68 lines
1.6 KiB
NASM
68 lines
1.6 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2023 by Martin Preuss
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; email : martin@libchipcard.de
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;
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; ***************************************************************************
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; * This file is part of the project "AqHome". *
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; * Please see toplevel file COPYING of that project for license details. *
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; ***************************************************************************
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; ***************************************************************************
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; code
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.cseg
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; ---------------------------------------------------------------------------
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; Write a FLASH_READY packet.
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;
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; IN:
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; - X : buffer to write to
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; OUT:
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; - nothing
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; MODIFIED REGS: R16, Z (R17, R18, R19, R20)
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flashWriteFlashReady:
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ldi r16, 0xff
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st X+, r16 ; dest address (unused)
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ldi r16, 12 ; msg code+src address+ten payload bytes
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st X+, r16 ; msg len
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ldi r16, CPRO_CMD_FLASH_READY
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st X+, r16 ; msg code
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ldi r16, COM2_MAINTENANCE_ADDR
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st X+, r16 ; src address (not used)
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; payload
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lds r16, flashUid
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st X+, r16
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lds r16, flashUid+1
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st X+, r16
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lds r16, flashUid+2
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st X+, r16
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lds r16, flashUid+3
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st X+, r16
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ldi zl, low(firmwareType*2)
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ldi zh, HIGH(firmwareType*2)
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lpm r16, Z+
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st X+, r16 ; firmwareType (low)
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lpm r16, Z+
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st X+, r16 ; firmwareType (high)
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lpm r16, Z+
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st X+, r16 ; firmwareVersion (low)
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lpm r16, Z+
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st X+, r16 ; firmwareVersion (high)
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ldi r16, LOW(PAGESIZE*2)
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st X+, r16
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ldi r16, HIGH(PAGESIZE*2)
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st X, r16
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sbiw xh:xl, 13
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rcall com2CalcAndAddChecksumByte ; (R16, R17, R18, R19, R20, X)
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sbiw xh:xl, 14
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ret
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