Configuration#

EMBER_HEAP_SIZE#

#define EMBER_HEAP_SIZE

2000

The size in bytes of the Ember heap. See Memory Buffer for more details.

Warnings

• This should be configured from the Parent Support plugin options.

EMBER_CHILD_TABLE_SIZE#

#define EMBER_CHILD_TABLE_SIZE

0

The maximum number of children supported by the device. Can be configured from 0 to 64. 11B of token space is allocated for each child in the table.

Note

• It's recommended to set it to 64 for EMBER_STAR_COORDINATOR, 32 for EMBER_STAR_RANGE_EXTENDER and 0 for anything else.

Warnings

• This should be configured from the Parent Support plugin options.

EMBER_CHILD_TABLE_TOKEN_SIZE#

#define EMBER_CHILD_TABLE_TOKEN_SIZE

EMBER_CHILD_TABLE_SIZE

EMBER_CHILD_TIMEOUT_SEC#

#define EMBER_CHILD_TIMEOUT_SEC

3600

Every child should exchange regularly some sort of traffic with the parent. Eventually, if traffic is not exchanged for a prolonged period of time, the parent may remove the child from the child table. In particular the parent shall remove the oldest stale child whenever the child table is full and there is the need of making room for a new child. Range extenders periodically exchange network-level commands with the coordinator. End devices and sleepy end devices can use emberPollForData() as keep alive mechanism, or use the Poll Plugin plugin. The maximum allowed timeout value is EMBER_CHILD_TABLE_MAX_TIMEOUT_S. Setting the timeout value to EMBER_CHILD_TABLE_AGING_DISABLED disables aging of the child table.

Warnings

• This should be configured from the Parent Support plugin options.

EMBER_INDIRECT_QUEUE_SIZE#

#define EMBER_INDIRECT_QUEUE_SIZE

0

Indirect queue is used on a parent to store a message intended for a sleepy end device, this configures the size of that queue. Configure it to 0 if parent support plugin is not used.

Warnings

• This should be configured from the Parent Support plugin options.

EMBER_MAC_OUTGOING_QUEUE_SIZE#

#define EMBER_MAC_OUTGOING_QUEUE_SIZE

0

MAC Outgoing paclet queue is to store messages until the radio is available to send it (In most cases, the radio is unavailable because it's already transmitting). The configures the size of that queue.

Warnings

• This should be configured from the MAC Packet Queue plugin options.

EMBER_INDIRECT_TRANSMISSION_TIMEOUT_MS#

#define EMBER_INDIRECT_TRANSMISSION_TIMEOUT_MS

8000

The maximum amount of time (in milliseconds) that the MAC will hold a message for indirect transmission to a child. The maximum value is 30 seconds (30000 milliseconds).

Warnings

• This should be configured from the Parent Support plugin options.

EMBER_NWK_RANGE_EXTENDER_UPDATE_PERIOD_SEC#

#define EMBER_NWK_RANGE_EXTENDER_UPDATE_PERIOD_SEC

60

The period in seconds a range extender sends an update command to the coordinator containing the list of its children.

• This option is only used on EMBER_STAR_RANGE_EXTENDER device.

EMBER_MAC_ACK_TIMEOUT_MS#

#define EMBER_MAC_ACK_TIMEOUT_MS

25

The ACK timeout in milliseconds. This parameter should be fine-tuned to reduce energy consumption for sleepy devices and depends on the data rate of the PHY configuration used. The maximum allowed value is 65.

EMBER_RADIO_CCA_THRESHOLD#

#define EMBER_RADIO_CCA_THRESHOLD

-65

The CCA threshold used at the MAC layer for CSMA/CA, in dBm.

Warnings

• This should be configured from the Connect Stack plugin options.

EMBER_FREQUENCY_HOPPING_SEED#

#define EMBER_FREQUENCY_HOPPING_SEED

0

The frequency hopping channel sequence generation seed. Can be configured between 0 and 65535. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_START_CHANNEL#

#define EMBER_FREQUENCY_HOPPING_START_CHANNEL

0

The lowest channel on the frequency hopping list. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_END_CHANNEL#

#define EMBER_FREQUENCY_HOPPING_END_CHANNEL

24

The highest channel on the frequency hopping list. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_CHANNEL_DURATION_MS#

#define EMBER_FREQUENCY_HOPPING_CHANNEL_DURATION_MS

400

The time in milliseconds to stay on each channel for frequency hopping. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_CHANNEL_GUARD_DURATION_MS#

#define EMBER_FREQUENCY_HOPPING_CHANNEL_GUARD_DURATION_MS

20

The time in milliseconds to guard each channel while frequency hopping. No MAC activity is allowed when entering or exiting the slot. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_SERVER_FREQ_INFO_BROADCAST_PERIOD_S#

#define EMBER_FREQUENCY_HOPPING_SERVER_FREQ_INFO_BROADCAST_PERIOD_S

15

The duration in seconds after which the server should broadcast its frequency hopping information to allow clients to realign. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_SLEEPY_CLIENT_RESYNC_PERIOD_S#

#define EMBER_FREQUENCY_HOPPING_SLEEPY_CLIENT_RESYNC_PERIOD_S

60

The duration in seconds after which a sleepy client should resync with the server if the last resync happened more than this duration ago. See the Frequency Hopping chapter of UG235.03 for more details.

EMBER_FREQUENCY_HOPPING_ALWAYS_ON_CLIENT_SYNC_TIMEOUT_S#

#define EMBER_FREQUENCY_HOPPING_ALWAYS_ON_CLIENT_SYNC_TIMEOUT_S

(100)

The maximum duration in seconds a non sleepy client would keep hopping without receiving frequency hopping information from the server, after which the synchronization with the server is deemed lost. A special value of EMBER_FREQUENCY_HOPPING_ALWAYS_ON_CLIENT_SYNC_DISABLE_TIMEOUT disables this timeout.

EMBER_FREQUENCY_HOPPING_SERVER_ADVERTISING_ITERATION_COUNT#

#define EMBER_FREQUENCY_HOPPING_SERVER_ADVERTISING_ITERATION_COUNT

(3)

When a node is started a frequency hopping server, it will first advertise on all channels to resynchronize all existing clients in case the server was started as result of a reboot. This parameter defines the number of iterations over the entire hopping sequence.

EMBER_COORDINATOR_FIRST_SHORT_ID_TO_BE_ASSIGNED#

#define EMBER_COORDINATOR_FIRST_SHORT_ID_TO_BE_ASSIGNED

1

An EMBER_STAR_COORDINATOR assigns short IDs to other nodes in the star network sequentially starting from this short ID. This option provides a simple effective way to reserve an pool of short addresses for commissioning.

EMBER_SECURITY_SHORT_TO_LONG_MAPPING_TABLE_SIZE#

#define EMBER_SECURITY_SHORT_TO_LONG_MAPPING_TABLE_SIZE

10

The size of the short-to-long address mapping table. See emberMacAddShortToLongAddressMapping for more details.

• This table is only used for EMBER_MAC_MODE_DEVICE and EMBER_MAC_MODE_SLEEPY_DEVICE, but the memory will be allocated on all device types.

EMBER_CSP_CALLBACK_MESSAGE_BUFFER_SIZE#

#define EMBER_CSP_CALLBACK_MESSAGE_BUFFER_SIZE

127

The size of the the receiving buffer in CSP Callbacks.

• This must be set high enough depending on the PHY to prevent buffer overflow. In SUN PHYs (OFDM and FSK), the max message length is 2048. Considering the impact of this parameter on the stack size, this needs to be fine tuned according the need of the application