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    I am using Keil C51 V3.96 (quite old) to develop the firmware for DS87C550. I can generate the code that runs correctly. But if I try to add some new & short codes, the progrm will run incorrectly. There...
  • rtxtiny problem
    If i enable round-robin task switch,would the rtx system command os_wait in any task ?
  • about rtxtiny
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  • Replacement for the 80c552
    Hi there! An old project of mine is runnining on a 80C552/30MHz (KBA, is the psot fix, I think). This processor is obsolete, but I need the speed (I think). The software was written by somebody else...
  • compiling EPROM firmware for NXP 80C552 Micro
    Hello, I have a board with NXP80C552 Micro init and the firmware gets programmed onto a EPROM chip. I need to modify the firmware and recompile and program it back to the EPROM. I am modifying...