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)
136 lines
3.6 KiB
NASM
136 lines
3.6 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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;
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; AtTiny84
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; --------
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; VCC 1 14 GND
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; PB0 2 13 PA0
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; CNY70-K PB1 3 12 PA1 COM-DATA
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; /RESET PB3 4 11 PA2
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; AUX PB2 5 10 PA3 LED
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; COM_ATTN PA7 6 9 PA4 TWI-SCL
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; TWI-SDA PA6 7 8 PA5 CNY70-C
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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_TEMP_WINDOW = 1
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; ---------------------------------------------------------------------------
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; LED module
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.equ LED_SIMPLE_ONTIME = 2
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.equ LED_SIMPLE_OFFTIME = 30
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.equ LED_SIMPLE_DDR = DDRA
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.equ LED_SIMPLE_PORT = PORTA
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.equ LED_SIMPLE_PINNUM = PORTA3
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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 = DDRA
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.equ COM_PORT_DATA = PORTA
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.equ COM_PIN_DATA = PINA
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.equ COM_PINNUM_DATA = PORTA1
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.equ COM_DDR_ATTN = DDRA
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.equ COM_PORT_ATTN = PORTA
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.equ COM_PIN_ATTN = PINA
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.equ COM_PINNUM_ATTN = PORTA7
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.equ COM_IRQ_ADDR_ATTN = PCMSK0
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.equ COM_IRQ_BIT_ATTN = 7 ; bit 7 in PCMSK0
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.equ COM_IRQ_GIFR_ATTN = PCIF0
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.equ COM_IRQ_GIMSK_ATTN = PCIE0
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; ---------------------------------------------------------------------------
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; TWI master module
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;.equ TWI_BIT_LENGTH = 10000 ; 100000 and 200000 works for display: 10000, 100000, 200000
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.equ TWI_BIT_LENGTH = 1 ; 10, 100, 500, 100000 and 200000 works for display: 10000, 100000, 200000
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.equ TWI_DDR_SCL = DDRA
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.equ TWI_PORT_SCL = PORTA
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.equ TWI_PIN_SCL = PINA
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.equ TWI_PINNUM_SCL = PORTA4
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.equ TWI_DDR_SDA = DDRA
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.equ TWI_PORT_SDA = PORTA
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.equ TWI_PIN_SDA = PINA
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.equ TWI_PINNUM_SDA = PORTA6
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; ---------------------------------------------------------------------------
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; LCD module
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.equ LCD_TWI_ADDRESS = 0x3c
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; ---------------------------------------------------------------------------
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; BMP 280
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.equ BMP280_ADDR = 0x76
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; ---------------------------------------------------------------------------
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; SI 7021
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.equ SI7021_ADDR = 0x40
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; ---------------------------------------------------------------------------
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; ADC/CNY70
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.equ CNY70_PORT_LED = PORTB
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.equ CNY70_DDR_LED = DDRB
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.equ CNY70_PINNUM_LED = PORTB1
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.equ CNY70_PORT_ADC = PORTA ; adc5
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.equ CNY70_DDR_ADC = DDRA
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.equ CNY70_PINNUM_ADC = PORTA5
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.equ CNY70_MUX_ADC = MUX5
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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 = PORTB2
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