About sternpost_0122

sternpost_0122 · 2025-02-17

I am working on a prototype board using the STM32H725VGT, based on an existing custom board where LWIP/RTOS Ethernet is already working. Since I have a preference to keep the same MCU for the next design, I am evaluating its ability to support an 8-...

sternpost_0122 · 2024-01-08

I am trying to setup my STM32H725 to use serial RAM in memory mapped mode. The memory I am using is:IS66WVS4M8ALL RAM DatasheetI have used IOC to setup the OCTOSPI1 as a QSPI peripheral and mapped CS IO0/1/2/3 CLK from the uC to the RAM.I have tried ...

sternpost_0122 · 2025-02-18

PSSI is interesting but I would like to generate the clock myself. I looked again at the FMC, I found that even though the options are disabled or not visible, they can still be used. For example with the ioc I couldn't turn off the address mux, and ...

sternpost_0122 · 2025-02-17

With DMA GPIO can I set data and toggle a clock pin? The only way I can think to do this is double the data up and use 9 bit wide, with the 9th bit being the clock toggle. Then double the data and flip the clock pin on the data? Is there a cleaner wa...

sternpost_0122 · 2024-01-08

Found a few topics:STM32H723 - Problem with Serial RAM in memory mapp... - Page 2 - STMicroelectronics Communitystm32h7 - STM32H723 - Problem with Serial RAM in memory mapped mode - Stack Overflow Seems that it just doesn't work.... I copied most of ...

sternpost_0122 · 2024-01-08

Thanks - I did try that but I wasn't sure how to send that command. So if I set the DataMode/AddreMode to none it will use HAL_OSPI_Command to send the command as well?

sternpost_0122 · 2024-01-08

Sure - so I was able to do that for the config sections and that helped a lot. Now I am stepping line by line towards the end. The write commands run (I will have a scope to test it) but the read commands hang the device. I do not know how I could de...

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STM32H725VGT - 8-bit DMA Bus, OctoSPI & FMC Peripheral Availability

Configuring OSPI in QSPI with Memory Mapped

Re: STM32H725VGT - 8-bit DMA Bus, OctoSPI & FMC Peripheral Availability

Re: STM32H725VGT - 8-bit DMA Bus, OctoSPI & FMC Peripheral Availability

Re: Configuring OSPI in QSPI with Memory Mapped

Re: Configuring OSPI in QSPI with Memory Mapped

Re: Configuring OSPI in QSPI with Memory Mapped