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avr: added device "minimal" (minimal example for a device using AqOS4Avr).

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This commit is contained in:
Martin Preuss
2026-04-14 23:50:29 +02:00
parent 5ad304b988
commit 9d4e24222c
9 changed files with 519 additions and 0 deletions
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1
avr/devices/0BUILD
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s03 s03
t03 t03
t04 t04
minimal
</subdirs> </subdirs>
</gwbuild> </gwbuild>

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avr/devices/minimal/.gitignore vendored Normal file
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*.eep.hex
*.obj

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avr/devices/minimal/0BUILD Normal file
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<?xml?>
<gwbuild>
<subdirs>
boot
main
</subdirs>
<extradist>
defs.asm
README
</extradist>
</gwbuild>

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avr/devices/minimal/README Normal file
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Minimal
=======
- Role: Example for minimal system
- MCU: AtTiny84
- Frequency: 1MHz
- Connection: RJ45
- COM: COM2W
- Predecessor: none
- Periphery: none

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avr/devices/minimal/boot/0BUILD Normal file
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<?xml?>
<gwbuild>
<target type="AvrHexFile" name="minimal_boot" >
<includes type="avrasm" >
-I $(builddir)
-I $(srcdir)
-I $(topsrcdir)/avr
-I $(topbuilddir)/avr
</includes>
<sources type="avrasm" >
boot.asm
</sources>
</target>
<subdirs>
</subdirs>
<extradist>
</extradist>
</gwbuild>

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avr/devices/minimal/boot/boot.asm Normal file
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; ***************************************************************************
; 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/tn84def.inc" ; Define device ATtiny84
.list
.include "version.asm"
.include "../defs.asm"
.include "common/calls.asm"
.include "common/utils_io.asm"
.include "devices/all/defs.asm"
#define COM_ACCEPT_ALL_DEST
; ***************************************************************************
; defines
; ---------------------------------------------------------------------------
; generic
.include "common/utils_wait.asm"
.include "modules/com2/defs.asm"
.include "modules/comproto/defs.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 start ; Reset vector
rjmp main ; Reset vector
reti ; EXT_INT0
reti ; PCI0
reti ; PCI1
reti ; WATCHDOG
reti ; ICP1
reti ; OC1A
reti ; OC1B
reti ; OVF1
reti ; OC0A
reti ; OC0B
reti ; OVF0
reti ; ACI
reti ; ADCC
reti ; ERDY
reti ; USI_STR
reti ; USI_OVF
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

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avr/devices/minimal/defs.asm Normal file
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; ***************************************************************************
; 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. *
; ***************************************************************************
; ***************************************************************************
;
; AtTiny84
; --------
; VCC 1 14 GND
; PB0 2 13 PA0
; PB1 3 12 PA1 COM-DATA
; /RESET PB3 4 11 PA2
; PB2 5 10 PA3 LED
; COM_CLK PA7 6 9 PA4 TWI-SCL
; TWI-SDA PA6 7 8 PA5
; --------
;
; ***************************************************************************
.equ BOOTLOADER_ADDR = 0xd00
.equ FIRMWARE_VARIANT_BOOT = 0
.equ FIRMWARE_VARIANT_DEFAULT = 1
.equ DEVICEINFO_ID = 'X'
.equ DEVICEINFO_VERSION = 0
.equ DEVICEINFO_REVISION = 0
; ---------------------------------------------------------------------------
; LED module
.equ LED_SIMPLE_ONTIME = 1 ; shorter
.equ LED_SIMPLE_OFFTIME = 99 ; longer
.equ LED_SIMPLE_DDR = DDRA
.equ LED_SIMPLE_PORT = PORTA
.equ LED_SIMPLE_PORTIN = PINA
.equ LED_SIMPLE_PINNUM = PORTA3
; ---------------------------------------------------------------------------
; COM module
.equ COM_BIT_LENGTH = 52000 ; 104000ns=9600, 52000ns=19200, 26000ns=38400
.equ COM_HALFBIT_LENGTH = 26000 ; see https://de.wikipedia.org/wiki/Universal_Asynchronous_Receiver_Transmitter
.equ COM_DATA_DDR = DDRA
.equ COM_DATA_INPUT = PINA
.equ COM_DATA_OUTPUT = PORTA
.equ COM_DATA_PIN = PORTA1
.equ COM_CLK_DDR = DDRA
.equ COM_CLK_INPUT = PINA
.equ COM_CLK_OUTPUT = PORTA
.equ COM_CLK_PIN = PORTA7
.equ COM_IRQ_ADDR_CLK = PCMSK0
.equ COM_IRQ_BIT_CLK = PCINT7 ; bit 7 in PCMSK0
.equ COM_IRQ_GIFR_CLK = PCIF0
.equ COM_IRQ_GIMSK_CLK = PCIE0

