Hi All I have use function pointer array like this main.c uchar i; for(i = 0;i<END_COMMAND;i++) printf("%bu %x\n",i,Func_table[i]); cmd.h typedef void (*Func) (void); void init_func(void); void reset_func(void); void end_command(void); cmd.c Func Func_Table[] = { init_func, reset_func, end_command } void init_func(void){DO_SOMETHING} void reset_func(void){DO_SOMETHING} void end_command(void){DO_SOMETHING} When I run in Keil IDE Debug mode it can trace into code and print correct function address (Ex 0 ff00 1 ff10 2 ff20) ,but when I run into flash,all function address is print zero(ex 0 0 1 0 2 0) so I got reset when use this Func_Table why?? Thanks a lot
TYPE BASE LENGTH RELOCATION SEGMENT NAME ----------------------------------------------------- * * * * * * * D A T A M E M O R Y * * * * * * * REG 0000H 0008H ABSOLUTE "REG BANK 0" DATA 0008H 0005H UNIT _DATA_GROUP_ 000DH 0013H *** GAP *** BIT 0020H.0 0001H.1 UNIT _BIT_GROUP_ 0021H.1 0000H.7 *** GAP *** IDATA 0022H 0001H UNIT ?STACK * * * * * * * X D A T A M E M O R Y * * * * * * * XDATA 0000H 009CH UNIT ?XD?MPG450 XDATA 009CH 0028H UNIT _XDATA_GROUP_ XDATA 00C4H 0019H UNIT ?XD?_RS232_PROCESS?DEBUG XDATA 00DDH 0009H UNIT ?XD?_DMA_TASK_SCHEDULER?MPG450 XDATA 00E6H 0008H UNIT ?XD?DMA_TASK_EXECUTE?MPG450 XDATA 00EEH 0005H UNIT ?XD?_CHANGE_VIDEO_SIZE?FUNC XDATA 00F3H 0003H UNIT ?XD?EXINT1_INT_ROUTINE?MPG450 XDATA 00F6H 0003H UNIT ?XD?DRAMC_BIST?FUNC XDATA 00F9H 0002H UNIT ?XD?SET_CHECKSUM?FUNC XDATA 00FBH 0001H UNIT ?XD?CPU_UR0_INIT?CPU_API XDATA 00FCH 0001H UNIT ?XD?_PDMAC_START?MPG450 XDATA 00FDH 0001H UNIT ?XD?MAIN?MPG450 XDATA 00FEH 0001H UNIT ?XD?RS232_INPUT?DEBUG BL51 BANKED LINKER/LOCATER V5.03 07/27/2005 10:38:22 PAGE 2 XDATA 00FFH 0001H UNIT ?XD?END_COMMAND?USERCMD * * * * * * * C O D E M E M O R Y * * * * * * * CODE 0000H 0003H ABSOLUTE CODE 0003H 000CH UNIT ?PR?SET_CHECKSUM?FUNC CODE 000FH 0001H UNIT ?PR?INIT_MPG450?USERCMD CODE 0010H 0001H UNIT ?PR?RESET_MPG450?USERCMD 0011H 0002H *** GAP *** CODE 0013H 0003H ABSOLUTE CODE 0016H 07CAH UNIT ?PR?_RS232_PROCESS?DEBUG CODE 07E0H 07B2H UNIT ?PR?DMA_TASK_EXECUTE?MPG450 CODE 0F92H 054AH UNIT ?PR?_DMA_TASK_SCHEDULER?MPG450 CODE 14DCH 0365H UNIT ?PR?PRINTF?PRINTF CODE 1841H 023FH UNIT ?CO?DEBUG CODE 1A80H 0194H UNIT ?PR?_CHANGE_VIDEO_SIZE?FUNC CODE 1C14H 0194H UNIT ?C?LIB_CODE CODE 1DA8H 0135H UNIT ?PR?RS232_INPUT?DEBUG CODE 1EDDH 010AH UNIT ?PR?WDT_RESET?WDTC CODE 1FE7H 00C8H UNIT ?PR?EXINT1_INT_ROUTINE?MPG450 CODE 20AFH 009AH UNIT ?PR?_PDMAC_START?MPG450 CODE 2149H 0090H UNIT ?PR?SYSTEM_INIT?MPG450 CODE 21D9H 008CH UNIT ?C_C51STARTUP CODE 2265H 0085H UNIT ?C_INITSEG CODE 22EAH 0070H UNIT ?PR?MAIN?MPG450 CODE 235AH 0043H UNIT ?PR?BUS_READY?FUNC CODE 239DH 0041H UNIT ?PR?SHOW_MENU?DEBUG CODE 23DEH 0037H UNIT ?PR?DRAMC_BIST?FUNC CODE 2415H 0036H UNIT ?PR?WDTC_INIT?WDTC CODE 244BH 0034H UNIT ?PR?CPU_RAM_INIT?CPU_API CODE 247FH 0032H UNIT ?PR?CPU_UR0_INIT?CPU_API CODE 24B1H 0027H UNIT ?PR?PUTCHAR?PUTCHAR CODE 24D8H 0026H UNIT ?CO?MPG450 CODE 24FEH 0026H UNIT ?PR?END_COMMAND?USERCMD CODE 2524H 001DH UNIT ?PR?TOINT?TOINT CODE 2541H 000AH UNIT ?PR?_GETKEY?_GETKEY CODE 254BH 0007H UNIT ?PR?CPU_EXINT1_SET?CPU_API
Sorry May anyone tell me what is the diffent between this two linker map The fisrt one cann't run any thing!! The second will get reset when use function pointer table The source code only has one place diffent the first add [ code ] key word !! Thanks a lot
I think nobody is able to figure out your programming problem from the posted MAP files. When you get a RESET, you should analyse the problem using the debugger. I suggest that you start with a small example frist. Take a look to A51.PDF, Chapter 9, Using the Overlay Control, Pointer to a Function in Arrays or Tables. Reinhard
Thanks The Code I have run very well before, I just distributed code into many c file add [code] key world cann't run any, I add [NOOVERLAY],the result is the same>< Thanks again,I will try to read DOC more