spektrum_rssi.h File Reference

RSSI dBm to percentage conversion for Spektrum telemetry receivers. More...

#include <climits>

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Macros
#define	MASK(n)   (n >> (sizeof(n) * CHAR_BIT - 1))

Functions
constexpr unsigned	c_abs (int n)
constexpr int8_t	spek_dbm_to_percent (int8_t dbm)

Variables
constexpr int8_t	lu_dbm_percent []

Detailed Description

RSSI dBm to percentage conversion for Spektrum telemetry receivers.

Author

Kurt Kiefer kekie.nosp@m.fer@.nosp@m.gmail.nosp@m..com

Definition in file spektrum_rssi.h.

Macro Definition Documentation

MASK

#define MASK

(

n

)

(n >> (sizeof(n) * CHAR_BIT - 1))

Definition at line 70 of file spektrum_rssi.h.

Referenced by c_abs().

Function Documentation

c_abs()

constexpr unsigned c_abs

(

int

n

)

Definition at line 73 of file spektrum_rssi.h.

References MASK.

Referenced by spek_dbm_to_percent().

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spek_dbm_to_percent()

constexpr int8_t spek_dbm_to_percent

(

int8_t

dbm

)

Definition at line 79 of file spektrum_rssi.h.

References c_abs(), and lu_dbm_percent.

Referenced by dsm_decode().

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Variable Documentation

lu_dbm_percent

constexpr int8_t lu_dbm_percent[]

Initial value:

= {
    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 99,  98,  98,  97,  96,
    95,  94,  93,  92,  91,  90,  89,  88,  87,  86,  85,  84,  83,  82,  81,  79,
    78,  77,  75,  74,  73,  71,  70,  68,  66,  65,  63,  61,  59,  57,  55,  52,
    50,  47,  45,  42,  39,  35,  32,  28,  24,  19,  13,  7,   0,   0,   0,   0,
    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
    0,
}

Definition at line 58 of file spektrum_rssi.h.

Referenced by spek_dbm_to_percent().