Reduce SPLIT_USB_TIMEOUT by 500ms (#7637)

* Update SPLIT_USB_TIMEOUT -500ms

* Align keyboard level SPLIT_USB_TIMEOUT defaults

* Align keyboard level SPLIT_USB_TIMEOUT_POLL

* Review fixes

2 files changed, 10 insertions, 2 deletions

diff --git a/docs/config_options.md b/docs/config_options.md
index 6df082335..be328405e 100644
--- a/docs/config_options.md
+++ b/docs/config_options.md
@@ -276,9 +276,12 @@ There are a few different ways to set handedness for split keyboards (listed in
   * Default behavior for ARM
   * Required for AVR Teensy
 
-* `#define SPLIT_USB_TIMEOUT 2500`
+* `#define SPLIT_USB_TIMEOUT 2000`
   * Maximum timeout when detecting master/slave when using `SPLIT_USB_DETECT`
 
+* `#define SPLIT_USB_TIMEOUT_POLL 10`
+  * Poll frequency when detecting master/slave when using `SPLIT_USB_DETECT`
+
 # The `rules.mk` File
 
 This is a [make](https://www.gnu.org/software/make/manual/make.html) file that is included by the top-level `Makefile`. It is used to set some information about the MCU that we will be compiling for as well as enabling and disabling certain features.
diff --git a/docs/feature_split_keyboard.md b/docs/feature_split_keyboard.md
index affce3429..66194c5f4 100644
--- a/docs/feature_split_keyboard.md
+++ b/docs/feature_split_keyboard.md
@@ -198,10 +198,15 @@ This option changes the startup behavior to detect an active USB connection when
 ?> This setting will stop the ability to demo using battery packs.
 
 ```c
-#define SPLIT_USB_TIMEOUT 2500
+#define SPLIT_USB_TIMEOUT 2000
 ```
 This sets the maximum timeout when detecting master/slave when using `SPLIT_USB_DETECT`.
 
+```c
+#define SPLIT_USB_TIMEOUT_POLL 10
+```
+This sets the poll frequency when detecting master/slave when using `SPLIT_USB_DETECT`
+
 ## Additional Resources
 
 Nicinabox has a [very nice and detailed guide](https://github.com/nicinabox/lets-split-guide) for the Let's Split keyboard, that covers most everything you need to know, including troubleshooting information.