Hi thank you for the answer,

Today when I have initialized the Ride7 the debugging works so I think maybe the last day the program had an internal conflict and didn´t work.

Now I have another problem :), when I try debugging something, in order to learn how it works, I make a simple program and it builds correctly:

#include 
    
    
void main (void)
    {
    int epa;
    long result;
    int epa2;
    
    epa = 0;
    epa2 = 7;
    result = 56*3;
   
    }

When I debug it I try to see the variables and the watch window is:

epa -256 (0xFF00)
epa2 0 (0x0)
result 0 (0x0)

and the Debug Outbut is:
-starting debug process...
-loading...
-Run
-STACK UNDERFLOW //red colored
-write acces out of physical memory (address:FFFFH)
-write acces out of physical memory (address:FFFFH)
-Stop
-OUT OF CODE //red colored too

the ASM code is also very strange:

RCSTM8 COMPILER V2.24.09.238,  PROGRAMA_PRINCIPAL2    11/16/09  16:17:05

QCW(0x009638A0)

RCSTM8 COMPILER V2.24.09.238, COMPILATION OF MODULE PROGRAMA_PRINCIPAL2
OBJECT MODULE PLACED IN C:\Trabajos_Alberto\Trabajos ST\Prueba instalacion\programa_principal2.obj
COMPILER INVOKED BY: QUIET GENERATEDEPFILE CODE DB OJ(C:\Trabajos_Alberto\Trabajos ST\Prueba instalacion\programa_principal2.obj) PR(C:\Trabajos_Alberto\Trabajos ST\Prueba instalacion\programa_principal2.lst) PIN(C:\Archivos de programa\Raisonance\Ride\Inc;C:\Archivos de programa\Raisonance\Ride\Inc\ST7) STM8(SMALL) O(0,SIZE) NOINITSTATICVAR SMALLOBJECT ET(INT) 

stmt level    source
   1          #include 
   2              
   3              
   4          void main (void)
   5              {
   6   1          int epa;
   7   1          long result;
   8   1          int epa2;
   9   1          
  10   1          epa = 0;
  11   1          epa2 = 7;
  12   1          result = 56*3;
  13   1         
  14   1          }
RCSTM8 COMPILER V2.24.09.238
ASSEMBLY LISTING OF GENERATED OBJECT CODE

              ; FUNCTION main (BEGIN)
              ; SOURCE LINE # 4 
0000 5208                              SUB    SP,#008H
0002         ?EPILOG_0000:
              ; SOURCE LINE # 12 
0002 5B08                              ADD    SP,#008H
0004 81                                RET    
              ; epa          short  (size=2-Alg). Automatic variable  in AUTO
              ; result       long  (size=4-Alg). Automatic variable  in AUTO
              ; epa2         short  (size=2-Alg). Automatic variable  in AUTO

              ; FUNCTION main (END)

RCSTM8 COMPILER V2.24.09.238


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =      5    ----
   CONSTANT SIZE    =   ----    ----
   DATA SIZE        =   ----    ----
   PAGE0 SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

RCSTM8 COMPILATION COMPLETE.  0 WARNING,  0 ERROR

P.D. This things occur when I set "No optimization" if I set it the debug output is the same but the variables are "error(3) undefined symbol"

P.P.D I am using: Ride7 7.24.09.0251
Rkit 2.24.09.0238 with de patch

Hi Alberto,

Even if you selected "No optimization", there is no code to be generated, as the compiler recognizes that you only have affectations.

This is why you variables do not have any real existence.

If you really use your variables they will re-appear in, the debugger.

Regards,
Bruno

thank you bruno,

I try a little more complex program and still happens the same, why in the debugging session when I run it says "stack underflow" and "write access out of physical memory (addres FF00H)"?

maybe I have to change some configuration?, thank you!