Bluetooth PDU data format for advertising packet

ble_pdu_packet

#http://interactive.blockdiag.com/packetdiag/
packetdiag {
  colwidth = 32
  node_height = 80
  scale_direction = ltr # right_to_left;  # left_to_right, ltr, right_to_left or rtl 
  scale_interval = 8  # draw scale labels each 4 bytes 
  0-15: Header\n\n(16 bits)
  16-31: Payload\n\n(variable, per length field in header) [colheight = 2]
  * PDU Type [rotate = 270, len=4]
  * RFU [rotate = 270, len = 2] #this format also works
  * TxAdd [rotate = 270, len = 1]
  * RxAdd [rotate = 270, len = 1]
  * Length [rotate = 270, len = 6]
  * RFU [rotate = 270, len = 2]
}