I have a gen6.d board, and I am trying to upload a newer version of Marlin to it, but I am receiving the following error: "avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00 avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x0e avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x3a avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x48 avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x54 avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x4a avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x40 avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xc2 avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x2c avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x68 Problem uploading to board." The board is working fine for printing, the update aims to enable auto bed leveling. The Sanguino was installed by Boards Manager. I have no compilation problem, and Serial Monitor Echo is able to pickup data from the board as follow: "start echo:Free Memory:799 PlannerBufferBytes:1168 echo:Using Default settings: echo:Steps per unit: echo: M92 X40.00 Y40.00 Z2078.72 E514.00 echo:Maximum feedrates (mm/s): echo: M203 X250.00 Y250.00 Z3.00 E25.00 echo:Maximum Acceleration (mm/s2): echo: M201 X4500 Y4500 Z40 E5000 echo:Acceleration: S=acceleration, T=retract acceleration echo: M204 S1500.00 T1500.00 echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s), Z=maximum Z jerk (mm/s) echo: M205 S0.00 T0.00 B20000 X10.00 Z0.20 echo:PID settings: echo: M301 P22.20 I1.25 D99.00 echo:SD init fail workDir open failed" About my specs: MacOS Sierra 10.12.1; Gen6.d board; IDE Arduino 1.6.12 with Board: "Sanguino", Processor: ATmega644P or ATmega644PA (16 MHz), Port: "dev/cu.usbserial-A101OV2J"; Sanguino 1.0.1; USB Driver: FT232R USB UART; Tks in adv. https://reprap.org/forum/read.php?1,717575,717575#msg-717575 Mon, 13 Apr 2026 01:01:28 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,717575,728321#msg-728321 https://reprap.org/forum/read.php?1,717575,728321#msg-728321
I received communication error message when uploading a Marlin Sketch, however, it was still able to complete the transfer.
After this, I am not able to communicate with the printer, tried Pronterface, Octoprint and Arduino IDE. It sees the port "dev/cu.usbserial-A101OV2J", but is not able connect, retrieving the following message:
"
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
Problem uploading to board. See [www.arduino.cc] for suggestions.
"]]> niksoley General Mon, 05 Dec 2016 08:04:01 -0500 https://reprap.org/forum/read.php?1,717575,721801#msg-721801 https://reprap.org/forum/read.php?1,717575,721801#msg-721801
Happy you have it working.]]> Dust General Wed, 09 Nov 2016 15:36:06 -0500 https://reprap.org/forum/read.php?1,717575,721725#msg-721725 https://reprap.org/forum/read.php?1,717575,721725#msg-721725 However the solution was to change only the atmega644p.upload.speed=115200 to 38400, and let protocol=arduino.]]> niksoley General Wed, 09 Nov 2016 11:20:32 -0500 https://reprap.org/forum/read.php?1,717575,721532#msg-721532 https://reprap.org/forum/read.php?1,717575,721532#msg-721532
On Mac OS X:
/Users/(username)/Library/Arduino15

On Windows:
Arduino IDE 1.6.5r5 and previous:
C:\Users\(username)\AppData\Roaming\Arduino15
Arduino IDE 1.6.6 and later:
C:\Users\(username)\AppData\Local\Arduino15

On Linux:
/home/(username)/.arduino15 (a.k.a. ~/.arduino15)]]> Dust General Tue, 08 Nov 2016 16:09:38 -0500 https://reprap.org/forum/read.php?1,717575,721490#msg-721490 https://reprap.org/forum/read.php?1,717575,721490#msg-721490
Tried the trick of pressing reset button without success. :(

I will try edit the board.txt before burning the bootloader.
So, just looked for 644p in my board.txt file, and I was not able to find it. However, as attachment, the option is in the menu, am I doing something wrong?

Follow a copy of my board.txt [pastebin.com]
It is located at Contents/Java/hardware/arduino/avr]]> niksoley General Tue, 08 Nov 2016 13:44:59 -0500 https://reprap.org/forum/read.php?1,717575,717825#msg-717825 https://reprap.org/forum/read.php?1,717575,717825#msg-717825 fazz33 General Thu, 27 Oct 2016 23:31:15 -0400 https://reprap.org/forum/read.php?1,717575,717819#msg-717819 https://reprap.org/forum/read.php?1,717575,717819#msg-717819
could be a few things

1) your board doesn't have a boot loader installed, it is possible to upload firmware without a boot loader and some suppliers use this method, making uploading new firmware impossible without a hardware device known as a avrisp

2) your tiring to upload with the wrong upload setting, baud rate and protocol. This is not the marlin baud rate, its is the baud rate of the boot loader.
reading the setting that where popular at the time when gen 6 was also popular

atmega644p.upload.protocol=stk500
atmega644p.upload.speed=38400

the boards.txt file that comes threw board manager uses

atmega644p.name=Sanguino W/ ATmega644P or ATmega644PA (16 MHz)
atmega644p.upload.protocol=arduino
atmega644p.upload.speed=115200

so find the boards.txt that has these settings and change the baud rate and protocol to the older setting.
restart the ardunio ide and try again]]> Dust General Thu, 27 Oct 2016 20:29:48 -0400 https://reprap.org/forum/read.php?1,717575,717799#msg-717799 https://reprap.org/forum/read.php?1,717575,717799#msg-717799 niksoley General Thu, 27 Oct 2016 17:34:59 -0400 https://reprap.org/forum/read.php?1,717575,717796#msg-717796 https://reprap.org/forum/read.php?1,717575,717796#msg-717796 makerparts General Thu, 27 Oct 2016 17:13:51 -0400 https://reprap.org/forum/read.php?1,717575,717575#msg-717575 https://reprap.org/forum/read.php?1,717575,717575#msg-717575 "avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x0e
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x3a
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x48
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x54
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x4a
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x40
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x2c
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x68
Problem uploading to board."

The board is working fine for printing, the update aims to enable auto bed leveling.
The Sanguino was installed by Boards Manager.
I have no compilation problem, and Serial Monitor Echo is able to pickup data from the board as follow:
"start
echo:Free Memory:799 PlannerBufferBytes:1168
echo:Using Default settings:
echo:Steps per unit:
echo: M92 X40.00 Y40.00 Z2078.72 E514.00
echo:Maximum feedrates (mm/s):
echo: M203 X250.00 Y250.00 Z3.00 E25.00
echo:Maximum Acceleration (mm/s2):
echo: M201 X4500 Y4500 Z40 E5000
echo:Acceleration: S=acceleration, T=retract acceleration
echo: M204 S1500.00 T1500.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s), Z=maximum Z jerk (mm/s)
echo: M205 S0.00 T0.00 B20000 X10.00 Z0.20
echo:PID settings:
echo: M301 P22.20 I1.25 D99.00
echo:SD init fail
workDir open failed"


About my specs:
MacOS Sierra 10.12.1;
Gen6.d board;
IDE Arduino 1.6.12 with Board: "Sanguino", Processor: ATmega644P or ATmega644PA (16 MHz), Port: "dev/cu.usbserial-A101OV2J";
Sanguino 1.0.1;
USB Driver: FT232R USB UART;

Tks in adv.]]> niksoley General Wed, 26 Oct 2016 18:55:51 -0400