Tentative Teensy 3.5 support (#14420)

* Tentative Teensy 3.5 support

* Set firmware format to .hex for ARM Teensys

* Got to "device descriptor failed" by comparing with Teensy 3.6 code

* Drop down to 96MHz...

* Bump back up to 120MHz

1 files changed, 32 insertions, 0 deletions

diff --git a/keyboards/handwired/onekey/teensy_35/config.h b/keyboards/handwired/onekey/teensy_35/config.h
new file mode 100644
index 0000000000..a5f2c945c4
--- /dev/null
+++ b/keyboards/handwired/onekey/teensy_35/config.h
@@ -0,0 +1,32 @@
+/* Copyright 2019
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+// TODO: including this causes "error: expected identifier before '(' token" errors
+//#include "config_common.h"
+
+#define PRODUCT Onekey Teensy 3.5
+
+#define MATRIX_COL_PINS { D5 } // 20/A6
+#define MATRIX_ROW_PINS { B2 } // 19/A5
+#define UNUSED_PINS
+
+// i2c_master defines
+#define I2C1_SCL_PIN B0 // 16/A2 on pinout
+#define I2C1_SDA_PIN B1 // 17/A3 on pinout
+#define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATIVE_2
+#define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATIVE_2