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    Dear Sirs! I work at my first "standalone_C164_tool"and got in trouble,could someone please check if I'm right with this Hardware (Pin)-configuration: EA =high -for single chip mode (does Port0-levels...
  • Timer runs to fast with a 12 MHz crystal
    The crystal is a 12 Mhz //#include "F100GlobalDataTypeDefs.h" //#include "F100GlobalDef.h" //#include "F100GlobalVars.h" //#include "F100Functions.h" //#include "F100HW.h" void msecWait(uint...
  • Crystal
    Can anybody suggest me,from where can i get a crystal of 8.480000 MHz and 8.867230 MHZ. Kindly Reply!
  • How to program a one second timer using external crystal frequency ?
    I dunno how to program this timer. I have a ATMEL T89C51RD2 Microcontroller have 2 mode for internal timing (1)40Mhz for standard mode(default) (2)and 20Mhz in X2 Mode. However, I am using a 16Mhz...
  • inforamtion about 8255 interfacing with 8051 microcontrollers
    how to interface 8255 IC with 8051 microcontroller.