Posted on May 17, 2011 at 09:43There seems to be a limitation in using the scat_flash scatter loading file given by ST. The boot bank and non-boot bank sizes are initialised in the file 91x_init.s. After reset only the main flash is enabled with onl...
Posted on May 17, 2011 at 09:42run ur program from flash once. this will load the exception handlers in their appropriate locations in flash. from then on u can run ur programs from ram. but remember that when u want to change anything in 91x_vect.s...
Posted on May 17, 2011 at 09:41Only now i realised that no matter what memory we use, when an irq occurs the processor always goes to 0x18 (flash). this implies that no one can run programs that use interrupts, with an empty flash. Also, it means th...
Posted on May 17, 2011 at 09:41Thank u for the reply. I am really desperate to clear this bug. The screen shots are attached The file is just the startup file - 91x_init.s The problem is some unknown interrupt that occurs as soon as the interrupts a...
Posted on May 17, 2011 at 09:41 HI, I use the startup file for RVDK, supplied by ST Micro. For some programs, after executing the statement which changes the processor to system mode and enables the irq and fiq interrupts - MSR CPSR_c, Mod...
