Dear All, I have written a c program like:
char Read(unsigned char ucdevice,unsigned char ucaddress) { int iNo_data = 0; // some code here }
C:0x8285 E4 CLR A C:0x8286 900137 MOV DPTR,#0x0137 C:0x8289 F0 MOVX @DPTR,A C:0x828A A3 INC DPTR C:0x828B F0 MOVX @DPTR,A
C:0x8285 E4 CLR A C:0x8286 900137 MOV DPTR,#0x0137 C:0x8287 0137 AJMP C:8037 C:0x8289 F0 MOVX @DPTR,A C:0x828A A3 INC DPTR C:0x828B F0 MOVX @DPTR,A
Is the FLASH is getting changed? No. The contents of the flash are
0x8285 E4 0x8286 90 0x8287 01 0x8288 37 0x8289 F0 0x828A A3 in both of your examples. Take a look the actual adresses. What changes is how the IDE interprets the contents. I would guess that the single-stepping messes up the interpretation algorithm somehow.
in both of your examples. Take a look the actual adresses. What changes is how the IDE interprets the contents. I would guess that the single-stepping messes up the interpretation algorithm somehow.
What processor are you using, and how are you debugging it?
...What changes is how the IDE interprets the contents. I would guess that the single-stepping messes up the interpretation algorithm somehow... How could it happen so? Is there any way to avoid this?what I have to do? ...Whatprocessor you are using... I am using c8051f120. ...How you are debugging... using EC2,connect to my target, download the code, place a breakpoint,run upto the breakpoint,goto the dissassembly window, perform step by step execution by pressing F11.
...I would guess that the single-stepping messes up the interpretation algorithm somehow.... No, the complete execution also behaves in the same manner.
It should be the problem of your driver, which cannot make the accurate location when break encountered. Of course, there will be (and should be) no difference in the flash programe. The mess comes with the misleading PC infomation to Keil.
Problem with driver? which driver? Is there any updated verison of that driver? If so, from where can I get that driver?
look up tool.ini in your keil directory. The file configs the toolset of your debugger.
what I have to do with this tool.ini?
http://www.silabs.com provides the current version of the drivers.