Files
aqhomecontrol/avr/devices/n32/boot/boot.asm
2026-06-29 17:48:02 +02:00

157 lines
4.4 KiB
NASM

; ***************************************************************************
; copyright : (C) 2026 by Martin Preuss
; email : martin@libchipcard.de
;
; ***************************************************************************
; * This file is part of the project "AqHome". *
; * Please see toplevel file COPYING of that project for license details. *
; ***************************************************************************
; ***************************************************************************
; Source file for base system node on AtTiny 84
;
; This is for the maintenance system (i.e. the flash loader).
;
; All definitions and changes should go into this file.
; ***************************************************************************
.equ clock=1000000 ; Define the clock frequency
.nolist
.include "include/tn861Adef.inc" ; Define device ATtiny861A
.list
.include "common/calls.asm"
.include "common/utils_io.asm"
.include "devices/all/io_1.asm"
.include "version.asm"
.include "../defs.asm"
.include "devices/all/defs.asm"
#define COM_ACCEPT_ALL_DEST
; ***************************************************************************
; defines
; ---------------------------------------------------------------------------
; generic
.include "common/utils_wait.asm"
; ---------------------------------------------------------------------------
; firmware settings
; ---------------------------------------------------------------------------
; LED
.equ LED_DDR = DDRA
.equ LED_PORT = PORTA
.equ LED_PIN = PINA
.equ LED_PINNUM = PORTA3
; ***************************************************************************
; code segment
.cseg
.org 0x0000
; ---------------------------------------------------------------------------
; Reset and interrupt vectors
rjmp main ; 0x00: Reset vector Reset Vector
reti ; 0x01: INT0 External Interrupt 0
reti ; 0x02: PCI Pin Change Interrupt
reti ; 0x03: OC1A Timer/Counter1 Compare Match 1A
reti ; 0x04: OC1B Timer/Counter1 Compare Match 1B
reti ; 0x05: OVF1 Timer/Counter1 Overflow
reti ; 0x06: OVF0 Timer/Counter0 Overflow
reti ; 0x07: USI_START USI Start
reti ; 0x08: USI_OVF USI Overflow
reti ; 0x09: ERDY EEPROM Ready
reti ; 0x0a: ACI Analog Comparator
reti ; 0x0b: ADCC ADC Conversion Complete
reti ; 0x0c: WDT Watchdog Time-Out
reti ; 0x0d: INT1 External Interrupt 1
reti ; 0x0e: OC0A Timer/Counter0 Compare Match A
reti ; 0x0f: OC0B Timer/Counter0 Compare Match B
reti ; 0x10: ICP0 Interrupt Capture Event for Timer/Counter0
reti ; 0x11: OC1D Timer/Counter1 Compare Match D
reti ; 0x12: FAULT_PROT Timer/Counter1 Fault Protection
devInfoBlock: ; 12 bytes
devInfoManufacturer: .db 'A', 'Q', 'U', 'A'
devInfoId: .db DEVICEINFO_ID, 0
devInfoVersion: .db DEVICEINFO_VERSION, DEVICEINFO_REVISION ; version, revision
firmwareVersion: .db FIRMWARE_VARIANT_BOOT, FIRMWARE_VERSION_MAJOR
.db FIRMWARE_VERSION_MINOR, FIRMWARE_VERSION_PATCHLEVEL
firmwareStart: rjmp main ; will be overwritten when flashing
; ***************************************************************************
; main code
.org BOOTLOADER_ADDR
main:
rjmp bootLoader ; this routine is in modules/bootloader/main.asm
; ***************************************************************************
; includes
.include "common/utils_wait_fixed.asm"
.include "common/utils_copy_from_flash.asm"
.include "common/utils_copy_sdram.asm"
.include "modules/flash/defs.asm"
.include "modules/flash/eeprom.asm"
.include "modules/flash/io.asm"
.include "modules/flash/io_com2w.asm"
.include "modules/flash/flash1p.asm"
.include "modules/flash/flashxp.asm"
.include "modules/flash/flashprocess.asm"
.include "modules/flash/wait.asm"
.include "modules/bootloader/main.asm"
.include "modules/network/msg/defs.asm"
.include "modules/network/msg/crc.asm"
;.include "common/debug.asm"
systemSetSpeed:
.if clock == 8000000
ldi r16, (1<<CLKPCE)
ldi r17, 0
out CLKPR, r16
out CLKPR, r17
.endif
.if clock == 1000000
ldi r16, (1<<CLKPCE)
ldi r17, (1<<CLKPS1) | (1<<CLKPS0)
out CLKPR, r16
out CLKPR, r17
.endif
ret