168 lines
3.7 KiB
NASM
168 lines
3.7 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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.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 "devices/all/defs.asm"
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.include "common/calls.asm"
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.include "common/utils_io.asm"
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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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; defines
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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/flash/proto.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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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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#if 0
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debugStop:
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cli
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sbi LED_SIMPLE_DDR, LED_SIMPLE_PINNUM ; out
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cbi LED_SIMPLE_PORT, LED_SIMPLE_PINNUM ; on
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cbi COM_ATTN_DDR, COM_ATTN_PIN ; set ATTN port as input
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cbi COM_ATTN_OUTPUT, COM_ATTN_PIN ; disable internal pullup for ATTN
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ldi r18, 0
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test_loop1:
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ldi r16, 100
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test_loop2:
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ldi r17, 100
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test_loop3:
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Utils_WaitNanoSecs 10000, 0, r22
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dec r17
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brne test_loop3
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dec r16
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brne test_loop2
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sbi LED_SIMPLE_PORTIN, LED_SIMPLE_PINNUM ; toggle
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inc r18
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mov r19, r18
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andi r19, 1
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brne test1
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sbi COM_ATTN_DDR, COM_ATTN_PIN
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cbi COM_ATTN_OUTPUT, COM_ATTN_PIN
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rjmp test_loop1
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test1:
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cbi COM_ATTN_DDR, COM_ATTN_PIN
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cbi COM_ATTN_OUTPUT, COM_ATTN_PIN
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rjmp test_loop1
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#endif
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