About FA1234

FA1234 · 2024-10-08

I cannot get OTG_HS to communicate with a USB host, and I'm out of ideas. Any help would be greatly appreciated.The problem:I've instrumented HAL_PCD_IRQHandler to print whenever an interrupt occurs. Right after USBD_Start, I get:0x800 (USBSUSP)0x100...

FA1234 · 2024-08-16

Hello, I'm just evaluating the STM32H7R3Z8 for a new project. I'm having two issues, possibly with the STM32CubeMX, or maybe I'm just not understanding the part.1) No matter what I do, I cannot seem to enable PSSI. The combobox is grayed out with "Di...

FA1234 · 2024-10-31

Respin complete, but with the same results.- I can now run either with an external crystal (HSE) or the internal (HSI).- I've verified the differential impedance.Am I right in expecting the RXFLVL between the USBRST and ENUMDNE?

FA1234 · 2024-10-10

Does this mean HSI will not work, and it requires HSE? Can you point me to the document that says this?I was surprised that HSI48 (which is supposedly specifically for USB accuracy) is not routable to the PLL_USBPHY (either directly or through the PL...

FA1234 · 2024-09-18

Okay. Then if the programmer is just masking off the final 2 bits before writing to the device, I don't see how this can't be a bug in the programmer. I mean, if it were doing a by-1 shift, then maybe it's a start address issue in the QSPI flash, or ...

FA1234 · 2024-09-17

So your thinking is that when it says unaligned addresses aren't allowed and it will align for me, it's actually performing an internal by-1 byte shift, rather than just masking off the lowest 2 bits?

FA1234 · 2024-09-17

Can you share a quick patch of how you did this?

User statistics

User Activity

STM32H7RS USB_HS failure (Device Descriptor Request Failed)

Minimum Clock Speed, and enabling PSSI problem

Re: STM32H7RS USB_HS failure (Device Descriptor Request Failed)

Re: STM32H7RS USB_HS failure (Device Descriptor Request Failed)

Re: Issue with QSPI External Flash Loader Verification Functionality for STM32H745

Re: Issue with QSPI External Flash Loader Verification Functionality for STM32H745

Re: Issue with QSPI External Flash Loader Verification Functionality for STM32H745