About Moritz Diller

Moritz Diller · 2019-07-17

I have built a device, in which the USB port is used for charging and firmware updates as well. During startup, the firmware checks if communication via USB is possible and switches to charging/update mode accordingly.Now when I connect a 1.0 A Apple...

Moritz Diller · 2018-07-26

Hi,I'm struggling to integrate a USB interface into a bootloader. The microcontroller always stalls the USB communication. To find the cause of this problem I have set up a simple project to compare the USB transfers and came to a point where I can't...

Moritz Diller · 2018-07-15

Posted on July 15, 2018 at 09:26Hi,SBSFU gives me the warning 'SECURE ENGINE INITIALIZATION WITH FACTORY DEFAULT VALUES' on every new power-up of the microcontroller. Is this behavior normal after a power-cycle or is anything not configure correctly...

Moritz Diller · 2018-07-08

Posted on July 08, 2018 at 12:58I'm trying to debug a project in TrueStudio, but get this error message during flashing:... which is the ''load'' instruction of the startup script.I think the cause of this error is, that the flash size of my program...

Moritz Diller · 2018-06-21

Posted on June 21, 2018 at 11:33CubeMX doesn't like a frequency of 12 MHz for HCLK with the STM32L433CC.HCLK is suggested to be at least 14.2 MHz, but I couldn't find any such requirement in the reference manual or datasheet.The F4 RM0090 mentions: ...

Moritz Diller · 2018-08-22

Hello Jocelyn,thank you for your answer.Regarding the IV/nonce issue, I think "not to provide a ready made solution" is just a lazy answer of your dev team. Why shouldn't you want to provide a ready-made solution? I don't want to offend anyone, but i...

Moritz Diller · 2018-07-29

Hi Mike,I also had some trouble with USB CDC in the last few weeks on an STM32L433CC.1) Modify MX_USB_DEVICE_Init(...) to wait until the USB connection is established#define USB_DEVICE_CONNECTION_TIMEOUT_MS 2000 ... /* USER CODE BEGIN USB_DEVICE_In...

Moritz Diller · 2018-07-27

MCU is STM32L433CC. Meanwhile, I found the solution: I used an old version of the HAL library in my project, whereas the reference project had the latest HAL version. I didn't figure out the exact cause for this error, but in the old HAL lib the USB ...

Moritz Diller · 2018-06-21

Posted on June 21, 2018 at 16:01On the other hand this code is not executed on the STM32L433CC, which doesn't have a register called GUSBCFG. I assume the 14.2 MHz constraint only applies to STM32L4 parts with USB OTG functionality.

Moritz Diller · 2018-06-21

Posted on June 21, 2018 at 15:32Yes, you are right. It would be more sensible to drive SYSCLK directly from HSE.I am not sure the part really can run at 12 MHz while using USB. The file 'stm32l4xx_hal_pcd.c' assumes a HCLK of at least 14.2 MHz:void ...

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STM32L433 stuck in USB interrupt with 1.0 A Apple charger

USB Stall Behavior (CubeMx, CDC)

SBSFU warning: Initialization with factory default values

Flash programming alignment error, STM32L433CC, TrueStudio

Minimum HCLK frequency for STM32L433CC in CubeMX

Re: SBSFU warning: Initialization with factory default values

Re: Nucleo-L4R5ZI USB CDC

Re: USB Stall Behavior (CubeMx, CDC)

Re: Minimum HCLK frequency for STM32L433CC in CubeMX

Re: Minimum HCLK frequency for STM32L433CC in CubeMX