I have just uploaded beta test versions of an experimental STM32F4 port of RepRap Firmware V3.1.x+. The firmware files can be found here: [drive.google.com] This port is an enhanced version of the RepRap Firmware LPC176x port and much of the documentation/features etc. applies to both. Currently the following boards are supported: BTT SKR Pro V1.1BTT SKR Pro V1.2BTT GTR V1.0 (The expansion board is not currently supported) Two versions of the firmware are provided: firmware-wifi.bin supports access by an ESP8266 WiFi module.firmware-sbc.bin supports connection to a Raspberry Pi SBC. Both versions have USB and serial ports enabled. For more information on installing and configuring the firmware please see the STM32F4 sections of the Wiki: [github.com] For help with generating RRF configuration files please see the online configuration tool (which has been updated for this release): [jaysuk.github.io] For help and general discussion please use the discord server: [discord.gg] I'd like to thank jay_s and PCR for their work in supporting the LPC version (WiKi, Hardware, Config tool, Discord and lots more) and all of their support and testing of early versions of this software. I'd also like to thank SDavi and DC42 for all of their contributions to RRF. Please note the following: The WiFi version of this firmware requires updated firmware on the ESP8266 (it removes the small number of active socket limitation used with the LPC version). The updated ESP8266 firmware is provided in the link above (see the WiKi for programming details).The SBC version of this firmware removes many of the limitations present in the LPC port (which are due to memory constraints), because of this the STM32F4 version now uses the standard Duet3D SBC RPi software not the version modified for the LPC. As with the LPC version of RRF the WiFi module and SBC is connected via the EXP1 and EXP2 headers. However it should be noted that the orientation of these headers is different on the STM32F4 boards which may make using existing adaptors difficult. Watch this space for news of STM32F4 specific boards.PLEASE DO NOT LEAVE ANY HARDWARE RUNNING THIS FIRMWARE UNATTENDED. This version is very new and has only received a small amount of testing. It may be used to control heaters and other hardware that in some situations could be dangerous. Please monitor operation carefully and use this firmware at your own risk. https://reprap.org/forum/read.php?147,876357,876357#msg-876357 Mon, 11 May 2026 10:58:44 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?147,876357,891275#msg-891275 https://reprap.org/forum/read.php?147,876357,891275#msg-891275 jay_s Firmware - experimental, borrowed, and future Wed, 07 Dec 2022 05:59:08 -0500 https://reprap.org/forum/read.php?147,876357,891274#msg-891274 https://reprap.org/forum/read.php?147,876357,891274#msg-891274 JacquesBlom Firmware - experimental, borrowed, and future Wed, 07 Dec 2022 05:44:43 -0500 https://reprap.org/forum/read.php?147,876357,879038#msg-879038 https://reprap.org/forum/read.php?147,876357,879038#msg-879038
Without knowing what versions of things you are running it is hard to be sure what is going on. I would be surprised if there is a general problem with responses. I have seen no problems when using a PanelDue to list files etc. I've just tested that configuration on beta3 with a GTR and that seems to work fine. It sounds more like an issue with the way that the TFT is talking to RRF. I don't have a TFT and so have no direct experience of using one, sorry, but there are a number of people using them and I have not seen this problem reported by any of them (but they may not be using the same hardware/firmware version as you so it is hard to say).

Have you tried the tuning thing on the Duet with two browser sessions active (using the same version of the firmware). I have been running a lot of tuning tests and have always seen correct responses. I'm not sure if using the tuning tests is a good as idea as a) This code is very new (and still experimental) b) It sort of runs the test in the background and so messages produced by it may get routed in a different way to the responses to more normal commands. You may be better off using something like m20 or m122 to test things.]]> gloomyandy Firmware - experimental, borrowed, and future Mon, 23 Nov 2020 07:30:57 -0500 https://reprap.org/forum/read.php?147,876357,879027#msg-879027 https://reprap.org/forum/read.php?147,876357,879027#msg-879027 here's my design for a mounting adapter to get the two to fit together.

