I selected the port ending in 022 and tried to burn the bootloader again (using the STK500 programmer selection with the Pololu AVR Programmer v2.1). Different error, but still not working (red light on the AVR Programmer is on, too):
Arduino: 1.8.10 (Mac OS X), Board: "Pololu A-Star 328PB, 5V, 16MHz"
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -C+/Users/rwaddell/Library/Arduino15/packages/pololu-a-star/hardware/avr/4.0.2/extra_avrdude.conf -v -patmega328pb -cstk500 -P/dev/cu.usbmodem002795022 -B 5 -e -Ulock:w:0xFF:m -Uefuse:w:0xF4:m -Uhfuse:w:0xDE:m -Ulfuse:w:0xFF: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 "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/rwaddell/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Additional configuration file is "/Users/rwaddell/Library/Arduino15/packages/pololu-a-star/hardware/avr/4.0.2/extra_avrdude.conf"
avrdude: warning at /Users/rwaddell/Library/Arduino15/packages/pololu-a-star/hardware/avr/4.0.2/extra_avrdude.conf:1: part m328pb overwrites previous definition /Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf:8597.
Using Port : /dev/cu.usbmodem002795022
Using Programmer : stk500
Setting bit clk period : 5.0
AVR Part : ATmega328PB
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 : STK500V2
Description : Atmel STK500
Programmer Model: STK500
Hardware Version: 15
Firmware Version Master : 2.10
Topcard : Unknown
Vtarget : 4.9 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.
Error while burning bootloader.
It looks like you are using the correct AVRDUDE command now, but the programmer cannot connect to the ATmega328PB. After a failed programming attempt, please open the Pololu USB AVR Programmer v2 Configuration Utility and take a screenshot of it so we can see a more specific error message. Also, please post some pictures of your setup here so I can check your connections.
At this stage, there is no reason to use the “Upload” button because that button only works if the board has a bootloader. We should focus on fixing all of the issues that are preventing you from burning the bootloader.
On November 1, you said “I connected the Pololu AVR Programmer v2.1 to the 328PB via the ISP” but in your picture from yesterday, I see that they are only connected via their serial interfaces. You should use the 6-pin ISP cable that comes with the programmer to connect the programmer to the A-Star’s ISP header. Be careful to use the right orientation.
Please refer to the “Connecting an AVR for programming” section of the Pololu USB AVR Programmer v2 User’s Guide. Please refer to the “A-Star 328PB Micro pinout and components” section of the Pololu A-Star 328PB User’s Guide for information about where the ISP header is and how it is oriented.
You should not change the ISP frequency settings at this time.
Thanks for all your patience, David. After connecting the 328PB to the AVR Programmer via the 2x3 ISP header I was able to burn the bootloader (using the programming port), and then program it with ‘Blink’ using the serial interface and the TTL port.
So I’m clear:
You can only burn the bootloader via the 2x3 ISP header and the programming port in the Arduino IDE.
If you upload a sketch to the 328PB via the 2x3 ISP header it blows away the bootloader, so you cannot subsequently upload sketches via the serial header and the TTL port until you re-burn the bootloader as above.
I build myself a A-Star like board but without serial header, cause I thaught i can upload sketches with AVR Programmer 2.1.
Bootloader programming works, but it seems when I choose to upload the sketch via programmer “sketch → upload wth programmer”, it doesn’t take the additional configuration file “extra_avrdude.conf” into account, as it does while burning the bootloader.
Because AVRDude is complaining about wrong signature:
avrdude: Device signature = 0x1e9516 (probably m328pb)
avrdude: Expected signature for ATmega328P is 1E 95 0F
Double check chip, or use -F to override this check.
I inspected the “platform.txt” in the pololu a-star folder already and can’t find the clue.
What needs to be changed that the Arduino IDE takes the extra config as well, when uploading via programmer.
If you have not done so already, you should open the Programmer menu and select “STK500 for Pololu A-Star 328PB”. The platform.txt file you found defines a tool called avrdudecustom, but that tool is not used unless you select a programmer entry that is configured to use it.
You should also select the correct board in the “Board” menu and the correct board version in the “Version” menu.
