memory map mode using Octal SPI with HyperBus on STM32L4R9AI eval board
Hi all
im using the STM32L4R9AI evaluation board ,with IS66WVH8M8BLL HyperRam memomry.
with the help of AN5050 i try to communicate with this device in memomry map mode
and also toke for reference the memory map mode in STM32CubeH7 package (https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/STM32H735G-DK/Examples/OSPI/OSPI_HyperRAM_MemoryMapped))
i notice that during my memoey allocation operation the MCU not putting the data in the desire location and it not working as expected.
the behavior that i saw in that the data was written into the device but not in order.
Is it due to this device in PSRAM ?
i saw at ERRATA es0393-stm32l4rxxx @ 2.8.22 that OSPI not supported in PSRAM ,
but i am working with the HyperBus and also in the device DS also noted that it
using a self-refresh DRAM array organized ( so it is not regular PSRAM )
please see below my code that i'm using.
the FREQ is 120 MHz..
please find attached my code ,INIT, HperRam Device
appritiate any support
BR Alex