hi, i'm new to this forum. i tried to make a standalone arduino mega2560 using atmega2560 on my custom board. i got problem when i want to burn bootloader. the error message is like this pictures. what should i do?
Was it easier to capture an image than to cut and paste text?
This is what my ISP tool said when I tried to upload optiboot into the air.
avr-gcc (GCC) 5.4.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
115200 RATE CHECK: Desired: 115200, Real: 117647, UBRRL = 16, Error=2.1%
rm -f baudcheck.tmp.sh
avr-gcc -g -Wall -Os -fno-split-wide-types -mrelax -fno-caller-saves -DF_CPU=16000000L -DBAUD=115200 -DLED_START_FLASHES=0 -DLED=B5 -mmcu=atmega328p -c -o main.o main.c
main.c:97:6: warning: #warning BAUD error greater than 2% [-Wcpp]
#warning BAUD error greater than 2%
^
avr-gcc -Wl,--section-start=.text=0x7e00 -Wl,--section-start=.version=0x7ffe -Wl,--relax -nostartfiles -nostdlib -mmcu=atmega328p -o optiboot_rpuno_atmega328p_-b115200_F_CPU16000000L.elf main.o -lc
avr-size -C --mcu=atmega328p optiboot_rpuno_atmega328p_-b115200_F_CPU16000000L.elf
AVR Memory Usage
----------------
Device: atmega328p
Program: 434 bytes (1.3% Full)
(.text + .data + .bootloader)
Data: 0 bytes (0.0% Full)
(.data + .bss + .noinit)
avr-objcopy -j .text -j .data -j .version --set-section-flags .version=alloc,load -O ihex optiboot_rpuno_atmega328p_-b115200_F_CPU16000000L.elf optiboot_rpuno_atmega328p_-b115200_F_CPU16000000L.hex
avrdude -v -p atmega328p -c stk500v1 -P /dev/ttyACM0 -b 19200 -e -U flash:w:optiboot_rpuno_atmega328p_-b115200_F_CPU16000000L.hex -U lock:w:0xEF:m
avrdude: Version 6.3
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/home/rsutherland/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyACM0
Using Programmer : stk500v1
Overriding Baud Rate : 19200
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 : STK500
Description : Atmel STK500 Version 1.x firmware
Hardware Version: 2
Firmware Version: 1.18
Topcard : Unknown
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.1 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (probably .reduced_core_tiny) (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (probably .reduced_core_tiny) (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (probably .reduced_core_tiny)
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
One of my ISP pins (that reads the data from the target) is HIGH, so the signature reads as all 1's (thus the 0xffffff). I am guessing you have a short since yours is reading 0's.
Are you using a crystal? If so, is the crystal connected properly? If not, did you burn bootloader with a board def that told it to use a crystal? If so, you've softbricked it (and the output for the first attempt at programming would have shown it successfully setting fuses, then erroring out when writing flash). If you've done that you need to connect a crystal or clock source, and then set the fuses correctly. I recommend using megacore if you're using a non-standard clock source on a mega-like chip.
Other than that, recheck all wiring, make sure the ISP pins are actually the ones you think they are.
hey guys. i've found the solution. you just need to press reset button right before the uploading state happened.