IF IMGMULTIXIP !
#define NKNAME NK
#define NKSTART 80100000
#define NKLEN 03F00000 ; 63MB (Max size, to match image_cfg.* files. This will be auto-sized)
#define RAMNAME RAM
#define RAMSTART 84000000
#define RAMLEN 01D00000 ; 29MB (Will be auto-sized from the end of NK)
;#define RAMSTART 82900000
;#define RAMLEN 03600000 ; 54MB
;-----------------------------------------------------
; NAME ADDRESS SIZE TYPE
;-----------------------------------------------------
$(NKNAME) $(NKSTART) $(NKLEN) RAMIMAGE
$(RAMNAME) $(RAMSTART) $(RAMLEN) RAM
ENDIF
求解NKSTART、NKLEN、RAMSTART、RAMLEN这四个参数具体是啥意思?