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Merged sdlog_buffering branch

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Lorenz Meier
2013-01-10 14:43:59 +01:00
parent 1a107bd7bf 46cf2a538f
commit 1d4feb6905
67 changed files with 9568 additions and 315 deletions
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apps/systemlib/conversions.c
+10 -1
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@@ -42,6 +42,10 @@
#include "conversions.h"
#define air_gas_constant 8.31432f
#define air_density_sea_level 1.225f
#define absolute_null_kelvin 273.15f
int16_t
int16_t_from_bytes(uint8_t bytes[])
{
@@ -143,4 +147,9 @@ void quat2rot(const float Q[4], float R[9])
R[2] = 2.0F * (Q[1] * Q[3] - Q[0] * Q[2]);
R[5] = 2.0F * (Q[2] * Q[3] + Q[0] * Q[1]);
R[8] = ((q0_2 + q3_2) - q1_2) - q2_2;
}
}
float get_air_density(float static_pressure, float temperature_celsius)
{
return static_pressure/(air_gas_constant * (temperature_celsius + absolute_null_kelvin));
}