I have been having one problem, though: G-code command output is sometimes lost. This is mostly a problem with the BTT TFT35-E3 LCD I'm using with the printer; attempts to begin a print from the SKR Pro's micro-SD card using the TFT35-E3 usually fail with a hung LCD because it's waiting for a file list that never comes. This happens with the stock TFT35-E3 firmware and with both the bcmob and JimmymaDdness forks of that firmware. When I use the LCD's built-in console to type "M20", it usually just hangs. On rare occasion (maybe 1 in 10 tries), I can get a file list, but the one time I tried to start a print, it failed. I originally thought this was a failing of the screen, but then I began noticing that commands sometimes display no results using the Web interface, too. I was trying out the new PID tuning feature last night, for instance, and it never produced any output for me, although I saw the temperature rise and fall repeatedly in the display, and typing "M500" produced a change to config-override.g with new M307 values. I also saw the output on a second computer's Web browser, which was simultaneously connected to the printer. (Two simultaneous Web sessions.) Thus, I suspect that g-code return data are getting lost somewhere internal to RepRapFirmware, or are being directed to the wrong output. I haven't had these problems with another printer with a genuine Duet 2 WiFi, so I suspect this may be specific to this fork of RepRapFirmware, although it's also possible that I just haven't noticed it on the Duet. Any clues about what's going on?]]> srs5694 Firmware - experimental, borrowed, and future Sun, 22 Nov 2020 20:38:24 -0500 https://reprap.org/forum/read.php?147,876357,878793#msg-878793 https://reprap.org/forum/read.php?147,876357,878793#msg-878793 DeltaDroid Firmware - experimental, borrowed, and future Thu, 12 Nov 2020 18:48:56 -0500 https://reprap.org/forum/read.php?147,876357,878788#msg-878788 https://reprap.org/forum/read.php?147,876357,878788#msg-878788 gloomyandy Firmware - experimental, borrowed, and future Thu, 12 Nov 2020 14:25:17 -0500 https://reprap.org/forum/read.php?147,876357,878784#msg-878784 https://reprap.org/forum/read.php?147,876357,878784#msg-878784 Crunch69 Firmware - experimental, borrowed, and future Thu, 12 Nov 2020 11:15:53 -0500 https://reprap.org/forum/read.php?147,876357,878774#msg-878774 https://reprap.org/forum/read.php?147,876357,878774#msg-878774 DeltaDroid Firmware - experimental, borrowed, and future Thu, 12 Nov 2020 01:22:02 -0500 https://reprap.org/forum/read.php?147,876357,878460#msg-878460 https://reprap.org/forum/read.php?147,876357,878460#msg-878460 www.bigtree-tech.com]]]> Crunch69 Firmware - experimental, borrowed, and future Sat, 31 Oct 2020 20:19:54 -0400 https://reprap.org/forum/read.php?147,876357,878216#msg-878216 https://reprap.org/forum/read.php?147,876357,878216#msg-878216 jay_s Firmware - experimental, borrowed, and future Tue, 20 Oct 2020 14:31:04 -0400 https://reprap.org/forum/read.php?147,876357,878214#msg-878214 https://reprap.org/forum/read.php?147,876357,878214#msg-878214 Great news, Im building a corexyu machine, is there any change of the extension board becoming an option ?
I need about 10 drivers, and already have the gtr with ext board...]]> khessels Firmware - experimental, borrowed, and future Tue, 20 Oct 2020 13:56:11 -0400 https://reprap.org/forum/read.php?147,876357,877503#msg-877503 https://reprap.org/forum/read.php?147,876357,877503#msg-877503 [github.com]]]> ghent360 Firmware - experimental, borrowed, and future Sun, 20 Sep 2020 20:20:51 -0400 https://reprap.org/forum/read.php?147,876357,877496#msg-877496 https://reprap.org/forum/read.php?147,876357,877496#msg-877496 gloomyandy Firmware - experimental, borrowed, and future Sun, 20 Sep 2020 13:28:46 -0400 https://reprap.org/forum/read.php?147,876357,877480#msg-877480 https://reprap.org/forum/read.php?147,876357,877480#msg-877480 ghent360 Firmware - experimental, borrowed, and future Sat, 19 Sep 2020 19:22:06 -0400 https://reprap.org/forum/read.php?147,876357,877451#msg-877451 https://reprap.org/forum/read.php?147,876357,877451#msg-877451 The source has been released at [github.com]

RRF 3.2 beta 1 has also been released at [github.com]]]> jay_s Firmware - experimental, borrowed, and future Sat, 19 Sep 2020 01:06:35 -0400 https://reprap.org/forum/read.php?147,876357,877448#msg-877448 https://reprap.org/forum/read.php?147,876357,877448#msg-877448 ghent360 Firmware - experimental, borrowed, and future Fri, 18 Sep 2020 18:37:35 -0400 https://reprap.org/forum/read.php?147,876357,877185#msg-877185 https://reprap.org/forum/read.php?147,876357,877185#msg-877185 gloomyandy Firmware - experimental, borrowed, and future Thu, 10 Sep 2020 23:24:22 -0400 https://reprap.org/forum/read.php?147,876357,877184#msg-877184 https://reprap.org/forum/read.php?147,876357,877184#msg-877184 Can the Raspberry pi interface plug / ribbon cable on the BTT GTR V1.0 be used for the SBC Duetpi connection?
Is the +M5 expansion module functionality part of the project?

