I have a board in a machine that I never wrote the source code for. I want to upload my build on there but in case anything goes wrong I want to make a backup.
All this is now tested on my development board so I don't break the current live machine.
So far my research has got me to read a hex file from the attached board.
“C:/Program Files (x86)/Arduino/hardware/tools/avr/bin/avrdude” -C “C:/Program Files (x86)/Arduino/hardware/tools/avr/etc/avrdude.conf” -D -v -p atmega328p -c arduino -P COM13 -b 115200 -U flash:r:”test2.hex”:i
This creates a hex file that is 78kb.
using this to write the hex to the board -U flash:w:”test2.hex”:i
Thows
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:/Program Files (x86)/Arduino/hardware/tools/avr/etc/avrdude.conf"
Using Port : COM13
Using Programmer : arduino
Overriding Baud Rate : 115200
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: safemode: lfuse reads as 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode: efuse reads as 0
avrdude: reading input file "test2.hex"
avrdude: writing flash (32768 bytes):
Writing | ################################################# | 98% 5.64s
avrdude: stk500_paged_write(): (a) protocol error, expect=0x14, resp=0x10
Writing | ################################################## | 99% 5.72savrdude: stk500_recv(): programmer is not responding
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_recv(): programmer is not responding
If I write the build from Arduino IDE it works correctly. Located C:\Users\USER\AppData\Local\Temp\arduino_build_379183
The build that Adruino IDE creates is only 14kb not the 78kb that is read fro the device.
Other details:
Board Ardunio UNO
I am now stuck so please help.
TLDR: I want to dump the current binary from a board as a backup in case the new build doesn't work. And I do not have the source for the current binary.