318 lines
6.9 KiB
NASM
318 lines
6.9 KiB
NASM
; ***************************************************************************
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; Source file for base system node on AtTiny 84
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;
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; This is for the maintenance system (i.e. the flash 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
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; KEY1 PB2 5 10 PA3 LED
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; COM_ATTN PA7 6 9 PA4
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; 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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; list of modules to use
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#define BASE_SYSTEM
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#define WITH_FLASH
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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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; ---------------------------------------------------------------------------
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; EEPROM positions
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.equ EEPROM_OFFS_UUID = 0 ; 4 bytes (occupy total of 8 bytes for extensibility)
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.equ EEPROM_OFFS_COMADDR = 8 ; 1 byte
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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
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rjmp PC+0x20 ; Reset vector
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rjmp PC+0x20 ; EXT_INT0
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rjmp PC+0x20 ; PCI0
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rjmp PC+0x20 ; PCI1
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rjmp PC+0x20 ; WATCHDOG
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rjmp PC+0x20 ; ICP1
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rjmp PC+0x20 ; OC1A
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rjmp PC+0x20 ; OC1B
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rjmp PC+0x20 ; OVF1
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rjmp PC+0x20 ; OC0A
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rjmp PC+0x20 ; OC0B
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rjmp PC+0x20 ; OVF0
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rjmp PC+0x20 ; ACI
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rjmp PC+0x20 ; ADCC
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rjmp PC+0x20 ; ERDY
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rjmp PC+0x20 ; USI_STR
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rjmp PC+0x20 ; USI_OVF
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; ---------------------------------------------------------------------------
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; maintenance system starts here.
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.org 0x20
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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 "com.asm"
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.include "comproto.asm"
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.include "flash.asm"
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; ***************************************************************************
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; data in SRAM
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.dseg
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; ***************************************************************************
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; data in FLASH
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.cseg
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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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rcall Utils_SetupUid
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ldi r16, COM_MAINTENANCE_ADDR ; use fixed address in base system, smaller code
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sts comAddress, r16
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; rcall CPRO_StartReclaimAddrProcedure
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ret
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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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ret
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; ---------------------------------------------------------------------------
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; Called every second. Add your routine calls here. No arguments, no results.
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onEverySecond:
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rcall CPRO_OnEverySecond
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ret
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; ---------------------------------------------------------------------------
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; Called every 10 seconds. Add your routine calls here. No arguments, no results.
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onEvery10s:
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ret
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; ---------------------------------------------------------------------------
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; Called every 30 seconds. Add your routine calls here. No arguments, no results.
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onEvery30s:
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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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onEveryMinute:
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ret
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; ---------------------------------------------------------------------------
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; Called every 15 minutes. Add your routine calls here. No arguments, no results.
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onEvery15m:
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ret
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; ---------------------------------------------------------------------------
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; Called every 30 minutes. Add your routine calls here. No arguments, no results.
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onEvery30m:
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ret
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; ---------------------------------------------------------------------------
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; Called every hour. Add your routine calls here. No arguments, no results.
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onEvery1h:
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ret
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; ---------------------------------------------------------------------------
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; Called every 12 hours. Add your routine calls here. No arguments, no results.
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onEvery12h:
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ret
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; ---------------------------------------------------------------------------
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; Called every day. Add your routine calls here. No arguments, no results.
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onEvery1d:
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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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