I modified the file in the path that I find written in the log like this:
#------------------------------------------------------------
# ATmega2560
#------------------------------------------------------------
part
id = "m2560";
desc = "ATmega2560";
signature = 0x1e 0x98 0x01;
has_jtag = yes;
# stk500_devcode = 0xB2;
# avr910_devcode = 0x43;
chip_erase_delay = 9000;
pagel = 0xD7;
bs2 = 0xA0;
reset = dedicated;
pgm_enable = "1 0 1 0 1 1 0 0 0 1 0 1 0 0 1 1",
"x x x x x x x x x x x x x x x x";
chip_erase = "1 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0",
"x x x x x x x x x x x x x x x x";
timeout = 200;
stabdelay = 100;
cmdexedelay = 25;
synchloops = 32;
bytedelay = 0;
pollindex = 3;
pollvalue = 0x53;
predelay = 1;
postdelay = 1;
pollmethod = 1;
pp_controlstack =
0x0E, 0x1E, 0x0F, 0x1F, 0x2E, 0x3E, 0x2F, 0x3F,
0x4E, 0x5E, 0x4F, 0x5F, 0x6E, 0x7E, 0x6F, 0x7F,
0x66, 0x76, 0x67, 0x77, 0x6A, 0x7A, 0x6B, 0x7B,
0xBE, 0xFD, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02;
hventerstabdelay = 100;
progmodedelay = 0;
latchcycles = 5;
togglevtg = 1;
poweroffdelay = 15;
resetdelayms = 1;
resetdelayus = 0;
hvleavestabdelay = 15;
chiperasepulsewidth = 0;
chiperasepolltimeout = 10;
programfusepulsewidth = 0;
programfusepolltimeout = 5;
programlockpulsewidth = 0;
programlockpolltimeout = 5;
idr = 0x31;
spmcr = 0x57;
rampz = 0x3b;
allowfullpagebitstream = no;
ocdrev = 4;
memory "eeprom"
paged = no; /* leave this "no" */
page_size = 8; /* for parallel programming */
size = 4096;
min_write_delay = 9000;
max_write_delay = 9000;
readback_p1 = 0x00;
readback_p2 = 0x00;
read = " 1 0 1 0 0 0 0 0",
" x x x x a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" o o o o o o o o";
write = " 1 1 0 0 0 0 0 0",
" x x x x a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" i i i i i i i i";
loadpage_lo = " 1 1 0 0 0 0 0 1",
" 0 0 0 0 0 0 0 0",
" 0 0 0 0 0 a2 a1 a0",
" i i i i i i i i";
writepage = " 1 1 0 0 0 0 1 0",
" 0 0 x x a11 a10 a9 a8",
" a7 a6 a5 a4 a3 0 0 0",
" x x x x x x x x";
mode = 0x41;
delay = 10;
blocksize = 8;
readsize = 256;
;
memory "flash"
paged = yes;
size = 262144;
page_size = 256;
num_pages = 1024;
min_write_delay = 4500;
max_write_delay = 4500;
readback_p1 = 0x00;
readback_p2 = 0x00;
read_lo = " 0 0 1 0 0 0 0 0",
"a15 a14 a13 a12 a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" o o o o o o o o";
read_hi = " 0 0 1 0 1 0 0 0",
"a15 a14 a13 a12 a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" o o o o o o o o";
loadpage_lo = " 0 1 0 0 0 0 0 0",
" x x x x x x x x",
" x a6 a5 a4 a3 a2 a1 a0",
" i i i i i i i i";
loadpage_hi = " 0 1 0 0 1 0 0 0",
" x x x x x x x x",
" x a6 a5 a4 a3 a2 a1 a0",
" i i i i i i i i";
writepage = " 0 1 0 0 1 1 0 0",
"a15 a14 a13 a12 a11 a10 a9 a8",
" a7 x x x x x x x",
" x x x x x x x x";
load_ext_addr = " 0 1 0 0 1 1 0 1",
" 0 0 0 0 0 0 0 0",
" 0 0 0 0 0 0 0 a16",
" 0 0 0 0 0 0 0 0";
mode = 0x41;
delay = 10;
blocksize = 256;
readsize = 256;
;
memory "lfuse"
size = 1;
write = "1 0 1 0 1 1 0 0 1 0 1 0 0 0 0 0",
"x x x x x x x x i i i i i i i i";
read = "0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0",
"x x x x x x x x o o o o o o o o";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "hfuse"
