Hello, I have home made 3D printer, Ramps board with latest 2.0.4.4 Marlin release and Bigtreetech TMC2209 drivers on X and Y axis. I am able to move axis, but UART connection don't work. "TMC connection error" is shown on LCD all the time. I checked all connections multiple times, ask for support on FB page, seeking for solution on internet but infortunately, after one month, I still didn't manage to solve it. So I am asking you for some help. Regards, Luka https://reprap.org/forum/read.php?13,868740,868740#msg-868740 Sun, 10 May 2026 08:25:22 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?13,868740,869952#msg-869952 https://reprap.org/forum/read.php?13,868740,869952#msg-869952
Regards,
Luka]]> Lupek Controllers Thu, 02 Apr 2020 15:53:17 -0400 https://reprap.org/forum/read.php?13,868740,869630#msg-869630 https://reprap.org/forum/read.php?13,868740,869630#msg-869630 Adroid Controllers Mon, 30 Mar 2020 00:42:40 -0400 https://reprap.org/forum/read.php?13,868740,869366#msg-869366 https://reprap.org/forum/read.php?13,868740,869366#msg-869366 Lupek Controllers Tue, 24 Mar 2020 16:06:15 -0400 https://reprap.org/forum/read.php?13,868740,868899#msg-868899 https://reprap.org/forum/read.php?13,868740,868899#msg-868899 Lupek Controllers Sat, 14 Mar 2020 15:37:55 -0400 https://reprap.org/forum/read.php?13,868740,868889#msg-868889 https://reprap.org/forum/read.php?13,868740,868889#msg-868889 Dust Controllers Sat, 14 Mar 2020 12:04:38 -0400 https://reprap.org/forum/read.php?13,868740,868886#msg-868886 https://reprap.org/forum/read.php?13,868740,868886#msg-868886
Regards,
Luka]]> Lupek Controllers Sat, 14 Mar 2020 11:25:40 -0400 https://reprap.org/forum/read.php?13,868740,868841#msg-868841 https://reprap.org/forum/read.php?13,868740,868841#msg-868841 Lupek Controllers Thu, 12 Mar 2020 16:51:17 -0400 https://reprap.org/forum/read.php?13,868740,868806#msg-868806 https://reprap.org/forum/read.php?13,868740,868806#msg-868806
Also, ensure that there are no jumpers installed under the drivers. For TMC2209 the jumpers that set micro steps for other drivers instead are used to set an address for the 2209. If the jumper setting does not match the setting of X_SLAVE_ADDRESS, Y_SLAVE_ADDRESS,etc in Configuration_adv.h then the driver won't respond to the UART data. The default for the addresses is 0 which means no jumpers.]]> MMcLure Controllers Wed, 11 Mar 2020 18:04:58 -0400 https://reprap.org/forum/read.php?13,868740,868797#msg-868797 https://reprap.org/forum/read.php?13,868740,868797#msg-868797
Regards,
Luka]]> Lupek Controllers Wed, 11 Mar 2020 13:44:45 -0400 https://reprap.org/forum/read.php?13,868740,868748#msg-868748 https://reprap.org/forum/read.php?13,868740,868748#msg-868748
For anyone looking see the following for many more details
[github.com]


Please take a picture on how you have it all wired up on the ramps. high enough res that we can see where you have plugged in the wires.]]> Dust Controllers Wed, 11 Mar 2020 00:13:12 -0400 https://reprap.org/forum/read.php?13,868740,868740#msg-868740 https://reprap.org/forum/read.php?13,868740,868740#msg-868740 I have home made 3D printer, Ramps board with latest 2.0.4.4 Marlin release and Bigtreetech TMC2209 drivers on X and Y axis. I am able to move axis, but UART connection don't work. "TMC connection error" is shown on LCD all the time.

I checked all connections multiple times, ask for support on FB page, seeking for solution on internet but infortunately, after one month, I still didn't manage to solve it. So I am asking you for some help.

Regards,
Luka]]> Lupek Controllers Tue, 10 Mar 2020 17:36:47 -0400