1、只有收或發一種模式，不能共存？待機？休眠？功耗問題？？
2、發送和接收最大字節數怎麼理解？？？？
最大255？？改了大於255後數據就不對了
3、程序
void clock_initialization()
{
/* Start 16 MHz crystal oscillator */
NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
NRF_CLOCK->TASKS_HFCLKSTART = 1;
/* Wait for the external oscillator to start up */
while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0)
{
// Do nothing.
}
/* Start low frequency crystal oscillator for app_timer(used by bsp)*/
NRF_CLOCK->LFCLKSRC = (CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos);
NRF_CLOCK->EVENTS_LFCLKSTARTED = 0;
NRF_CLOCK->TASKS_LFCLKSTART = 1;
while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0)
{
// Do nothing.
}
}
//發送模式：
//發送操作，先更新（NRF_RADIO->PACKETPTR = (uint32_t)&packet; ）packet數組，然後調用send_packet() 。
void send_packet()
{
// send the packet:
NRF_RADIO->EVENTS_READY = 0U;
NRF_RADIO->TASKS_TXEN = 1;
while (NRF_RADIO->EVENTS_READY == 0U)
{
// wait
}
NRF_RADIO->EVENTS_END = 0U;
NRF_RADIO->TASKS_START = 1U;
while (NRF_RADIO->EVENTS_END == 0U)
{
// wait
}
NRF_RADIO->EVENTS_DISABLED = 0U;
// Disable radio
NRF_RADIO->TASKS_DISABLE = 1U;
while (NRF_RADIO->EVENTS_DISABLED == 0U)
{
// wait
}
}
int main(void)
{
clock_initialization();
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, NULL);
// Set radio configuration parameters
radio_configure();
NRF_RADIO->PACKETPTR = (uint32_t)&packet;
while (true)
{
packet[0]=packet1;
packet1++;
for(uint16_t i=1;i<100;i++)
{
packet[i]=i;
}
send_packet();
nrf_delay_ms(10);
}
}
----------------------------------------------------------------------------------------------------------------
//接收模式：
//此模式下處於一直等待狀態，死循環while中。處理函數寫到該函數後面
void read_packet(uint8_t *presult,uint16_t length)
{
NRF_RADIO->EVENTS_READY = 0U;
// Enable radio and wait for ready
NRF_RADIO->TASKS_RXEN = 1U;
while (NRF_RADIO->EVENTS_READY == 0U)
{
// wait
}
NRF_RADIO->EVENTS_END = 0U;
// Start listening and wait for address received event
NRF_RADIO->TASKS_START = 1U;
// Wait for end of packet
while (NRF_RADIO->EVENTS_END == 0U)
{
// wait
}
if (NRF_RADIO->CRCSTATUS == 1U)//CRC is ok
{
for(uint16_t i=0;i<length;i++)
{
presult[i] = (uint8_t)packet[i];
}
}
NRF_RADIO->EVENTS_DISABLED = 0U;
// Disable radio and Wait for close
NRF_RADIO->TASKS_DISABLE = 1U;
while (NRF_RADIO->EVENTS_DISABLED == 0U)
{
// wait
}
}
int main(void)
{
clock_initialization();
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, NULL);
// Set radio configuration parameters
radio_configure();
NRF_RADIO->PACKETPTR = (uint32_t)&packet;
while (true)
{
read_packet(presult,100);
//處理數據函數
}
}