Dear team,
My customers want to use EPI to connect external Flash and SDRAM. They have many questions. Please help to check them.
Because customers need to use the third-party file system fatfs, they want to use its unicode encoding. They need to include a unicode array close to 2M into the program. Customers now have some questions.
Assume：MSP432 expands flash, for example, it expands 32M flash.
1. Whether the off-chip flash can save the initialized array data.
2. Can the program be executed directly from the off-chip flash.
3. Will the addressing speed of the off-chip flash be slow or the reading and writing speed will be slow?
4. I found that, for example, SDRAM and flash can be expanded to a large extent, so without considering the cost of the product, there will be any problems if the expansion is too large. In addition to the power consumption, I would like to know the impact.
5. If I need to sleep MSP432 under low power consumption, do I not use SDRAM but use SRAM, because I can power SDRAM or SRAM alone, but I cannot refresh SDRAM because MSP432 is already dormant, so I need to use SRAM, am I right?
6. Can the EPI interface expand Flash and SRAM at the same time?
Thank you!
