• __C51__ undefined in uV4?
    I wrote and debugged a project on a workstation running uV3 (V3.30a) a while back. It contains a file that must be shared with other (von Neumann) processors that do not use Keil development tools...
  • #ifndef does not work properly
    Hello! I want to include the same headerfile in more than one sourcefile and of course have to take care that each Headerfile is included just once. I really have no clue, why this works for...
  • what's the meaning from ...
    Guys i need some help about rtx51-tiny function like 1. isr_set_run(),what's the diferrent with isr_set_ready()? 2. os_set_run(),what's the different with os_set_ready()? 3. when i call os_set_run...
  • What does this warning mean?
    When I 74compile my project I get these errors: **************************************** *** WARNING L1: UNRESOLVED EXTERNAL SYMBOL SYMBOL: ?C_STARTUP MODULE: gf.obj (GF) *** WARNING L1: UNRESOLVED...
  • What does "?" mean?
    Hi everyone, Happy new year! I have a quetion about Keil C51,can you give me a hand? Thank you in advance. *** WARNING L15: MULTIPLE CALL TO SEGMENT SEGMENT: ?PR?KEY?KEY CALLER1: ?PR?TIMER0?KEY...