374 lines
8.9 KiB
NASM
374 lines
8.9 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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; Source file for temperature sensor node on AtTiny 84
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;
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; This is for the full system (i.e. not the boot loader).
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;
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; All definitions and changes should go into this file.
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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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; PB1 3 12 PA1 COM-DATA
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; /RESET PB3 4 11 PA2 [OWI]
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; [KEY1] 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
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; --------
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;
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; ***************************************************************************
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.nolist
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.include "include/tn84def.inc" ; Define device ATtiny84
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.list
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.include "defs.asm"
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; ***************************************************************************
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; defines
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; ---------------------------------------------------------------------------
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; generic
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.equ clock=1000000 ; Define the clock frequency
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; ---------------------------------------------------------------------------
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; firmware settings including list of modules used
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#define FW_TYPE AQHOME_FW_TYPE_ATT84_TEMP1
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#define FW_MAIN_VERSION_HIGH 0
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#define FW_MAIN_VERSION_LOW 1
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#define MODULES_TIMER
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#define MODULES_COM
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#define MODULES_LED
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#define MODULES_TWI_MASTER
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;#define MODULES_LCD
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#define MODULES_SI7021
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.set MODULES_MASK = 0
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#ifdef MODULES_TIMER
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.set MODULES_MASK = MODULES_MASK | (1<<AQHOME_FW_MODULE_TIMER)
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#endif
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#ifdef MODULES_COM
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.set MODULES_MASK = MODULES_MASK | (1<<AQHOME_FW_MODULE_COM)
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#endif
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#ifdef MODULES_LED
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.set MODULES_MASK = MODULES_MASK | (1<<AQHOME_FW_MODULE_LED)
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#endif
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#ifdef MODULES_TWI_MASTER
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.set MODULES_MASK = MODULES_MASK | (1<<AQHOME_FW_MODULE_TWIMASTER)
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#endif
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#ifdef MODULES_LCD
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.set MODULES_MASK = MODULES_MASK | (1<<AQHOME_FW_MODULE_LCD)
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#endif
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#ifdef MODULES_SI7021
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.set MODULES_MASK = MODULES_MASK | (1<<AQHOME_FW_MODULE_SI7021)
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#endif
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; ---------------------------------------------------------------------------
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; defines for modules
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#define LCD_MINIMAL_FONT
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.equ VALUE_ID_TEMP1 = 0x01
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.equ VALUE_ID_HUM1 = 0x02
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; ---------------------------------------------------------------------------
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; COM module
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.equ COM_BIT_LENGTH = 52000 ; 104000=9600, 52000=19200, 26000=38400
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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_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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; code segment
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.cseg
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.org 000000
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; ---------------------------------------------------------------------------
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; Reset and interrupt vectors (will be removed as soon as we can flash data over COM)
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rjmp PC+0x500 ; Reset vector
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rjmp PC+0x500 ; EXT_INT0
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rjmp PC+0x500 ; PCI0
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rjmp PC+0x500 ; PCI1
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rjmp PC+0x500 ; WATCHDOG
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rjmp PC+0x500 ; ICP1
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rjmp PC+0x500 ; OC1A
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rjmp PC+0x500 ; OC1B
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rjmp PC+0x500 ; OVF1
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rjmp PC+0x500 ; OC0A
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rjmp PC+0x500 ; OC0B
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rjmp PC+0x500 ; OVF0
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rjmp PC+0x500 ; ACI
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rjmp PC+0x500 ; ADCC
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rjmp PC+0x500 ; ERDY
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rjmp PC+0x500 ; USI_STR
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rjmp PC+0x500 ; USI_OVF
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; ---------------------------------------------------------------------------
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; working system starts here.
