2024-01-11 07:55 PM
I struggled with the difference between STM32U5G9J-DK2 and STM32U5G9J-DK1. The STM32U5G9J-DK2 link to the STM website is not working or is missing. It seems to me the STM32U5G9J-DK2 is a newer, cheaper variant, but what is the difference with DK1? I guess the STM32U5A9J-DK has no audio and is an older model. Does CubeMX for STM32U5G9J-DK2 include Azure ThreadX/FileX/USBX just like Nucleo STM32U5A5.
The 2nd question is, is there a useful daughterboard that has an SD card for the Nucleo STM32U5A5?
Thanks
2024-01-12 06:11 AM
Hello,
The STM32U5G9J-DK1 and the STM32U5G9J-DK2 are completly different boards, the STM32U5G9J-DK1 is the same design as the STM32U5A9J-DK (the one with the round screen), the STM32U5G9J-DK2 is another design with a rectangular screen (you have a pic in the STM32cubeIDE). The product page, which I guess is where your link is pointing to, should open soon (end january?).
For the Azure projects, please check on github :
or on the STM32U5 software package page:
2024-01-12 06:33 AM
>> The 2nd question is, is there a useful daughterboard that has an SD card for the Nucleo STM32U5A5?
I personnaly don't know other solution than this kind of module:
2024-01-12 12:58 PM
I placed an order for DK2 from Digikey (158 ex-stocks now), and I found a picture in STM32CubeIDE (thanks), but no initial documentation kits; since it is new, I accept I would have to wait for it. It would be helpful to have a schematic. And BOM so I can experiment with memory access via Azure FileX while waiting for the actual documentation kit to be released. Since DK2 has already been released, could I have the schematic file kit?
In case the schematic is not available, then I was wondering if the DK2 memory circuit is the same as DK1.
2024-01-12 12:59 PM
Thanks, I think I have one lying around......
2024-01-15 12:59 AM
2024-01-18 03:24 AM - edited 2024-01-18 03:24 AM
Shame there is no PSRAM on the DK2, a bit limiting!
2024-01-18 08:13 AM
Acapo.1
Interestingly, I have worked on a few STM32 graphic cards for Automotive apps (mostly debugging), and most have external SRAM and FLASH (4-2 year old design). I wondered what the role of external SRAM actually do and what the consequence of not having external SRAM in the context of graphic use, but MCU does have a large SRAM bank build in but not a large as external SRAM. This explains the lower cost than DK1.
I'm learning in this area.
2024-05-15 09:06 AM
fyi, if more PRAM is critical, for lab evaluation, you may have a way to replace on the BGA24 footprint the OPI NOR by an OPI RAM (like APS25608N-OBR-BD/APS51208N-OBR-BD), but this would be only Octal, not Hexa PSRAM.
STM32U5A9J-DK/DK1 includes OPI/HPI PSRAM (APS512XXN-OBR-BG) on board
Regards
Alex