We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hi all. Can anyone help with the following strange problem? I have a target with T89C51RD2 and external (on board) SRAM and parallel EEPROM. I also use the RTX51-full OS. For the past few days my code start to run very strange. I pass a variable to a function (void func(char ch)) and use it there. Somewhere in this function I send this variable to other function and the variable value change before he gets to the other function. In some cases I solved the problem by declaring local variable in each function and pass the coming variable to the local one. For example: Void func(char _ch) { char ch = _ch; : } This is NOT a solution for this case. Can anyone know what's the problem here? Thanks a lot, Reuven
Just out of my curiosity, are you using EEPROM as part of your XDATA? If this is the case, you need special functions to write to EEPROM locations and prevent BL51 from locating relocatable data segments into this memory area. You can check this by looking into your .m51 file.