5767c1307d
- increased waiting time after lowering ATTN line - lengthten stop bit for cleaner frames (now recognized by PulseView) - count "NOTFORME" conditions - introduce definition COM_HALFBIT_LENGTH (I dont' trust value calculations in avrasm)
83 lines
2.4 KiB
NASM
83 lines
2.4 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2024 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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;
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; AtTiny85
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; --------
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; /RESET PB5 1 8 VCC
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; OWI PB3 2 7 PB2 COM-ATTN
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; LED PB4 3 6 PB1 COM-DATA
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; GND 4 5 PB0 LEDSTRIP
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; --------
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;
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; ***************************************************************************
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.equ BOOTLOADER_ADDR = 0xd00
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.equ FIRMWARE_VARIANT_BOOT = 0
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.equ FIRMWARE_VARIANT_LEDSTRIPS = 1
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; ---------------------------------------------------------------------------
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; LED module
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.equ LED_SIMPLE_ONTIME = 3
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.equ LED_SIMPLE_OFFTIME = 30
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.equ LED_SIMPLE_DDR = DDRB
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.equ LED_SIMPLE_PORT = PORTB
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.equ LED_SIMPLE_PINNUM = PORTB4
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; ---------------------------------------------------------------------------
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; COM module
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.equ COM_BIT_LENGTH = 52000 ; 104000ns=9600, 52000ns=19200, 26000ns=38400
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.equ COM_HALFBIT_LENGTH = 26000 ; see https://de.wikipedia.org/wiki/Universal_Asynchronous_Receiver_Transmitter
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.equ COM_DDR_DATA = DDRB
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.equ COM_PORT_DATA = PORTB
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.equ COM_PIN_DATA = PINB
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.equ COM_PINNUM_DATA = PORTB1
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.equ COM_DDR_ATTN = DDRB
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.equ COM_PORT_ATTN = PORTB
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.equ COM_PIN_ATTN = PINB
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.equ COM_PINNUM_ATTN = PORTB2
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.equ COM_IRQ_ADDR_ATTN = PCMSK
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.equ COM_IRQ_BIT_ATTN = PCINT2 ; bit 2 in PCMSK0 (PCINT2)
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.equ COM_IRQ_GIFR_ATTN = PCIF
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.equ COM_IRQ_GIMSK_ATTN = PCIE
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; ---------------------------------------------------------------------------
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; 1-Wire Master
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;
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.equ OWI_DDR = DDRB
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.equ OWI_PORTOUT = PORTB
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.equ OWI_PORTIN = PINB
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.equ OWI_PINNUM = PORTB3
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; ---------------------------------------------------------------------------
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; SK6812
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.equ SK6812_DDR = DDRB
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.equ SK6812_PORT = PORTB
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.equ SK6812_PINNUM = PORTB0
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