right
Where is pin 21 of your 328PB
There are some fake chips going around.
Is the part number atmega328pb-u or atmega328pb-pu ?
As I can see on chip it is atmega328pb-u
Unfortunately it a fake.
There have been other people on the forum with the same problem.
From the 328PB data sheet:
ATmega328PB-AU
ATmega328PB-AUR(3)
ATmega328PB-MU
ATmega328PB-MUR(3)
ATmega328PB-AN
ATmega328PB-ANR(3)
ATmega328PB-MN
ATmega328PB-MNR(3)
So nothing I can do to program it?
Pin 21 should be conneced to ground but I don't see it on your schematic.
By pin 21 are u refering to pb7? I see that pin has D21 on it in atmega328pb datasheet. If yes that pin is one of the oscillator pins (xtal2) and is connected to the ground via capacitor c8.
D10 of programmer is connected to rst pin of custom pcb board that is being programmed.
When you get time could you send me your sketch please?
I'm sorry, it was difficult to find the right link, because the AVRFreaks forum changed the engine and all the old links stopped working.
However, here is the link where I got the code from:
https://www.avrfreaks.net/s/topic/a5C3l000000UUroEAG/t132446?comment=P-994658
Copy the code from the message, save as arduino sketch and then use with accordance of ArduinoasISP manual.
Just add a wire from pin #3 to XTAL1 on your target AVR.
I have uploaded the code to my NANO I want to use as programmer and connected d3 of NANO to xtal1 of my custom pcb. Still getting an error.
Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Atmel atmega328pb Xplained mini"
C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avrdude -CC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -cstk500v1 -PCOM9 -b19200 -e -Ulock:w:0x3F:m -Uefuse:w:0xFC:m -Uhfuse:w:0xDE:m -Ulfuse:w:0xE0:m
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\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM9
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: stk500_recv(): programmer is not responding
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude: stk500_recv(): programmer is not responding
avrdude done. Thank you.
Error while burning bootloader.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
Could you please check again with standard ArduinoasISP sketch?
I think you changed something in the procedure or in the connections, since there is nothing in the last two sketches that could lead to such an error
I have tried that also, again 0xffffff code. I have set board to atmega328pb xplained mini.
P.S.
I have kept same connections and settings, only thing really changed is the sketch I uploaded from the link you gave me and connected pin d3 to xtal1 of custom pcb.
When I tried with default ArduinoISP code I have disconnected d3 pin.
It is weird that you got
with the both modified sketch. It are the same codes as standard one, but only clock output added.
Sorry, I have no another ideas...
as a last try - can you try to run the modified sketch but not connect pin 3 to the board being flashed?
No luck unfortunately.
Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Atmel atmega328pb Xplained mini"
C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avrdude -CC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -cstk500v1 -PCOM9 -b19200 -e -Ulock:w:0x3F:m -Uefuse:w:0xFC:m -Uhfuse:w:0xDE:m -Ulfuse:w:0xE0:m
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\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM9
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: stk500_recv(): programmer is not responding
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude: stk500_recv(): programmer is not responding
avrdude done. Thank you.
Error while burning bootloader.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
thank you
Pin21 of the ATmega328PB is ground but you schematic symbol does not have a pin 21.
