!!WORK IN PROGRESS!! Marlin-bugfix-2.0.x for Bigtreetech / BIQU SKR v1.1

...running on a printer formerly known as a TronXY X5S

3D printer parts and enhancements


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This is a working BIQU SKR sample configuration and binary for my (heavily modified) TronXY X5S, compiled from the Marlin main branch (not the dedicated BIQU version), including the stock TronXY display with manually retrofitted SD-card slot and TMC2130 drivers in SPI mode.

Use this for reference or test - but note, that your specific printer WILL BE DIFFERENT!
=> http://marlinfw.org/docs/configuration/configuration.html
==> Modify all three headers: Configuration.h, Configuration_adv.h & pins_BIQU_SKR_V1.1.h!

Progress will be documented on my blog (https://burningbecks.wordpress.com/) once it's not changing weekly anymore.

Trinamic driver SPI wired according to "myseg":

CS and EN on the same pin seems strange? Yes, it is!
=> https://github.com/MarlinFirmware/Marlin/issues/12632#issuecomment-453758717

Also mind these issues:
https://github.com/MarlinFirmware/Marlin/pull/8122 (Garbaged display on shared SPI)
https://github.com/MarlinFirmware/Marlin/issues/11024 (No linear advance with TMC2130 in SpreadCycle mode)

If your board doesn't connect via USB after the update: Hit "reset" again!

If you didn't get one yet, consier waiting - according to the "BIGTREETECH Public Group" on Facebook the v1.2 is already under way.

Materials and methods

Complied via "PlatformIO with Atom" => http://marlinfw.org/docs/basics/install_platformio.html

BIQU SKR: https://www.biqu.equipment/collections/control-board-kits/products/bigtreetech-skr-v1-1-motherboard-32-bit-smoothieboard-arm-cpu-control-board-open-source-for-tft3-5-printer-pannel
[ Just linked this as reference - ordered mine via Aliexpress. ;-) ]


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    H  β€“  75 kb
    Version 1 - Feb 03, 2019
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    Configuration Adv
    H  β€“  82 kb
    Version 1 - Feb 03, 2019
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    BIN  β€“  170 kb
    Version 1 - Feb 03, 2019


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Mini dabdc4c89cb613860acdd1e3421ec3a2Manan added this to the Tronxy X5SA update collection ago
465727266d141903a2b4930cecf4ad58?default=blank&size=40Burning Becks published this design ago