radio怎么读

解决nrf52832radio配置反复切换，radio不能读标签的问题

切换配置时，radio还在等待读卡的状态，官⽅读取程序如下：

/**@briefFunctionforreadingpacket.

*/

uint32_tread_packet(uint8_t*received,uint32_t*getRssisample)

{

uint32_tresult=0;

NRF_RADIO->EVENTS_READY=0U;

//Enableradioandwaitforready

NRF_RADIO->TASKS_RXEN=1U;

while(NRF_RADIO->EVENTS_READY==0U)

{

//wait

}

NRF_RADIO->EVENTS_END=0U;

//Startlisteningandwaitforaddressreceivedevent

NRF_RADIO->TASKS_START=1U;

//Waitforendofpacketorbuttonsstatechanged

while(NRF_RADIO->EVENTS_END==0U)//会⼀直在这⾥等待接收标签数据

{

if(rfidConfiged==1){

rfidConfiged=0;

break;

}

//wait

}

if(NRF_RADIO->CRCSTATUS==1U)

{

//getRssisample=NRF_RADIO->RSSISAMPLE;

if(rfidMode==1){

memcpy(received,(((char*)packet)+2),10);

}el{

memcpy(received,packet,10);

}

*getRssisample=NRF_RADIO->RSSISAMPLE;

result=1;

}

NRF_RADIO->EVENTS_DISABLED=0U;

//Disableradio

NRF_RADIO->TASKS_DISABLE=1U;

while(NRF_RADIO->EVENTS_DISABLED==0U)

{

//wait

}

returnresult;

}

如果radio仍处于读卡状态，这时切换配置，会卡死在while(NRF_RADIO->EVENTS_END==0U)这个循环⾥，就算有相应配置的标签也

读不到。

解决⽅法：停⽌读卡，切换配置，重新读卡。代码如下：

voidradio_change()

{

NRF_RADIO->EVENTS_DISABLED=0;//停⽌读卡

NRF_RADIO->TASKS_DISABLE=1u;

while(NRF_RADIO->EVENTS_DISABLED==0u){

}

radio_configure();//配置radio

NRF_RADIO->PACKETPTR=(uint32_t)packet;

NRF_RADIO->EVENTS_READY=0U;//重新读卡

//Enableradioandwaitforready

NRF_RADIO->TASKS_RXEN=1U;

while(NRF_RADIO->EVENTS_READY==0U)

{

}

NRF_RADIO->EVENTS_END=0U;

//Startlisteningandwaitforaddressreceivedevent

NRF_RADIO->TASKS_START=1U;

}