63 lines
1.6 KiB
NASM
63 lines
1.6 KiB
NASM
; ***************************************************************************
|
|
; copyright : (C) 2023 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. *
|
|
; ***************************************************************************
|
|
|
|
|
|
|
|
; ***************************************************************************
|
|
; code
|
|
|
|
|
|
.cseg
|
|
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; wait indefinately until ATTN line is high, send packet over wire, retry until successfull
|
|
;
|
|
; IN:
|
|
; - x : ptr to buffer to send
|
|
; OUT:
|
|
; - nothing
|
|
; REGS: (R16, R17, R18, R21, R22, R24, R25, X)
|
|
|
|
flashSendPacketUntilSuccess:
|
|
push xl
|
|
push xh
|
|
rcall COM2_SendPacketWithAttn ; (R16, R17, R21, R22, X)
|
|
pop xh
|
|
pop xl
|
|
brcc flashSendPacket_error
|
|
ret
|
|
flashSendPacket_error:
|
|
rcall flashWaitForAttnHigh ; (R16, R17, R18, R22, R24, R25, X)
|
|
rjmp flashSendPacketUntilSuccess
|
|
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; wait indefinately for free ATTN line
|
|
;
|
|
; IN:
|
|
; - nothing
|
|
; OUT:
|
|
; - nothing
|
|
; REGS: (R16, R17, R18, R22, R24, R25)
|
|
|
|
flashWaitForAttnHigh:
|
|
rcall com2WaitForAttnHigh ; (r17, r22)
|
|
brcc flashWaitForAttnHigh_stillLow
|
|
ret
|
|
flashWaitForAttnHigh_stillLow:
|
|
rcall flashWaitDependingOnUid ; (R16, R18, R22, R24, R25)
|
|
rjmp flashWaitForAttnHigh
|
|
|
|
|
|
|
|
|