File syn_rc_failsafe.h¶

FileList > control > syn_rc_failsafe.h

Zero-Heap RC Safety Failsafe Manager & Watchdog. More...

#include "syntropic/common/syn_defs.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

Classes¶

Type	Name
struct	SYN_Failsafe_Config
struct	SYN_Failsafe_Manager

Public Types¶

Type	Name
enum	SYN_Failsafe_ChannelMode

Public Functions¶

Type	Name
SYN_Status	syn_failsafe_feed_frame (SYN_Failsafe_Manager * mgr, const uint16_t * in_channels, uint8_t num_channels, uint32_t timestamp_ms) Register valid incoming frame from RC receiver (resets watchdog timer).
SYN_Status	syn_failsafe_init (SYN_Failsafe_Manager * mgr, const SYN_Failsafe_Config * config) Initialize failsafe manager instance.
bool	syn_failsafe_step (SYN_Failsafe_Manager * mgr, uint32_t now_ms, uint16_t * out_channels) Step failsafe manager state machine and retrieve active channels (or fallback channels if timed out).

Macros¶

Type	Name
define	SYN_RC_FAILSAFE_MAX_CHANNELS `16U`

Detailed Description¶

Monitors receiver frame updates and enforces pre-configured failsafe fallback positions or emergency disarming if signal loss exceeds timeout threshold.

Public Types Documentation¶

enum SYN_Failsafe_ChannelMode¶

enum SYN_Failsafe_ChannelMode {
    SYN_FAILSAFE_HOLD = 0,
    SYN_FAILSAFE_FALLBACK,
    SYN_FAILSAFE_DISARM
};

Failsafe Channel Mode.

Public Functions Documentation¶

function syn_failsafe_feed_frame¶

Register valid incoming frame from RC receiver (resets watchdog timer).

SYN_Status syn_failsafe_feed_frame (
    SYN_Failsafe_Manager * mgr,
    const uint16_t * in_channels,
    uint8_t num_channels,
    uint32_t timestamp_ms
)

Parameters:

mgr Pointer to failsafe manager struct.
in_channels Pointer to array of channel pulse widths in us.
num_channels Total channels provided (max 16).
timestamp_ms Current system timestamp in ms.

Returns:

SYN_OK on success.

function syn_failsafe_init¶

Initialize failsafe manager instance.

SYN_Status syn_failsafe_init (
    SYN_Failsafe_Manager * mgr,
    const SYN_Failsafe_Config * config
)

Parameters:

mgr Pointer to failsafe manager struct.
config Pointer to failsafe configuration struct.

Returns:

SYN_OK on success, SYN_INVALID_PARAM if NULL.

function syn_failsafe_step¶

Step failsafe manager state machine and retrieve active channels (or fallback channels if timed out).

bool syn_failsafe_step (
    SYN_Failsafe_Manager * mgr,
    uint32_t now_ms,
    uint16_t * out_channels
)

Parameters:

mgr Pointer to failsafe manager struct.
now_ms Current system timestamp in ms.
out_channels Pointer to output channel array (must hold at least 16 uint16_t values).

Returns:

true if system is currently in Failsafe state, false if active link.

Macro Definition Documentation¶

define SYN_RC_FAILSAFE_MAX_CHANNELS¶

#define SYN_RC_FAILSAFE_MAX_CHANNELS `16U`

Maximum supported failsafe RC channels.

The documentation for this class was generated from the following file src/syntropic/control/syn_rc_failsafe.h