
Originally Posted by
savnik
I use BF199 and not 2N3904(as show at picture).
The same circuit work on 16f876a.
I believe the problem is with the configurations
BF 199 has a "special" pinout ( b-e-c )... not the same as 2N3904 ... if my souvenirs are good ...
and hfe is far lower than the 3904 ... ( I've just measured ~ 50 @ 2.5 ma on some of mines )
the Only differences between 876 and 877 is the Port number ... as you do not use PORTD and PORTE ( I hope ...) , you can directly program the 877 with the 876 Hex !!!
Alain
Last edited by Acetronics2; - 15th May 2008 at 12:33.
************************************************** ***********************
Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
************************************************** ***********************
IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
*****************************************
Bookmarks