title: arduino nano + nrf2401 CRC_lenght=disable
body: <p>i have bought a arduino nano with a nrf2401 but the CRC_lenght is disable when i use the nf24/exemple/scanne </p>
  
  <pre><code>this is what i get
  STATUS       = 0x00 RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=0 TX_FULL=0
  RX_ADDR_P0-1     = 0x0000000000 0x0000000000
  RX_ADDR_P2-5     = 0x00 0x00 0x00 0x00
  TX_ADDR      = 0x0000000000
  RX_PW_P0-6   = 0x00 0x00 0x00 0x00 0x00 0x00
  EN_AA        = 0x00
  EN_RXADDR    = 0x00
  RF_CH        = 0x00
  RF_SETUP     = 0x00
  CONFIG       = 0x00
  DYNPD/FEATURE    = 0x00 0x00
  Data Rate    = 1MBPS
  Model        = nRF24L01
  CRC Length   = Disabled
  PA Power     = PA_MIN
  000000000000000011111111111111112222222222222222333333333333333344444444444444445555555555555555666666666666666677777777777777
  0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd
  000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  </code></pre>
  
  <p>and i found on the web that normally it need to be like this</p>
  
  <pre><code>STATUS       = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0
  RX_ADDR_P0-1     = 0xe7e7e7e7e7 0xc2c2c2c2c2
  RX_ADDR_P2-5     = 0xc3 0xc4 0xc5 0xc6
  TX_ADDR      = 0xe7e7e7e7e7
  RX_PW_P0-6   = 0x00 0x00 0x00 0x00 0x00 0x00
  EN_AA        = 0x3f
  EN_RXADDR    = 0x03
  RF_CH        = 0x4c
  RF_SETUP     = 0x07
  CONFIG       = 0x0c
  DYNPD/FEATURE    = 0x00 0x00
  Data Rate    = 1MBPS
  Model        = nRF24L01+
  CRC Length   = 16 bits
  PA Power     = PA_HIGH
  </code></pre>
  
  <p>why is the CRC Length and other things are not the same other things can be because of the brand but the most weird thing is hy CRC Length is disable instead off 16 bits</p>
  
  <p>this is the cable settings</p>
  
  <p>CE=pin7</p>
  
  <p>CSN=pin8</p>
  
  <p>SCK=pin13</p>
  
  <p>MO=pin11</p>
  
  <p>MI=pin12</p>
  
  <p>of corse i have change this line RF24 radio(7,8); with the CE and CSN pin</p>