• AT89S51 watchdog timer reset occured short than 16383
    Hi: I use Keil Simulator to debug my program,and I select Atmel's chip which named AT89S51, it has a watchdog timer in it. The watchdog timer will rise a reset after software not "feed dog" more than...
  • Getting Watchdog timer reset
    Hi, For executing asm instructions in C51 compiler(KEIL IDE) I did 1.Enable Generate Assembler SRC file and 2.Enable Assemble SRC File. After settings done, i had compiled and make the file without...
  • Double precision maths library
    Has anyone any idea where I can get a double precision maths library which will work with the Keil C51 compiler.
  • User Stack Pointer Corruption with Double Precision Arithmetic
    When using C167 simulation and double precision arithmetic, I ran into a problem. Things didn't seem to be working properly, so I inspected the generated assembly and found that the user stack pointer...
  • Strange reset state (WDTCON) on watchdog reset
    Hi all, Our app tests the watchdog by not servicing the watchdog but also setting a magic flag in RAM to see if the reset was caused by the test or for real. I made a small test app to test watchdog...