Hello,
i am currently working at a project which includes radio transmission based on th hal_nrf library. I am using parts of an example code, which worked fine for me till now. My problem is that the transmission itselfs blocks quite some time, which i basically dont have. :-)
Here is my Code of the radio transmission part:
//********** Send Over Radio *************
void radio()
{
zaehler_t1 = 0;
// Write payload to radio TX FIFO
hal_nrf_write_tx_payload(radio_load, 3U);
// Toggle radio CE signal to start transmission
CE_PULSE();
radio_busy = true;
// Wait for radio operation to finish
while (radio_busy)
{
}
}
//********** Radio interrupt *************
NRF_ISR()
{
uint8_t irq_flags;
// Read and clear IRQ flags from radio
irq_flags = hal_nrf_get_clear_irq_flags();
switch(irq_flags)
{
// Transmission success
case (1 << (uint8_t)HAL_NRF_TX_DS):
radio_busy = false;
// Data has been sent
break;
// Transmission failed (maximum re-transmits)
case (1 << (uint8_t)HAL_NRF_MAX_RT):
// When a MAX_RT interrupt occurs the TX payload will not be removed from the TX FIFO.
// If the packet is to be discarded this must be done manually by flushing the TX FIFO.
// Alternatively, CE_PULSE() can be called re-starting transmission of the payload.
// (Will only be possible after the radio irq flags are cleared)
hal_nrf_flush_tx();
radio_busy = false;
break;
default:
break;
}
Of course i enabled the radio clock and the radio interrupt before and powered it up. The main problem is the part:
while (radio_busy)
{
}
Is someone familiar with the hal_nrf library and knows if i really need to wait till the radio is not busy any more?
And my second question is. Does someone know which timers or rtc, of the nrf24le1, the hal_nrf library uses?
