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MC1322x SMAC Primitives
MC1322x SMAC Reference Manual, Rev. 1.7
3-8 Freescale Semiconductor
Arguments
u8HibClock Selects the clock to be used while hibernating. The possible values for this
argument are: gXtal32khz_c and gRingOsc2khz_c.
SleepCtl A structure of type crmSleepCtrl_t.
typedef struct
{
uint8_t sleepType:1;
uint8_t ramRet:2;
uint8_t mcuRet:1;
uint8_t digPadRet:1;
pfCallback_t pfToDoBeforeSleep;
}crmSleepCtrl_t;
Returns
gFailNoValidCondition_c When there is no wakeup source configured.
gFailOutOfRange_c When the u8HibClock argument is not a valid value.
gSuccess_c In any other case.
Usage
• Configures a wakeup source using MLMESetWakeupSource
• Must have an assigned interrupt handler if needed (CrmAssignHandler can be used)
• Calls MLMEHibernateRequest
3.2.10 MLMELinkQuality
This function reads the Link Quality Indication of the last received message.
Link Quality Indication (LQI) is an integer value from 0x00-0xFF.
0x00
Equates to -100 dBm
0xFF Equates to -15 dBm.
The LQI formula in dBm is as follows:
LQi(dbm) = (LQI(dec)/3)-100 Eqn. 3-1
Prototype
FuncReturn_t MLMELinkQuality (uint8_t * u8ReturnValue);
Arguments
u8ReturnValue A pointer to a 8 bit value where the LQI value will be stored.
Returns
gSuccess_c This function always return gSuccess_c.