diff options
| -rw-r--r-- | src/drivers/ublox-csum.5c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/drivers/ublox-csum.5c b/src/drivers/ublox-csum.5c new file mode 100644 index 00000000..4e0c7c5a --- /dev/null +++ b/src/drivers/ublox-csum.5c @@ -0,0 +1,23 @@ +#!/usr/bin/nickle +string[] speeds = { "57600", "19200", "9600" }; + +string make_set_nmea(string speed) { + return sprintf ("PUBX,41,1,3,1,%s,0", speed); +} + +int csum(string x) { + int csum = 0; + for (int i = 0; i < String::length(x); i++) + csum ^= x[i]; + return csum; +} + +for (int i = 0; i < dim(speeds); i++) { + string s = make_set_nmea(speeds[i]); + int c = csum(s); + printf ("/* $%s* */\n", s); + printf ("#define SERIAL_SPEED_STRING \"%s\"\n", speeds[i]); + printf ("#define SERIAL_SPEED_CHECKSUM \"%02x\"\n", c); +} + + |