Add support for MCU = STM32F446 (qmk#12619)

* Add support for MCU = STM32F446 * Update platforms/chibios/GENERIC_STM32_F446XE/configs/config.h Co-authored-by: Nick Brassel <nick@tzarc.org> * Restore mcuconf.h to the one used by RT-STM32F446RE-NUCLEO64 * stm32f446: update mcuconf.h and board.h for 16MHz operation, with USB enabled, and other peripherals disabled. Co-authored-by: Nick Brassel <nick@tzarc.org>
BorisTestov · Apr 25, 2021 · 7d6fae7 · 7d6fae7
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Showing 9 changed files with 455 additions and 2 deletions.
diff --git a/data/schemas/keyboard.jsonschema b/data/schemas/keyboard.jsonschema
@@ -25,7 +25,7 @@
         },
         "processor": {
             "type": "string",
-            "enum": ["cortex-m0", "cortex-m0plus", "cortex-m3", "cortex-m4", "MKL26Z64", "MK20DX128", "MK20DX256", "MK66F18", "STM32F042", "STM32F072", "STM32F103", "STM32F303", "STM32F401", "STM32F411", "STM32G431", "STM32G474", "atmega16u2", "atmega32u2", "atmega16u4", "atmega32u4", "at90usb162", "at90usb646", "at90usb647", "at90usb1286", "at90usb1287", "atmega32a", "atmega328p", "atmega328", "attiny85", "unknown"]
+            "enum": ["cortex-m0", "cortex-m0plus", "cortex-m3", "cortex-m4", "MKL26Z64", "MK20DX128", "MK20DX256", "MK66F18", "STM32F042", "STM32F072", "STM32F103", "STM32F303", "STM32F401", "STM32F411", "STM32F446", "STM32G431", "STM32G474", "atmega16u2", "atmega32u2", "atmega16u4", "atmega32u4", "at90usb162", "at90usb646", "at90usb647", "at90usb1286", "at90usb1287", "atmega32a", "atmega328p", "atmega328", "attiny85", "unknown"]
         },
         "board": {
             "type": "string",

diff --git a/docs/compatible_microcontrollers.md b/docs/compatible_microcontrollers.md
@@ -28,6 +28,7 @@ You can also use any ARM chip with USB that [ChibiOS](https://www.chibios.org) s
  * [STM32F303](https://www.st.com/en/microcontrollers-microprocessors/stm32f303.html)
  * [STM32F401](https://www.st.com/en/microcontrollers-microprocessors/stm32f401.html)
  * [STM32F411](https://www.st.com/en/microcontrollers-microprocessors/stm32f411.html)
+ * [STM32F446](https://www.st.com/en/microcontrollers-microprocessors/stm32f446.html)
  * [STM32G431](https://www.st.com/en/microcontrollers-microprocessors/stm32g4x1.html)
  * [STM32G474](https://www.st.com/en/microcontrollers-microprocessors/stm32g4x4.html)
 

diff --git a/docs/ja/compatible_microcontrollers.md b/docs/ja/compatible_microcontrollers.md
@@ -33,6 +33,7 @@ QMK は十分な容量のフラッシュメモリを備えた USB 対応 AVR ま
 * [STM32F303](https://www.st.com/en/microcontrollers-microprocessors/stm32f303.html)
 * [STM32F401](https://www.st.com/en/microcontrollers-microprocessors/stm32f401.html)
 * [STM32F411](https://www.st.com/en/microcontrollers-microprocessors/stm32f411.html)
+* [STM32F446](https://www.st.com/en/microcontrollers-microprocessors/stm32f446.html)
 * [STM32G431](https://www.st.com/en/microcontrollers-microprocessors/stm32g4x1.html)
 * [STM32G474](https://www.st.com/en/microcontrollers-microprocessors/stm32g4x4.html)
 

diff --git a/lib/python/qmk/constants.py b/lib/python/qmk/constants.py
@@ -10,7 +10,7 @@
 MAX_KEYBOARD_SUBFOLDERS = 5
 
 # Supported processor types
-CHIBIOS_PROCESSORS = 'cortex-m0', 'cortex-m0plus', 'cortex-m3', 'cortex-m4', 'MKL26Z64', 'MK20DX128', 'MK20DX256', 'MK66F18', 'STM32F042', 'STM32F072', 'STM32F103', 'STM32F303', 'STM32F401', 'STM32F411', 'STM32G431', 'STM32G474'
+CHIBIOS_PROCESSORS = 'cortex-m0', 'cortex-m0plus', 'cortex-m3', 'cortex-m4', 'MKL26Z64', 'MK20DX128', 'MK20DX256', 'MK66F18', 'STM32F042', 'STM32F072', 'STM32F103', 'STM32F303', 'STM32F401', 'STM32F411', 'STM32F446', 'STM32G431', 'STM32G474'
 LUFA_PROCESSORS = 'at90usb162', 'atmega16u2', 'atmega32u2', 'atmega16u4', 'atmega32u4', 'at90usb646', 'at90usb647', 'at90usb1286', 'at90usb1287', None
 VUSB_PROCESSORS = 'atmega32a', 'atmega328p', 'atmega328', 'attiny85'
 

diff --git a/platforms/chibios/GENERIC_STM32_F446XE/board/board.mk b/platforms/chibios/GENERIC_STM32_F446XE/board/board.mk
@@ -0,0 +1,9 @@
+# List of all the board related files.
+BOARDSRC = $(CHIBIOS)/os/hal/boards/ST_NUCLEO64_F446RE/board.c
+
+# Required include directories
+BOARDINC = $(CHIBIOS)/os/hal/boards/ST_NUCLEO64_F446RE
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC  += $(BOARDINC)
diff --git a/platforms/chibios/GENERIC_STM32_F446XE/configs/board.h b/platforms/chibios/GENERIC_STM32_F446XE/configs/board.h
@@ -0,0 +1,24 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#define STM32_HSECLK 16000000
+// The following is required to disable the pull-down on PA9, when PA9 is used for the keyboard matrix:
+#define BOARD_OTG_NOVBUSSENS
+
+#include_next "board.h"
+
+#undef STM32_HSE_BYPASS
diff --git a/platforms/chibios/GENERIC_STM32_F446XE/configs/config.h b/platforms/chibios/GENERIC_STM32_F446XE/configs/config.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 Andrei Purdea
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Address for jumping to bootloader on STM32 chips. */
+/* It is chip dependent, the correct number can be looked up by checking against ST's application note AN2606.
+ */
+#define STM32_BOOTLOADER_ADDRESS 0x1FFF0000
+#ifndef EARLY_INIT_PERFORM_BOOTLOADER_JUMP
+#    define EARLY_INIT_PERFORM_BOOTLOADER_JUMP TRUE
+#endif