Thanq for the great work]]> Crunch69 Firmware - experimental, borrowed, and future Thu, 10 Sep 2020 23:08:58 -0400 https://reprap.org/forum/read.php?147,876357,877063#msg-877063 https://reprap.org/forum/read.php?147,876357,877063#msg-877063 gloomyandy Firmware - experimental, borrowed, and future Tue, 08 Sep 2020 08:35:04 -0400 https://reprap.org/forum/read.php?147,876357,877049#msg-877049 https://reprap.org/forum/read.php?147,876357,877049#msg-877049 It will be, it just needs further work first]]> jay_s Firmware - experimental, borrowed, and future Tue, 08 Sep 2020 00:56:48 -0400 https://reprap.org/forum/read.php?147,876357,877046#msg-877046 https://reprap.org/forum/read.php?147,876357,877046#msg-877046 ghent360 Firmware - experimental, borrowed, and future Mon, 07 Sep 2020 19:30:33 -0400 https://reprap.org/forum/read.php?147,876357,876439#msg-876439 https://reprap.org/forum/read.php?147,876357,876439#msg-876439 Crunch69 Firmware - experimental, borrowed, and future Sat, 22 Aug 2020 17:38:04 -0400 https://reprap.org/forum/read.php?147,876357,876405#msg-876405 https://reprap.org/forum/read.php?147,876357,876405#msg-876405 Sorry.]]> Serge_P Firmware - experimental, borrowed, and future Fri, 21 Aug 2020 18:07:53 -0400 https://reprap.org/forum/read.php?147,876357,876397#msg-876397 https://reprap.org/forum/read.php?147,876357,876397#msg-876397 From the wiki...
If you are using pronteface, it will convert all text to upper case, in which case, if you wanted to use “PassWord”, you would write P”P’a’s’sW’o’r’d” with the ‘ indicating the following letter should be lower case]]> jay_s Firmware - experimental, borrowed, and future Fri, 21 Aug 2020 14:17:31 -0400 https://reprap.org/forum/read.php?147,876357,876394#msg-876394 https://reprap.org/forum/read.php?147,876357,876394#msg-876394 I have an issue withe your nodemcu preflashed. I have set the SSID and the password. The nodemcu reports "Recv: WiFi reported error: no known networks found"
I found, i have to write the ' before the letters. So it works now, but, when i power the printer, the nodemcu dont connect to the wifi.
Is the nodemcu has the old config that not worked in his memory ?
How can i save the good config ?
Can you help me ?
Thanks.]]> Serge_P Firmware - experimental, borrowed, and future Fri, 21 Aug 2020 13:50:25 -0400 https://reprap.org/forum/read.php?147,876357,876357#msg-876357 https://reprap.org/forum/read.php?147,876357,876357#msg-876357 [drive.google.com]

This port is an enhanced version of the RepRap Firmware LPC176x port and much of the documentation/features etc. applies to both.
Currently the following boards are supported:

• BTT SKR Pro V1.1
• BTT SKR Pro V1.2
• BTT GTR V1.0 (The expansion board is not currently supported)

Two versions of the firmware are provided:

• firmware-wifi.bin supports access by an ESP8266 WiFi module.
• firmware-sbc.bin supports connection to a Raspberry Pi SBC.

Both versions have USB and serial ports enabled.

For more information on installing and configuring the firmware please see the STM32F4 sections of the Wiki:
[github.com]

For help with generating RRF configuration files please see the online configuration tool (which has been updated for this release):
[jaysuk.github.io]

For help and general discussion please use the discord server:
[discord.gg]

I'd like to thank jay_s and PCR for their work in supporting the LPC version (WiKi, Hardware, Config tool, Discord and lots more) and all of their support and testing of
early versions of this software. I'd also like to thank SDavi and DC42 for all of their contributions to RRF.

Please note the following:

• The WiFi version of this firmware requires updated firmware on the ESP8266 (it removes the small number of active socket limitation
  used with the LPC version). The updated ESP8266 firmware is provided in the link above (see the WiKi for programming details).
• The SBC version of this firmware removes many of the limitations present in the LPC port (which are due to memory constraints), because of
  this the STM32F4 version now uses the standard Duet3D SBC RPi software not the version modified for the LPC.
• As with the LPC version of RRF the WiFi module and SBC is connected via the EXP1 and EXP2 headers. However it should be noted that the orientation of
  these headers is different on the STM32F4 boards which may make using existing adaptors difficult. Watch this space for news of
  STM32F4 specific boards.
• PLEASE DO NOT LEAVE ANY HARDWARE RUNNING THIS FIRMWARE UNATTENDED. This version is very new and has only received
  a small amount of testing. It may be used to control heaters and other hardware that in some situations could be dangerous. Please
  monitor operation carefully and use this firmware at your own risk.

]]> gloomyandy Firmware - experimental, borrowed, and future Thu, 20 Aug 2020 16:36:18 -0400