WIP sercomm implementation

- moved some module-specific constants to their respective header files
- changed .clang-tidy to ignore global private global constants
  (starting with `_`)
- suppressed some GCC warnings in bin.c and all pololu library warnings
- added function signatures for sercomm protocol data generators
- added endianness check in setup.c

1 files changed, 9 insertions, 0 deletions

diff --git a/robot/setup.c b/robot/setup.c
index c74cca9..bdd5991 100644
--- a/robot/setup.c
+++ b/robot/setup.c
@@ -5,8 +5,17 @@
 #include "modes.h"
 #include "orangutan_shim.h"
 #include "setup.h"
+#include "bin.h"
+
+// pointers for endianness check
+static const uint16_t _test = 1;
+static const uint8_t* _ptest = (uint8_t*)&_test;
+uint8_t g_w2_endianness;
 
 void w2_setup_main() {
+	// check endianness
+	g_w2_endianness = *_ptest;
+
 	serial_set_baud_rate(W2_SERIAL_BAUD);
 
 	// reset underside leds