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.org 0x0500
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rjmp main ; Reset vector
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reti ; EXT_INT0
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rjmp comIsrPcint0 ; PCI0
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reti ; PCI1
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reti ; WATCHDOG
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reti ; ICP1
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reti ; OC1A
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reti ; OC1B
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reti ; OVF1
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rjmp timerIrqOC0A ; OC0A
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reti ; OC0B
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reti ; OVF0
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reti ; ACI
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reti ; ADCC
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reti ; ERDY
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reti ; USI_STR
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reti ; USI_OVF
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; ***************************************************************************
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; includes
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.include "utils.asm"
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.include "timer.asm"
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.include "led.asm"
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.include "com.asm"
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.include "comproto.asm"
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.include "comproto_addr.asm"
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.include "comproto_stats.asm"
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.include "comproto_device.asm"
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.include "comproto_memstats.asm"
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.include "comproto_values.asm"
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;.include "comproto_debug.asm"
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;.include "comproto_twi.asm"
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.include "twimaster.asm"
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;.include "lcd.asm"
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.include "si7021.asm"
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; ***************************************************************************
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; data in SRAM
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.dseg
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sramTimerProtocolEverySec: .byte 2
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sramTimerEnqueueSendStats: .byte 2
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sramTimerEnqueueMemStats: .byte 2
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sramTimerEnqueueValues: .byte 2
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sramTimerSI7021Measure: .byte 2
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; ***************************************************************************
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; data in FLASH
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.cseg
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ledA3Flash: .db DDRA+0x20, PORTA+0x20, PINA+0x20, (1<<PORTA3)
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blinkPattern: .db 2, 50, 0xff, 0xff ; 1 short blink, 2s pause, restart
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;blinkPattern2: .db 10, 20, 0xff, 0xff ; 1 long blink, 2s pause, restart
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; ---------------------------------------------------------------------------
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; timer list
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; TODO: add flags (IF_COM_ADDR)
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timerList:
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; SRAM variable/counter routine flags secs (0=don't start or restart)
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.dw sramTimerProtocolEverySec, CPRO_OnEverySecond, 0, 1 ; every 1s
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.dw sramTimerEnqueueSendStats, enqueueSendStats, TIMER_FLAGS_IF_ADDR, 300 ; every 5m
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.dw sramTimerEnqueueMemStats, enqueueMemStats, TIMER_FLAGS_IF_ADDR, 120 ; every 2m
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.dw sramTimerSI7021Measure, SI7021_PeriodicMeasurement, 0, 30 ; every 30s
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.dw sramTimerEnqueueValues, Main_SendValueMsg, TIMER_FLAGS_IF_ADDR, 60 ; every 1m
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.dw 0 ; end of list
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.include "main.asm"
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; ---------------------------------------------------------------------------
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; Called on first time run, i.e. on system start. No arguments, no results.
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onSystemStart:
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#ifdef MODULES_COM
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; todo: setup once timer to start reclaiming address
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rcall CPRO_StartReclaimAddrProcedure
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#endif
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ret
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#ifdef MODULES_COM
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enqueueSendStats:
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ldi r16, 0xff ; send stats to everybody
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rcall CPRO_EnqueueComSendStats
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ldi r16, 0xff ; send stats to everybody
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rjmp CPRO_EnqueueComRecvStats
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#endif
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#ifdef MODULES_COM
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enqueueMemStats:
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ldi r16, 0xff ; send to everybody
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rcall CPRO_EnqueueMemStats
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#endif
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; ---------------------------------------------------------------------------
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; Called every 100ms. Add your routine calls here. No arguments, no results.
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onEvery100ms:
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#ifdef MODULES_LED
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; ticker for LED module
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ldi zl, LOW(ledA3Flash)
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ldi zh, HIGH(ledA3Flash)
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ldi yl, LOW(ledA3Sram)
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ldi yh, HIGH(ledA3Sram)
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rcall Led_Tick
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#endif
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ret
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; ---------------------------------------------------------------------------
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; Called every minute. Add your routine calls here. No arguments, no results.
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onEvery1m:
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#ifdef MODULES_COM
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lds r16, comAddress ; do we have an address assigned?
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tst r16
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breq onEvery1m_l1 ; no, do nothing
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; will later send this only every hour or so
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ldi r16, 0xff ; send device info to everybody
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rcall CPRO_EnqueueDevice
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onEvery1m_l1:
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#endif
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ret
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; ---------------------------------------------------------------------------
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; onPacketReceived:
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;
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; Called after a packet was received via COM module. Add your routine calls here.
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;
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; The packet will be removed from buffer in any case after return from this call.
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; IN:
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; - Y : pointer to received buffer
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; OUT:
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; - CFLAG: set if handled, cleared otherwise
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; USED: depending on called routines
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onPacketReceived:
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rcall CPRO_OnPacketReceived
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ret
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