About RMand

RMand · 2023-11-14

I am trying to set up the on-board 512Mb AP PSRAM to have a 1K word linear read burst.Similar to the HSPI demo in the BSP example, I call the function "BSP_HSPI_RAM_Config16BitsOctalRAM(...)"with my configuration set to use a 1K word linear burst.How...

RMand · 2023-11-13

Page I of this document contains the top and bottom views of the STM32U5A9J-DK board.BUT...Page 17 shows a 'different' picture when describing the configuration of the board for using STLINK-V3E.Is there an updated version of this document that fixes...

RMand · 2023-10-23

I am trying to bring up the STM32U5A9J-DK wherein I can use the external NOR_FLASH over OctoSPI_1 and the external PSRAM over HSPI_1 -- both in memory mapped mode. I am trying to use the STM32CubeMX to generate the drivers but am having some difficul...

RMand · 2023-08-20

I am prototyping a neural net model on the STM32u5A9xx development kit that comes with a 64MB external NOR FLash and 64MB external PSRAM. I plan on using both in memory mapped mode for my project.I loaded my model into X-CUBE-AI (v 8.1.0) and analyze...

RMand · 2023-08-16

I am trying to bring up the MX25UM51245G NOR Flash connected to OctoSPI 1 on a STM32U5xx development board. I have implemented most of the actions specified in AN5050 to set up this NOR Flash.Since my use case does NOT require the ability to have the...

RMand · 2023-11-21

I am not sure how many more times I have to ask you the same question:Why is the application being FORCED TO USE THE HYBRID mode in HSPI?The way it is set up now, if the application choses NOT TO USE HYBRID MODE then this HAL driver DOES NOT GET THE ...

RMand · 2023-11-20

I do have a follow up question though.Should I set the memory type (i.e. hxspi1.Init.MemoryType) to 'HAL_XSPI_MEMTYPE_APMEM_16BITS' or 'HAL_XSPI_MEMTYPE_APMEM'? It is not clear to me what is being traded off between these two options. My understandi...

RMand · 2023-11-20

Hi Alex,Yes, I was able to get past this issue. For reasons that I cannot explain, the IOC file mapped the IO7 line to the wrong GPIO and it was a nightmare tracking it down. Once I got that resolved things are looking a lot more rosy now.Thanks for ...

RMand · 2023-11-20

HiThanks for your responses. Regarding question 3, I believe I incorrectly interpreted the output code and it is in fact correct.Regarding question 4:YES, I am aware that HSPI does support hybrid mode. But I am curious as to why the HAL 'ignores burs...

RMand · 2023-11-15

Hi KoutharThanks for your response but I do have some questions for you.How do I set '48 bytes' for the read wrap burst -- I do not see an option for this value in the driver files.Section 30.4.17 of RM0456 talks about managing the HSPI errors in mem...

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How to set up APS512XX RAM in 1K burst mode on the STM32U5A9J-DK board

UM_2967: Error in figures

Unable to use HSPI + OctoSPI to talk to PSRAM + NOR-FLASH (respectively)

X-CUBE-AI Cannot generate code for Tensor Flow Lite Model when using external FLASH and RAM

STM32U5A9 OctoSPI memory mapped (read only) with NOR FLASH triggers hard fault on first access.

Re: How to set up APS512XX RAM in 1K burst mode on the STM32U5A9J-DK board

Re: Unable to use HSPI + OctoSPI to talk to PSRAM + NOR-FLASH (respectively)

Re: Unable to use HSPI + OctoSPI to talk to PSRAM + NOR-FLASH (respectively)

Re: How to set up APS512XX RAM in 1K burst mode on the STM32U5A9J-DK board

Re: How to set up APS512XX RAM in 1K burst mode on the STM32U5A9J-DK board