martin/aqhomecontrol
Public Access
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

added initial wait routine.

Browse Source
This commit is contained in:
Martin Preuss
2025-04-29 00:34:53 +02:00
parent e1b2650221
commit 2357b63b42
2 changed files with 42 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
avr/common/0BUILD
View File

@@ -14,6 +14,7 @@
utils.asm utils.asm
utils_copy_from_flash.asm utils_copy_from_flash.asm
utils_copy_sdram.asm utils_copy_sdram.asm
utils_initial_wait.asm
utils_wait.asm utils_wait.asm
utils_wait_fixed.asm utils_wait_fixed.asm
utils_wait_pin.asm utils_wait_pin.asm

41
avr/common/utils_initial_wait.asm Normal file
View File

@@ -0,0 +1,41 @@
; ***************************************************************************
; copyright : (C) 2025 by Martin Preuss
; email : martin@libchipcard.de
;
; ***************************************************************************
; * This file is part of the project "AqHome". *
; * Please see toplevel file COPYING of that project for license details. *
; ***************************************************************************
; ---------------------------------------------------------------------------
; @routine Utils_InitialWait
;
; Initial wait to desync nodes.
;
; This routine waits for between 10 to 2560 milliseconds (derived from UID)
;
; @clobbers r16, r17, r18, r19, r20, r21, r22, X
Utils_InitialWait:
; setup initial wait loop
rcall Utils_ReadUid ; (R16, X)
clr r16
eor r16, r18
eor r16, r19
eor r16, r20
eor r16, r21
Utils_InitialWait_l1: ; wait R16 x 10 milliseconds
ldi r17, 200
Utils_InitialWait_l2: ; wait for 10ms
rcall Utils_WaitFor50MicroSecs ; (R22)
dec r17
brne Utils_InitialWait_l2
dec r16
brne Utils_InitialWait_l1
ret
; @end