: Placing data at a specific section causes extreme size increase

Re: Launching option bytes bricks the MCU

Re: Launching option bytes bricks the MCU

Re: Launching option bytes bricks the MCU

Re: Unable to set two PWMs to a fixed phase difference