Did not get "Constant carrier wave output for testing" working on nRF24L01+

Question

Hello, 
 Like in the description, I dont get this to work. Im trying to get The nRF24L01+ connected to a PIC16LF18345. I did Some Pictures of the SPI logic and Here is a Part of the Code Ive written of the configuration for carrier Signal like described in the datasheet. 
 
 while(1)
 {
 if(PORTCbits.RC4 == 0) //Startswitch
 {
 __delay_ms (2500);
 
 spi_start();
 spi_rx(0b00100000); //W + Reg CONFIG
 spi_rx(0x02); //PWR UP
 spi_stop();
 
 __delay_us(1700);
 
 spi_start();
 spi_rx(0b00100110); //W + Reg RF_SETUP
 spi_rx(0b10010110); 
 spi_stop();

 spi_start();
 spi_rx(0b00100101); //W + Reg RF_CH
 spi_rx(0x22); 
 spi_stop();

 while(1){
 PORTCbits.RC7 = 1; //CE
 }
 }
 } 
 
 I have tried almost everything and so now im here and ask for help :)

Håkon Alseth · Accepted Answer

Hi, 
 
 It looks like the device is responding with 0x21 in the first transaction, which is the STATUS register that is shifted out on the MISO pin. This indicates that the TX FIFO is full, and MAX_RT is set. 
 In the second transaction, it looks like data is echoed at MISO/MOSI. 
 The datasheet states: 
 The content of the status register is always read to MISO after a high to low transition on CSN. 
 
 This does not seem to be the case in your logic trace. I would recommend that you check your wired connections. 
 
 Best regards, 
 Håkon

Did not get "Constant carrier wave output for testing" working on nRF24L01+

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