Arduino nano every used to work fine before flashing the below sketch containing software reset in loop.
Please find attached code and flashing log.
#include <avr/wdt.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/power.h>
#include <avr/sleep.h>
void resetViaSWR() {
_PROTECTED_WRITE(RSTCTRL.SWRR,1);
}
char* resetReason = NULL;
void setup() {
Serial.begin(115200);
Serial.println(resetReason);
}
void loop() {
resetViaSWR();
wdt_reset();
}
Arduino: 1.8.15 (Windows 10), Board: "Arduino Nano Every, None (ATMEGA4809)"
Sketch uses 2663 bytes (5%) of program storage space. Maximum is 49152 bytes.
Global variables use 177 bytes (2%) of dynamic memory, leaving 5967 bytes for local variables. Maximum is 6144 bytes.
Forcing reset using 1200bps open/close on port COM8
C:\Users\Mohammed Zaed\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude -CC:\Users\Mohammed Zaed\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf -v -patmega4809 -cjtag2updi -PCOM8 -b115200 -e -D -Uflash:w:C:\Users\MOHAMM~1\AppData\Local\Temp\arduino_build_916747/incubator.ino.hex:i -Ufuse2:w:0x01:m -Ufuse5:w:0xC9:m -Ufuse8:w:0x00:m {upload.extra_files}
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:\Users\Mohammed Zaed\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"
Using Port : COM8
Using Programmer : jtag2updi
Overriding Baud Rate : 115200
JTAG ICE mkII sign-on message:
Communications protocol version: 1
M_MCU:
boot-loader FW version: 1
firmware version: 1.07
hardware version: 1
S_MCU:
boot-loader FW version: 1
firmware version: 6.07
hardware version: 1
Serial number: 00:00:00:00:00:00
Device ID: JTAGICE mkII
AVR Part : ATmega4809
Chip Erase delay : 0 us
PAGEL : P00
BS2 : P00
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 0
StabDelay : 0
CmdexeDelay : 0
SyncLoops : 0
ByteDelay : 0
PollIndex : 0
PollValue : 0x00
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
prodsig 0 0 0 0 no 61 61 0 0 0 0x00 0x00
fuses 0 0 0 0 no 9 0 0 0 0 0x00 0x00
fuse0 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse1 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse2 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse4 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse5 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse6 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse7 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse8 0 0 0 0 no 1 0 0 0 0 0x00 0x00
lock 0 0 0 0 no 1 0 0 0 0 0x00 0x00
data 0 0 0 0 no 0 0 0 0 0 0x00 0x00
usersig 0 0 0 0 no 64 64 0 0 0 0x00 0x00
flash 0 0 0 0 no 49152 128 0 0 0 0x00 0x00
eeprom 0 0 0 0 no 256 64 0 0 0 0x00 0x00
Programmer Type : JTAGMKII_PDI
Description : JTAGv2 to UPDI bridge
M_MCU hardware version: 1
M_MCU firmware version: 1.07
S_MCU hardware version: 1
S_MCU firmware version: 6.07
Serial number: 00:00:00:00:00:00
Vtarget : 5.0 V
avrdude: jtagmkII_initialize(): Cannot locate "flash" and "boot" memories in description
avrdude: jtagmkII_reset(): bad response to reset command: RSP_ILLEGAL_MCU_STATE
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude: jtagmkII_close(): bad response to sign-off command: RSP_ILLEGAL_MCU_STATE
avrdude done. Thank you.
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