158 lines
3.6 KiB
NASM
158 lines
3.6 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2025 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/tn84def.inc" ; Define device ATtiny84
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.list
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.include "version.asm"
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.include "../defs.asm"
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.include "common/calls.asm"
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.include "common/utils_io.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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.include "modules/com2/defs.asm"
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.include "modules/comproto/defs.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 start ; Reset vector
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rjmp main ; Reset vector
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reti ; EXT_INT0
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reti ; 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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reti ; 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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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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