RE: minimal nRF24L01 setup problem

MCY — Fri, 13 May 2016 07:09:53 GMT

You were so right, it was a hardware issue! (A bad connection resulting in intermittent problems.) Your suggestion of detecting the carrier was very useful in identifying the problem. Well, this question & answer may still be useful for people (like me) who prefer to write individual registers themselves - yes the register set up works.

Thanks for your response, I appreciate it.

RE: minimal nRF24L01 setup problem

Kenneth — Thu, 12 May 2016 10:55:06 GMT

Hi, if you are using our hal_nrf library the minimum setup should be:

// Configure radio as primary receiver (PRX)
hal_nrf_set_operation_mode(HAL_NRF_PRX);
    
// Set payload width to 3 bytes
hal_nrf_set_rx_payload_width((int)HAL_NRF_PIPE0, 3);
    
// Power up radio
hal_nrf_set_power_mode(HAL_NRF_PWR_UP);

// Add a delay of 1.5ms
    
// Enable receiver
CE_HIGH();

and for primary transmitter (PTX)

// Power up radio   
hal_nrf_set_power_mode(HAL_NRF_PWR_UP);

// Add a delay of 1.5ms
    
// Write payload to radio TX FIFO
hal_nrf_write_tx_payload(payload, 3U);
    
// Toggle radio CE signal to start transmission
CE_PULSE();

However in this case it might be a hardware issue, do you have access to a spectrum analyzer to measure on an carrier or have you bought nRF24L01+ modules from a distributor of us?