I am trying to do an IAP flash ,i am getting IAP return code in LPC2362 as 4 which means SRC_ADDR_NOT_MAPPED Source address is not mapped in the memory map. Count value is taken in to consideration where applicable. Where can i learn about this error, what does count value refer here.Kindly refer any document. what could be the possible problem NOTE the source is in address 0x400000c8 its on a word boundary on map file