Mercurial > public > mk2
view code_part1/OSTC_code_asm_part1/spbrgselect.inc @ 443:4c7f304de294
BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
author | JeanDo |
---|---|
date | Wed, 10 Aug 2011 21:53:17 +0200 |
parents | 96a35aeda5f2 |
children |
line wrap: on
line source
RoundResult SET 0 ; Rounding function. RoundResult = Round(aa/bb) Round macro aa,bb LOCAL rr = aa/bb LOCAL d1 = aa - rr*bb LOCAL d2 = (rr+1)*bb - aa RoundResult = rr if d1 >= d2 RoundResult++ endif endm AbsResult SET 0 Abs macro nr if nr>=0 AbsResult = nr else AbsResult = -nr endif endm Round xtal,(16*baud) spbrg_value EQU RoundResult-1 Round xtal,(16*(spbrg_value+1)) baud_real EQU RoundResult Abs(baud_real-baud) errpercent EQU AbsResult*100/baud if errpercent > 4 ERROR big error in baudrate: #v(errpercent)% endif if errpercent >= 2 messg baudrate not exact: #v(errpercent)% endif