/**
* \brief Init the radio
* \return Returns success/fail
* \retval 0 Success
*/
static int
rf212_init(void)
{
volatile uint8_t regtemp;
uint8_t radio_state; /* don't optimize this away, it's important */
//uint8_t temp;
PRINTF("RF212: init.\n");
/* init SPI and GPIOs, wake up from sleep/power up. */
//rf212_arch_init();
trx_spi_init();
/* reset will put us into TRX_OFF state */
/* reset the radio core */
port_pin_set_output_level(AT86RFX_RST_PIN, false);
delay_cycles_ms(1);
port_pin_set_output_level(AT86RFX_RST_PIN, true);
port_pin_set_output_level(AT86RFX_SLP_PIN, false); /*wakeup from sleep*/
/* before enabling interrupts, make sure we have cleared IRQ status */
regtemp = trx_reg_read(RF212_REG_IRQ_STATUS);
printf("After wake from sleep\n");
radio_state = rf212_status();
printf("After arch read reg: state 0x%04x\n", radio_state);
/* Assign regtemp to regtemp to avoid compiler warnings */
regtemp = regtemp;
if(radio_state == STATE_P_ON) {
trx_reg_write(RF212_REG_TRX_STATE, TRXCMD_TRX_OFF);
}
trx_irq_init((FUNC_PTR)rf212_interrupt_poll);
ENABLE_TRX_IRQ();
system_interrupt_enable_global();
/* Configure the radio using the default values except these. */
trx_reg_write(RF212_REG_TRX_CTRL_1, RF212_REG_TRX_CTRL_1_CONF);
trx_reg_write(RF212_REG_PHY_CC_CCA, RF212_REG_PHY_CC_CCA_CONF);
trx_reg_write(RF212_REG_PHY_TX_PWR_CONF, RF212_REG_PHY_TX_PWR_CONF);
//temp = rf212_arch_read_reg(RF212_REG_TRX_CTRL_2);
trx_reg_write(RF212_REG_TRX_CTRL_2, RF212_REG_TRX_CTRL_2_CONF);
trx_reg_write(RF212_REG_IRQ_MASK, RF212_REG_IRQ_MASK_CONF);
#if HW_CSMA_FRAME_RETRIES
trx_bit_write(SR_MAX_FRAME_RETRIES, 3);
trx_bit_write(SR_MAX_CSMA_RETRIES, 4);
#else
trx_bit_write(SR_MAX_FRAME_RETRIES, 0);
trx_bit_write(SR_MAX_CSMA_RETRIES, 7);
#endif
SetPanId(IEEE802154_CONF_PANID);
rf_generate_random_seed();
/* start the radio process */
process_start(&rf212_radio_process, NULL);
return 0;
}
retval_t pal_init(void)
{
#if (PAL_USE_SPI_TRX == 1)
trx_spi_init();
#endif /* #if (PAL_USE_SPI_TRX = 1) */
#ifdef ENABLE_STACK_NVM
#if (SAMD20) || (SAMD21) || (SAMR21)
nvm_init(INT_FLASH);
#endif
#endif
return MAC_SUCCESS;
}
