Set default I2C clock speed to 100kHz for split_common (#6161)

* Set default I2C clock rate for split_common boards to 100kHz Default from I2C driver is 400kHz. * Update documentation for setting I2C clock speed
2019-06-20 01:02:20 -04:00
parent 5f0ab5a24b
commit 810c8db770
2 changed files with 6 additions and 2 deletions
--- a/quantum/split_common/post_config.h
+++ b/quantum/split_common/post_config.h
@@ -4,6 +4,10 @@
    #define RGBLIGHT_SPLIT
  #endif

+  #ifndef F_SCL
+    #define F_SCL 100000UL  // SCL frequency
+  #endif
+
 #else  // use serial
  // When using serial, the user must define RGBLIGHT_SPLIT explicitly
  //  in config.h as needed.