• OT Corrupted internal flash on AT89C51ED2
    Sorry for OT, but I in big trouble! From time to time my devices with above mentioned processors corrupt content of internal program memory. Does anyone see this behavior od 80C51ED2? Dozsa...
  • AT89C51ED2: Selecting external vs internal flash
    I would like to set a (fuse?) bit to select the external Flash/PEROM as program memory instead of default Flash internal to the AT89C51. Is the BLJB bit the one I want to set? How do I set it?
  • Atmel AT89C51ED2 & user boot loader
    Hi, You do not know anybody, how configure processor, to start user's boot loader in At89C51ED2? On what address begins room for boot loader ? Documentation show in F800 and FC00.
  • AT89C51ED2
    I am trying to start a project using the AT89C51ED2 and uVision 2.03. However, cannot find header files or support files for the ED2 version of this 80C51. Can't find support at Keil website or at...
  • register window not updating for Atmel AT89C51ED2 in uVision 5
    Hi, I am trying to run a simple assembly 8051 program in uVision 5. While running the program, I found that the register window is not updating while single stepping. Could you help resolve the...