STM32 EEPROM Emulation (#3741)

* STM32 EEPROM Emulation

- Added EEPROM emulation libaries from libmaple and Arduino_STM32. https://github.com/rogerclarkmelbourne/Arduino_STM32 and https://github.com/leaflabs/libmaple.
- Renamed teensy EEPROM library and added conditional selection of library.
- Remapped EEPROM memory map for 16 byte blocks (as is with STM32f3xx MCUs).
- Added EEPROM initialization in main.c of Chibios.
- Added EEPROM format to clear the emulated pages when EEPROM is marked as invalid.

* Fixed ifdef

1 files changed, 16 insertions, 0 deletions

diff --git a/tmk_core/common/eeconfig.h b/tmk_core/common/eeconfig.h
index 1397a90c7..fa498df48 100644
--- a/tmk_core/common/eeconfig.h
+++ b/tmk_core/common/eeconfig.h
@@ -25,6 +25,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define EECONFIG_MAGIC_NUMBER                       (uint16_t)0xFEED
 
 /* eeprom parameteter address */
+#if !defined(STM32F303xC)
 #define EECONFIG_MAGIC                              (uint16_t *)0
 #define EECONFIG_DEBUG                              (uint8_t *)2
 #define EECONFIG_DEFAULT_LAYER                      (uint8_t *)3
@@ -38,6 +39,21 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // EEHANDS for two handed boards
 #define EECONFIG_HANDEDNESS                                     (uint8_t *)14
 
+#else
+/* STM32F3 uses 16byte block. Reconfigure memory map */
+#define EECONFIG_MAGIC                              (uint16_t *)0
+#define EECONFIG_DEBUG                              (uint8_t *)1
+#define EECONFIG_DEFAULT_LAYER                      (uint8_t *)2
+#define EECONFIG_KEYMAP                             (uint8_t *)3
+#define EECONFIG_MOUSEKEY_ACCEL                     (uint8_t *)4
+#define EECONFIG_BACKLIGHT                          (uint8_t *)5
+#define EECONFIG_AUDIO                              (uint8_t *)6
+#define EECONFIG_RGBLIGHT                           (uint32_t *)7
+#define EECONFIG_UNICODEMODE                        (uint8_t *)9
+#define EECONFIG_STENOMODE                          (uint8_t *)10
+// EEHANDS for two handed boards
+#define EECONFIG_HANDEDNESS                                     (uint8_t *)11
+#endif
 
 /* debug bit */
 #define EECONFIG_DEBUG_ENABLE                       (1<<0)