Posted on August 24, 2014 at 18:42 
1 I dont change any settings of SCB->VTOR because upper bank i use only for load new firmware image, that later will be written to low bank. Hard Faults occur at load image process, i.e. at original firmware, and only if load address -is in upper flash bank and low bank - all application tasks and interrupts work. So i see incompatibility of application work (RTOS, IT, etc) with flash program process.Application firmware is same, and Hard Faults occur at random points (most frequently in RTOS core). I think it is concerned with some CPU commands , witch RTOS use or DMA process.
2 I don't understand about ''swapping the high/low regions''- it will be very useful to change regions- i.e. start from bank1 or bank2? but i not find in datasheet how realize that.
An RTOS is likely to preclude the use of certain instructions. I'd probably look at memory usage, and exactly how/what you're writing. Reference Manual (RM0090) - SYSCFG_MEMRMP
Posted on August 24, 2014 at 23:17 
SYSCFG_MEMRMP and bit FB_MODE is not nonvolatile, so system will allways start from bank1, and later we may set FB_MODE to remap flash- is it so?
Please top post responses so they are visible. There is the BFB2 bit in the option bits, pretty sure the Note is wrong, as the second MB is at 0x08100000 not 0x08080000 as it is on 1MB 512+512KB type devices. I would generally still opt for a boot loader in the first 16KB, and have that do the mapping. I think you'd need to check what the BOOTx pins do, and how the System Loader execute/map memory in the second bank.