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avr/devices/minimal/main/0BUILD Normal file
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<?xml?>
<gwbuild>
<target type="AvrHexFile" name="minimal_firmware" >
<includes type="avrasm" >
-I $(builddir)
-I $(srcdir)
-I $(topsrcdir)/avr
-I $(topbuilddir)/avr
</includes>
<sources type="avrasm" >
main.asm
</sources>
</target>
<subdirs>
</subdirs>
<extradist>
</extradist>
</gwbuild>

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avr/devices/minimal/main/main.asm Normal file
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; ***************************************************************************
; 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 temperature sensor node on AtTiny 84
;
; This is for the full system (i.e. not the boot loader).
;
; All definitions and changes should go into this file.
;
;
; ***************************************************************************
.equ clock=1000000 ; Define the clock frequency
;.equ clock=8000000 ; Define the clock frequency
.nolist
.include "include/tn84def.inc" ; Define device ATtiny84
.list
.include "../defs.asm"
.include "version.asm"
.include "devices/all/defs.asm"
.include "common/calls.asm"
.include "common/utils_io.asm"
.include "common/utils_wait.asm"
; ***************************************************************************
; defines
; ---------------------------------------------------------------------------
; generic
.equ NET_BUFFERS_NUM = 6
.equ NET_MSGNUMINBUF_SIZE = 8 ; max buffer nums in ringbuffer (global incoming)
.equ NET_IFACE_OUTMSGBUF_SIZE = 8 ; max buffer nums in ringbuffer (per interface outbound)
; ---------------------------------------------------------------------------
; firmware settings including list of modules used
#define MODULES_CLOCK
#define MODULES_LED_SIMPLE
#define MODULES_NETWORK
#define MODULES_COM2W
#define APPS_NETWORK
#define APPS_STATS
; ***************************************************************************
; code segment
.cseg
.org 000000
; ---------------------------------------------------------------------------
; Reset and interrupt vectors
rjmp BOOTLOADER_ADDR ; Reset vector ; use this for flashed system
reti ; EXT_INT0
#ifdef MODULES_COM2W.
rjmp com2wPcintIsr ; PCI0
#else
reti ; PCI0
#endif
reti ; PCI1
reti ; WATCHDOG
reti ; ICP1
reti ; OC1A
reti ; OC1B
reti ; OVF1
rjmp baseTimerIrqOC0A ; OC0A
reti ; OC0B
reti ; OVF0
reti ; ACI
reti ; ADCC
reti ; ERDY
reti ; USI_STR
reti ; USI_OVF
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_DEFAULT, FIRMWARE_VERSION_MAJOR
.db FIRMWARE_VERSION_MINOR, FIRMWARE_VERSION_PATCHLEVEL
; ---------------------------------------------------------------------------
; @routine firmwareStart @global
firmwareStart:
rjmp main
; @end
; ---------------------------------------------------------------------------
; @routine onSystemStart
onSystemStart:
ret
; @end
; ---------------------------------------------------------------------------
; @routine onMessageReceived
;
; Called on every message received
onMessageReceived:
clc
ret
; @end
; ---------------------------------------------------------------------------
; @routine onEvery100ms
;
; Called every 100ms. Add your routine calls here. No arguments, no results.
onEvery100ms:
onEverySecond:
onEveryMinute:
onEveryHour:
onEveryDay:
ret
; @end
; ---------------------------------------------------------------------------
; @routine onEveryLoop
;
; Called on every loop (i.e. after awakening from sleep).
;
onEveryLoop:
ret
; @end
; ***************************************************************************
; includes
.include "devices/all/hw_tn84.asm"
.include "devices/all/includes.asm"
; ---------------------------------------------------------------------------
; defines for network interface
#ifdef MODULES_COM2W
.equ netInterfaceData = com2w_iface
#endif
deviceCodeEnd:
.if deviceCodeEnd >= BOOTLOADER_ADDR
.warning "Code reaches into boot loader!"
.endif