size = 1;
write = "1 0 1 0 1 1 0 0 1 0 1 0 1 0 0 0",
"x x x x x x x x i i i i i i i i";
read = "0 1 0 1 1 0 0 0 0 0 0 0 1 0 0 0",
"x x x x x x x x o o o o o o o o";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "efuse"
size = 1;
write = "1 0 1 0 1 1 0 0 1 0 1 0 0 1 0 0",
"x x x x x x x x x x x x x i i i";
read = "0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 0",
"x x x x x x x x o o o o o o o o";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "lock"
size = 1;
read = "0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0",
"x x x x x x x x x x o o o o o o";
write = "1 0 1 0 1 1 0 0 1 1 1 x x x x x",
"x x x x x x x x 1 1 i i i i i i";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "calibration"
size = 1;
read = "0 0 1 1 1 0 0 0 x x x x x x x x",
"0 0 0 0 0 0 0 0 o o o o o o o o";
;
memory "signature"
size = 3;
read = "0 0 1 1 0 0 0 0 x x x x x x x x",
"x x x x x x a1 a0 o o o o o o o o";
;
;
#------------------------------------------------------------
# ATmega2560v
#------------------------------------------------------------
part
id = "m2560v";
desc = "ATmega2560V";
signature = 0x1e 0x98 0x03;
has_jtag = yes;
# stk500_devcode = 0xB2;
# avr910_devcode = 0x43;
chip_erase_delay = 9000;
pagel = 0xD7;
bs2 = 0xA0;
reset = dedicated;
pgm_enable = "1 0 1 0 1 1 0 0 0 1 0 1 0 0 1 1",
"x x x x x x x x x x x x x x x x";
chip_erase = "1 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0",
"x x x x x x x x x x x x x x x x";
timeout = 200;
stabdelay = 100;
cmdexedelay = 25;
synchloops = 32;
bytedelay = 0;
pollindex = 3;
pollvalue = 0x53;
predelay = 1;
postdelay = 1;
pollmethod = 1;
pp_controlstack =
0x0E, 0x1E, 0x0F, 0x1F, 0x2E, 0x3E, 0x2F, 0x3F,
0x4E, 0x5E, 0x4F, 0x5F, 0x6E, 0x7E, 0x6F, 0x7F,
0x66, 0x76, 0x67, 0x77, 0x6A, 0x7A, 0x6B, 0x7B,
0xBE, 0xFD, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02;
hventerstabdelay = 100;
progmodedelay = 0;
latchcycles = 5;
togglevtg = 1;
poweroffdelay = 15;
resetdelayms = 1;
resetdelayus = 0;
hvleavestabdelay = 15;
chiperasepulsewidth = 0;
chiperasepolltimeout = 10;
programfusepulsewidth = 0;
programfusepolltimeout = 5;
programlockpulsewidth = 0;
programlockpolltimeout = 5;
idr = 0x31;
spmcr = 0x57;
rampz = 0x3b;
allowfullpagebitstream = no;
ocdrev = 4;
memory "eeprom"
paged = no; /* leave this "no" */
page_size = 8; /* for parallel programming */
size = 4096;
min_write_delay = 9000;
max_write_delay = 9000;
readback_p1 = 0x00;
readback_p2 = 0x00;
read = " 1 0 1 0 0 0 0 0",
" x x x x a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" o o o o o o o o";
write = " 1 1 0 0 0 0 0 0",
" x x x x a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" i i i i i i i i";
loadpage_lo = " 1 1 0 0 0 0 0 1",
" 0 0 0 0 0 0 0 0",
" 0 0 0 0 0 a2 a1 a0",
" i i i i i i i i";
writepage = " 1 1 0 0 0 0 1 0",
" 0 0 x x a11 a10 a9 a8",
" a7 a6 a5 a4 a3 0 0 0",
" x x x x x x x x";
mode = 0x41;
delay = 10;
blocksize = 8;
readsize = 256;
;
memory "flash"
paged = yes;
size = 262144;
page_size = 256;
num_pages = 1024;
min_write_delay = 4500;
max_write_delay = 4500;
readback_p1 = 0x00;
readback_p2 = 0x00;
read_lo = " 0 0 1 0 0 0 0 0",
