157 lines
4.4 KiB
NASM
157 lines
4.4 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2026 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 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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.equ clock=1000000 ; Define the clock frequency
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.nolist
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.include "include/tn861Adef.inc" ; Define device ATtiny861A
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.list
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.include "common/calls.asm"
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.include "common/utils_io.asm"
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.include "devices/all/io_1.asm"
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.include "version.asm"
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.include "../defs.asm"
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.include "devices/all/defs.asm"
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#define COM_ACCEPT_ALL_DEST
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; ***************************************************************************
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; defines
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; ---------------------------------------------------------------------------
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; generic
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.include "common/utils_wait.asm"
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; ---------------------------------------------------------------------------
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; firmware settings
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; ---------------------------------------------------------------------------
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; LED
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.equ LED_DDR = DDRA
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.equ LED_PORT = PORTA
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.equ LED_PIN = PINA
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.equ LED_PINNUM = PORTA3
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; ***************************************************************************
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; code segment
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.cseg
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.org 0x0000
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; ---------------------------------------------------------------------------
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; Reset and interrupt vectors
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rjmp main ; 0x00: Reset vector Reset Vector
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reti ; 0x01: INT0 External Interrupt 0
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reti ; 0x02: PCI Pin Change Interrupt
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reti ; 0x03: OC1A Timer/Counter1 Compare Match 1A
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reti ; 0x04: OC1B Timer/Counter1 Compare Match 1B
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reti ; 0x05: OVF1 Timer/Counter1 Overflow
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reti ; 0x06: OVF0 Timer/Counter0 Overflow
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reti ; 0x07: USI_START USI Start
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reti ; 0x08: USI_OVF USI Overflow
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reti ; 0x09: ERDY EEPROM Ready
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reti ; 0x0a: ACI Analog Comparator
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reti ; 0x0b: ADCC ADC Conversion Complete
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reti ; 0x0c: WDT Watchdog Time-Out
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reti ; 0x0d: INT1 External Interrupt 1
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reti ; 0x0e: OC0A Timer/Counter0 Compare Match A
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reti ; 0x0f: OC0B Timer/Counter0 Compare Match B
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reti ; 0x10: ICP0 Interrupt Capture Event for Timer/Counter0
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reti ; 0x11: OC1D Timer/Counter1 Compare Match D
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reti ; 0x12: FAULT_PROT Timer/Counter1 Fault Protection
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devInfoBlock: ; 12 bytes
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devInfoManufacturer: .db 'A', 'Q', 'U', 'A'
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devInfoId: .db DEVICEINFO_ID, 0
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devInfoVersion: .db DEVICEINFO_VERSION, DEVICEINFO_REVISION ; version, revision
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firmwareVersion: .db FIRMWARE_VARIANT_BOOT, FIRMWARE_VERSION_MAJOR
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.db FIRMWARE_VERSION_MINOR, FIRMWARE_VERSION_PATCHLEVEL
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firmwareStart: rjmp main ; will be overwritten when flashing
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; ***************************************************************************
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; main code
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.org BOOTLOADER_ADDR
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main:
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rjmp bootLoader ; this routine is in modules/bootloader/main.asm
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; ***************************************************************************
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; includes
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.include "common/utils_wait_fixed.asm"
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.include "common/utils_copy_from_flash.asm"
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.include "common/utils_copy_sdram.asm"
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.include "modules/flash/defs.asm"
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.include "modules/flash/eeprom.asm"
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.include "modules/flash/io.asm"
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.include "modules/flash/io_com2w.asm"
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.include "modules/flash/flash1p.asm"
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.include "modules/flash/flashxp.asm"
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.include "modules/flash/flashprocess.asm"
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.include "modules/flash/wait.asm"
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.include "modules/bootloader/main.asm"
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.include "modules/network/msg/defs.asm"
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.include "modules/network/msg/crc.asm"
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;.include "common/debug.asm"
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systemSetSpeed:
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.if clock == 8000000
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ldi r16, (1<<CLKPCE)
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ldi r17, 0
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out CLKPR, r16
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out CLKPR, r17
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.endif
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.if clock == 1000000
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ldi r16, (1<<CLKPCE)
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ldi r17, (1<<CLKPS1) | (1<<CLKPS0)
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out CLKPR, r16
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out CLKPR, r17
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.endif
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ret
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