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hello... thank you for your prompt reply...the frequency i need to detect is very low...around 1-4HZ... can a micrcontroller capable of detecting it? i do some testing ..and it seem to be cannot.... so do you know the limitation of it? i mean the maximum and minimum it can goes...i'm using a 12...

well, u see, the problem is that i have not fully grasped the concepts well and i would appreciate more elaboration and understanding on this. tq, bok

recently i'm doing a project on microcontroller...anyone with information on the range of frequency that a 80C31 microcontroller can count up to? i need to know the lowest frequency that the 80C31 can detect....and to write a source code to detect the input frequency? anyone can help?

hi, thank you for your reply...but can you please give me a few example... such as like 240ms = 240,000us = 3a890H so what is the Msb and Lsb, is that the Msb=3a and LSB= 90..is this the answer? thank you for your helps... thanks, bok

thank you for your reply melone, but i still very blur by what kind of information is stored inside the P1 and P2 in the below program code.... .equ wflg,00h ;bit flag used to notify main program .org 0000h mov sp,#30h ; set stack above bit addreeable area sjmp over...

i currently doing a project on microcontroller 8031 and testing a program 'pulse width measurement' from a book "the 8051 microcontroller architecture, programming, and application"... but i don't understand the terms least significant bytes and most significant byte...some one can...

i'm searching for Xasm51 documentation (manuals) or any regarding information on this assembler...anyone can help?

thnak you for the help Laffalot, i managed to do it but one thing is the screen of the lcd while displaying the chracters kept on flickering or keep on refreshing ...and it is rather significant ...do anyone know why and how to solve this problem...?

actually i don't have the manufacturer website address... idownloaded the data sheet from the vendor's website address where i purchase this LCD...the address is http://www.farnell.com/malaysia/index.html...you go under technical support and data sheet....key in the LCD code...142554...and there...

i currently doing a project interfacing a microcontroller 80C31 with LCD...but i can't get the lcd works ...i guess is the program code is not right...anyone can help?.... the LCD manufacturer stated here is Trident and the list number is TRIMODS1535...is it HD44780 standard compatible?