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fixed bug that made radio die after error when not using default channel and/or not using a RDC protocol

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This commit is contained in:
Michael Karlsson 2015-01-21 22:28:31 +01:00
parent 7841eface3
commit 37def294ce
1 changed files with 26 additions and 3 deletions
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29
cpu/cc2538/dev/cc2538-rf.c
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@ -122,6 +122,7 @@ static const uint8_t magic[] = { 0x53, 0x6E, 0x69, 0x66 }; /** Snif */
#endif
/*---------------------------------------------------------------------------*/
static uint8_t rf_flags;
static uint8_t rf_channel = CC2538_RF_CHANNEL;
static int on(void);
static int off(void);
@ -186,10 +187,22 @@ set_channel(uint8_t channel)
}
/* Changes to FREQCTRL take effect after the next recalibration */
off();
/* If we are off, save state, otherwise switch off and save state */
if((REG(RFCORE_XREG_FSMSTAT0) & RFCORE_XREG_FSMSTAT0_FSM_FFCTRL_STATE) == 0) {
rf_flags |= WAS_OFF;
} else {
rf_flags &= ~WAS_OFF;
off();
}
REG(RFCORE_XREG_FREQCTRL) = (CC2538_RF_CHANNEL_MIN
+ (channel - CC2538_RF_CHANNEL_MIN) * CC2538_RF_CHANNEL_SPACING);
on();
/* switch radio back on only if radio was on before - otherwise will turn on radio foor sleepy nodes */
if((rf_flags & WAS_OFF) != WAS_OFF) {
on();
}
rf_channel = channel;
return (int8_t) channel;
}
@ -445,7 +458,7 @@ init(void)
/* Set TX Power */
REG(RFCORE_XREG_TXPOWER) = CC2538_RF_TX_POWER;
set_channel(CC2538_RF_CHANNEL);
set_channel(rf_channel);
/* Acknowledge RF interrupts, FIFOP only */
REG(RFCORE_XREG_RFIRQM0) |= RFCORE_XREG_RFIRQM0_FIFOP;
@ -953,8 +966,18 @@ PROCESS_THREAD(cc2538_rf_process, ev, data)
if(rf_flags & RF_MUST_RESET) {
rf_flags = 0;
/* save state so we know if to switch on again after re-init */
if((REG(RFCORE_XREG_FSMSTAT0) & RFCORE_XREG_FSMSTAT0_FSM_FFCTRL_STATE) == 0) {
rf_flags |= WAS_OFF;
} else {
rf_flags &= ~WAS_OFF;
}
off();
init();
if ((rf_flags & WAS_OFF) != WAS_OFF) {
/* switch back on */
on();
}
}
}