Hi Dears I have a very big problem.MCU's internal flash was full and i want execute application program of external SDRAM but i dont know how i can.
I write a boot program and with this program i can upgrade App in internal flash i use of AN10866(LPC1700 secondary USB bootloader) and now i want place app on external SDRAM
Ok, so how do you enable/configure the SDRAM normally? Do you have any examples for your board? Can you talk with the designer/vendor? Do you have a colleague or teacher more familiar with the board, or programming?
The SDRAM is volatile, where exactly is the code to be run coming from if the internal flash is full?
I wrote a simple prog(LED Blinking- without Interrupt) and then place BIN Code on SDCARD. Boot Prog in flash load bin code to SDRAM and then jump to SDRAM address and execute code. it was ok but my problem is interrupt because i can't place interrupt vector address in SDRAM.