view code_part1/OSTC_code_asm_part1/spbrgselect.inc @ 675:0211d9b9f0ca

NEW: CF70: Safety Stop Duration [s] NEW: CF71: Safety Stop Start Depth [m] NEW: CF72: Safety Stop End Depth [m] NEW: CF73: Safety Stop Reset Depth [m]
author heinrichsweikamp
date Mon, 10 Dec 2012 22:00:37 +0100
parents 96a35aeda5f2
children
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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