File syn_dshot.c

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Zero-Heap DShot (DShot150/300/600) Digital ESC Driver Implementation.

• #include "syntropic/output/syn_dshot.h"

Public Functions

Type	Name
uint8_t	syn_dshot_calc_crc (uint16_t payload_12bit) Calculate 4-bit DShot CRC for an 12-bit payload ( throttle[11:1] +telemetry[0] ).
SYN_Status	syn_dshot_encode (uint16_t throttle, bool telemetry, SYN_DShot_Packet * packet) Encode throttle value and telemetry flag into a 16-bit DShot frame.
uint16_t	syn_dshot_us_to_throttle (uint16_t us) Convert standard 1000..2000 us RC pulse width to DShot 48..2047 throttle value.

Public Functions Documentation

function syn_dshot_calc_crc

Calculate 4-bit DShot CRC for an 12-bit payload ( throttle[11:1] +telemetry[0] ).

uint8_t syn_dshot_calc_crc (
    uint16_t payload_12bit
) 

Parameters:

• payload_12bit 12-bit value (throttle << 1) | (telemetry ? 1 : 0).

Returns:

4-bit CRC value.

---

function syn_dshot_encode

Encode throttle value and telemetry flag into a 16-bit DShot frame.

SYN_Status syn_dshot_encode (
    uint16_t throttle,
    bool telemetry,
    SYN_DShot_Packet * packet
) 

Parameters:

• throttle 11-bit throttle value (clamped 0..2047).
• telemetry Telemetry request flag.
• packet Pointer to output packet struct.

Returns:

SYN_OK on success, SYN_INVALID_PARAM if packet is NULL.

---

function syn_dshot_us_to_throttle

Convert standard 1000..2000 us RC pulse width to DShot 48..2047 throttle value.

uint16_t syn_dshot_us_to_throttle (
    uint16_t us
) 

Parameters:

• us Pulse width in microseconds (1000..2000 us).

Returns:

DShot throttle value (0 if us < 1048, 48..2047).

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The documentation for this class was generated from the following file src/syntropic/output/syn_dshot.c