"a15 a14 a13 a12 a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" o o o o o o o o";
read_hi = " 0 0 1 0 1 0 0 0",
"a15 a14 a13 a12 a11 a10 a9 a8",
" a7 a6 a5 a4 a3 a2 a1 a0",
" o o o o o o o o";
loadpage_lo = " 0 1 0 0 0 0 0 0",
" x x x x x x x x",
" x a6 a5 a4 a3 a2 a1 a0",
" i i i i i i i i";
loadpage_hi = " 0 1 0 0 1 0 0 0",
" x x x x x x x x",
" x a6 a5 a4 a3 a2 a1 a0",
" i i i i i i i i";
writepage = " 0 1 0 0 1 1 0 0",
"a15 a14 a13 a12 a11 a10 a9 a8",
" a7 x x x x x x x",
" x x x x x x x x";
load_ext_addr = " 0 1 0 0 1 1 0 1",
" 0 0 0 0 0 0 0 0",
" 0 0 0 0 0 0 0 a16",
" 0 0 0 0 0 0 0 0";
mode = 0x41;
delay = 10;
blocksize = 256;
readsize = 256;
;
memory "lfuse"
size = 1;
write = "1 0 1 0 1 1 0 0 1 0 1 0 0 0 0 0",
"x x x x x x x x i i i i i i i i";
read = "0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0",
"x x x x x x x x o o o o o o o o";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "hfuse"
size = 1;
write = "1 0 1 0 1 1 0 0 1 0 1 0 1 0 0 0",
"x x x x x x x x i i i i i i i i";
read = "0 1 0 1 1 0 0 0 0 0 0 0 1 0 0 0",
"x x x x x x x x o o o o o o o o";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "efuse"
size = 1;
write = "1 0 1 0 1 1 0 0 1 0 1 0 0 1 0 0",
"x x x x x x x x x x x x x i i i";
read = "0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 0",
"x x x x x x x x o o o o o o o o";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "lock"
size = 1;
read = "0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0",
"x x x x x x x x x x o o o o o o";
write = "1 0 1 0 1 1 0 0 1 1 1 x x x x x",
"x x x x x x x x 1 1 i i i i i i";
min_write_delay = 9000;
max_write_delay = 9000;
;
memory "calibration"
size = 1;
read = "0 0 1 1 1 0 0 0 x x x x x x x x",
"0 0 0 0 0 0 0 0 o o o o o o o o";
;
memory "signature"
size = 3;
read = "0 0 1 1 0 0 0 0 x x x x x x x x",
"x x x x x x a1 a0 o o o o o o o o";
;
;
But I have the same output:
C:\Users\Utente\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino18/bin/avrdude -CC:\Users\Utente\AppData\Local\Arduino15\packages\MegaCore\hardware\avr\2.2.0/avrdude.conf -v -patmega2560 -cstk500 -P COM13 -e -Ulock:w:0xff:m -Uefuse:w:0xfe:m -Uhfuse:w:0b11010110:m -Ulfuse:w:0xe2:m
avrdude: Version 6.3-20201216
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\Users\Utente\AppData\Local\Arduino15\packages\MegaCore\hardware\avr\2.2.0/avrdude.conf"
Using Port : COM13
Using Programmer : stk500
AVR Part : ATmega2560
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PA0
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 10 8 0 no 4096 8 0 9000 9000 0x00 0x00
flash 65 10 256 0 yes 262144 256 1024 4500 4500 0x00 0x00
lfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
efuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
lock 0 0 0 0 no 1 0 0 9000 9000 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 : STK500V2
Description : Atmel STK500
Programmer Model: STK500
Hardware Version: 15
Firmware Version Master : 2.10
Topcard : Unknown
Vtarget : 3.4 V
SCK period : 8.7 us
Varef : 0.0 V
Oscillator : Off
avrdude: stk500v2_command(): command failed
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
Errore durante la scrittura del bootloader