I would like to use MDMA on Cortex M4 to move data from DDR to SRAM in order to overcome the SRAM size limitation, especially in Ecosystem 6 secure context when a SYSRAM bank is dedicated to OPTEE.
My idea is to move to DDR some data structures used by code running on Cortex M4 and, when needed by the code, to use MDMA to move such data from DDR to SRAM and then to unload such same structures from SRAM to DDR.
I found that MDMA is the preferred way to move data DDR <-> SRAM, but it isn't supported by STM32 MCUs Embedded Software.
https://wiki.stmicroelectronics.cn/stm32mpu/wiki/MDMA_internal_peripheral#Software_frameworks_and_drivers
Do you have any suggestion about how to proceed ?
