allow bus overclock

.vscode/settings.json

@@ -1,20 +1,77 @@
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-        "utility": "cpp",
-        "*.d": "cpp",
-        "*.html": "cpp",
-        "*.tcc": "cpp",
-        "regex": "cpp"
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+  "C_Cpp.errorSquiggles": "enabled",
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+    "string": "cpp",
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+    "*.html": "cpp",
+    "*.tcc": "cpp",
+    "regex": "cpp"
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+  "C_Cpp_Runner.cCompilerPath": "gcc",
+  "C_Cpp_Runner.cppCompilerPath": "g++",
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+    "-Wconversion",
+    "-Wsign-conversion",
+    "-Wnull-dereference"
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+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
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+  "C_Cpp_Runner.useLeakSanitizer": false,
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+  "C_Cpp_Runner.useLinkTimeOptimization": false,
+  "C_Cpp_Runner.msvcSecureNoWarnings": false
 }

src/espmega_iot_core.cpp

@@ -144,6 +144,12 @@ void setup()
 #endif
   Serial.println("ESPMega R3 Initializing");
   ESPMega_begin();
+  #ifdef OVERCLOCK_FM2
+  Wire.setClock(1000000);
+  #endif
+  #ifdef OVERCLOCK_FM
+  Wire.setClock(400000);
+  #endif
   io_begin();
   eeprom_retrieve_init();
   user_pre_init();

src/user_code.hpp

@@ -6,6 +6,12 @@
 #include "espmega_iot_timer.hpp"
 #include "espmega_iot_external_lcd.hpp"
 
+// Bus Overclocking Configuration
+// Do not enable if you are using external I/O cards as it will cause signal integrity issues.
+// Choose only one mode
+//#define OVERCLOCK_FM
+//#define OVERCLOCK_FM2
+
 // Enable Software Module(s)
 #define ENABLE_INTERNAL_LCD
 #define ENABLE_IR_MODULE