diff options
-rw-r--r-- | firmware/system.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/firmware/system.h b/firmware/system.h index 9b1df03217..fdc472f5e2 100644 --- a/firmware/system.h +++ b/firmware/system.h | |||
@@ -25,6 +25,18 @@ | |||
25 | #define FREQ 12000000 /* cycle time ~83.3ns */ | 25 | #define FREQ 12000000 /* cycle time ~83.3ns */ |
26 | #define BAUDRATE 9600 | 26 | #define BAUDRATE 9600 |
27 | 27 | ||
28 | #ifndef NULL | ||
29 | #define NULL ((void*)0) | ||
30 | #endif | ||
31 | |||
32 | #ifndef MIN | ||
33 | #define MIN(a, b) (((a)<(b))?(a):(b)) | ||
34 | #endif | ||
35 | |||
36 | #ifndef MAX | ||
37 | #define MAX(a, b) MIN(b,a) | ||
38 | #endif | ||
39 | |||
28 | #ifdef LITTLE_ENDIAN | 40 | #ifdef LITTLE_ENDIAN |
29 | #define SWAB16(x) (x) | 41 | #define SWAB16(x) (x) |
30 | #define SWAB32(x) (x) | 42 | #define SWAB32(x) (x) |