Atmel AVR2070 - Manual (Page 51)

AVR2070
51
8240B-AVR-06/09
For more detailed examples of association and sending sensor data, see MAC
function calls and Sensor application function calls.
There are a few other useful functions that the MAC offers. These functions are useful
for making a non-networking application, such as a remote control unit.
• macIsChild() reports on whether a given node is a child of this node.
• macSetOperatingChannel() can be used to manually set the radio channel.
• radioGetPartnum() will query the Atmel transceiver and return the part
number.
• radioGetSavedRssiValue() returns the last measured received signal
strength indication (RSSI) value for a received packet.
• radioGetSavedLqiValue() returns the last measured link quality indication
(LQI) value for a received packet.
• radioGetOperatingChannel()
• radioGetTxPowerLevel() and radioSetTxPowerLevel() set and read the
output RF power levels
• radioBatmonGetVoltageThreshold(), radioBatmonGetVoltageRange(),
radioBatmonConfigure(), and radioBatmonGetStatus() are used to work
with the RF2xx on-board battery monitor function.
• radioGetClockSpeed() and radioSetClockSpeed() allow the use of the
RF2xx CLKM signal, which can be used to clock the CPU or provide an
accurate timebase to calibrate any other oscillator.
• radioEnterSleepMode() puts the transceiver to sleep and
radioLeaveSleepMode() wakes up the transceiver.
• radioSendData() sends a "raw" packet over the radio. This is a lower-level
function that RUM uses to send data to another node.
• radioRandom() returns up to 8 bits of random data, created from the random
radio noise on the RF2xx radio. The RF230 does not have a random number
generator, so the radioRandom function only returns a random number from
the rand() system function.
• nodeSleep() Puts the entire node to sleep for a specified time.
Other MAC parameters reside in the macConfig structure. While this structure is not
meant to be used by the application directly, several useful parameters are available
for reference:
• longAddr - The long (MAC) address of this node
• associated - True if this node has been associated to a network
• panId - The PAN ID of this node
• shortAddress - the short address of this node
• parentShortAddress - the short address of this node's parent
• currentChannel - the current radio channel selected
The timer module can be used by an application to execute functions after a non-
blocking delay.
The Serial Port module provides a serial port for the AVR targets.