Hi,
I'm having trouble getting the HAT working.
trying:
sudo avrdude-autoreset -p m328p -b 115200 -carduino -P/dev/ttyAMA0
results in:
avrdude-original: Using autoreset DTR on GPIO Pin 7 avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xbf avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xbf avrdude done. Thank you.
I tried all Baudrates (115200, 57600, 19200)
Next I double checked the solder connections. I'm quite clumsy at soldering but I'm sure there is no cold connections now.
Next I tried to flash the bootloader (bloader.hex)
1st Attempt:
pi@fabscanpi:~/RPi-UNO-HAT/software $ sudo avrdude -c pi_isp -p m328p -e -U flash:w:bloader.hex:i -U lfuse:w:0xFF:m -U hfuse:w:0xD6:m -U efuse:w:0x05:m -U lock:w:0x0F:m Can't export GPIO 25, already exported/busy?: Device or resource busy avrdude done. Thank you.
2nd Attempt:
pi@fabscanpi:~ $ cd RPi-UNO-HAT/software/ pi@fabscanpi:~/RPi-UNO-HAT/software $ sudo avrdude -c pi_isp -p m328p -e -U flash:w:bloader.hex:i -U lfuse:w:0xFF:m -U hfuse:w:0xD6:m -U efuse:w:0x05:m -U lock:w:0x0F:m avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.00s avrdude: Device signature = 0x1e950f (probably m328p) avrdude: erasing chip avrdude: reading input file "bloader.hex" avrdude: writing flash (32748 bytes):
This Forum is killing me:
avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
0xfd != 0x05
avrdude: verification error; content mismatch
avrdude: safemode: efuse changed! Was 5, and is now fd
Would you like this fuse to be changed back? [y/n] y
^C
pi@fabscanpi:~/RPi-UNO-HAT/software $
3rd Attempt:
pi@fabscanpi:~ $ cd RPi-UNO-HAT/software/
pi@fabscanpi:~/RPi-UNO-HAT/software $ sudo avrdude -c pi_isp -p m328p -e -U flash:w:bloader.hex:i -U lfuse:w:0xFF:m -U hfuse:w:0xD6:m -U efuse:w:0x05:m -U lock:w:0x0F:m
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x000102
avrdude: Expected signature for ATmega328P is 1E 95 0F
Double check chip, or use -F to override this check.
avrdude done. Thank you.
Honestly I'm little bit frustrated by now. Could you please give me some advice ? I'm attaching some pictures how the Hat looks with booloader cables & resistors.
https://ibb.co/MBHmjB0
https://ibb.co/m6LNSn8
https://ibb.co/Rv8Wszb
https://ibb.co/0GgLhLd
https://ibb.co/f1M5cLy
https://ibb.co/W3vRyYK
My 2.2k Ohm resisitors measured 2.16k Ohm, so i used 4.65k Ohm, I wasn't sure whether everything between 2.2k and 5.6k is fine.
Okay, I replaced those 4.65kΩ Resistors with the 2.163 kΩ, tried to flash the bootloader again, same result. I guess I'm giving up for now, I think I tried everything I could find on this forum.
Some other questions.
I'm also using a Pi Model 4b, and the AC Jack has no space between the HAT and the PI. I noticed there is another port on the upper side, so I used that for the 12V 2A power supply. Could that be a problem ?
Is it sufficient to solder only one side of the reset switch for the flash cabling ? I think I read that somewhere.
Is it possible to run Octoprint with a USB Camera on the same PI ?
Well, I'd be very delighted to get some support, otherwise, moin moin und danke für die Arbeit schonmal.
LG,
Tobi
Hmm...
Option B:
Connect 12V DC to the HAT (round connector) and 5V DC to the raspberry (micro USB connector).
NOTE: Make sure you switch on the both power sources at the same time to avoid software trouble.
Hi,
i just wanted to report back. I ended up buying a second fabscan Hat and I couldn't get it to work either. So I called watterott, mailed my pictures and described my attempts and they agreed to attempt to fix the hats for me.
I sent both Hat's to them and they flashed the bootloader and reworked the soldering, both of them are working now.
Superb Support, very Happy now.
If anyone needs a working Hat, I've got a spare one now, PM me.
Hi Tobi42,
do you still have this working HAT? I would be interested. I know it's a long time since you wrote this post...
