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https://github.com/MarlinFirmware/Marlin.git
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f3f26f7cb3
Reverse engineered from the unpublished firmware from Creality, inferring the base version and configuration they used. The basis is the firmware version from "Jul 31 2017 10:16:30". Configurations were found by seeing what code was compiled into the firmware, and constants used there. They used Marlin 1.0.1, because * 1.0.0 had very different serial output in `setup()` and overall code structure. * 1.0.2 changed the `VERSION_STRING` to include a leading space, and `lcd_init` uses `SET_INPUT` instead of `pinMode`. For U8Glib, a version between 1.14 and 1.17 was used, because * 1.12 didn't have the extra speed argument to u8g_InitCom. * 1.13 didn't have the soft reset instruction for UC1701 initialization. * 1.18 has a new directory structure. Quirks * The value of PID_dT hints that F_CPU is 20M, but MarlinSerial.begin suggests it's indeed 16M (and the board uses 16M). Left at 16M for now. * The LED and DOGLCD_CS are on the same pin.
19 lines
1013 B
Markdown
19 lines
1013 B
Markdown
# Creality Ender Support
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This branch is a reverse-engineered version based on the unpublished firmware from Creality. It is **not** the authoritative source, but has been carefully re-built by looking at their firmware and inferring the base version and configuration they used. The basis is the firmware version from "Jul 31 2017 10:16:30". It is based on Marlin 1.0.1, because
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* 1.0.0 had very different serial output in `setup()` and overall code structure.
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* 1.0.2 changed the `VERSION_STRING` to include a leading space, and `lcd_init` uses `SET_INPUT` instead of `pinMode`.
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Configurations were found by seeing what code was compiled into the firmware, and constants used there.
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For U8Glib, at least version 1.14 and at most 1.17 is used, because
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* 1.12 didn't have the extra speed argument to u8g_InitCom.
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* 1.13 didn't have the soft reset instruction for UC1701 initialization.
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* 1.18 has a new directory structure.
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## Bitmaps
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The bootscreen and custom status screens come from Creality's firmware.
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