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view src/wait.asm @ 582:b455b31ce022

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work on 2.97 stable
author heinrichsweikamp
date Mon, 26 Feb 2018 16:40:28 +0100
parents 653a3ab08062
children ca4556fb60b9
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;=============================================================================
;
;   File wait.asm														V2.98
;
;   Wait routines
;
;   Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved.
;=============================================================================
; HISTORY
;   2004-01-31 : [chsw] Initial version.
;   2007-05-11 : Updated (OSTC code).
;   2011-10-18 : [mH] Timings tested with oscilloscope

#include "hwos.inc"

basic	CODE

; =============================================================================
; WAIT 1 MILLISECOND   (Not exact: 1,008ms +/- 30,5µs + worst case ISR latency)
; =============================================================================

	global	WAITMSX
WAITMSX:
	movwf	wait_counter
WAITMSX2:
	setf	TMR5H
	movlw	.255-.32 			;32 x 31,5µs = 1,008ms
	movwf	TMR5L
	bcf		PIR5,TMR5IF			; Clear flag
WAITMSX3:
	btfss	PIR5,TMR5IF
	bra		WAITMSX3			; Wait loop
	decfsz	wait_counter,F
	bra		WAITMSX2
	return

;=============================================================================

	END