• How to use 'userclass' to control code placement ?
    I am using C51 COMPILER V9.53.0.0 LX51 LINKER/LOCATER V4.66.30.0 and trying to use the "#pragma userclass" command within c51 source files, and the CLASSES linker command to position various...
  • Interrupt Issue
    Can I call function outside of ISR,from inside of an ISR which is call by other function(eg. from MAIN) in AT89S52 using C?
  • IAP issue
    I have been trying IAP mode of operation on an P89V51RD2FN using Keil and flash magic and found a program online but while simulating, the Program counter gets stuck on CALL 01FFh statement. Do I need...
  • OVERLAY issues
    hello, everyone: I have 2 C functions, 10 bytes DATA local variable for each, and the 2 DATA segments(?DT?func1?main, ?DT?func2?main)can be conbined by BL51 as _DATA_GROUP_ but when I use "#pragma src...
  • Optimization issues
    Hi all, I am working with Infineon XC866 controller. I am measuring the number of cycles consumed by the keil built in libraries. To optimize the speed i am selecting Favour speed in the project...