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doc:crazyradio:usb:index [2012-05-10 22:37]
arnaud 		doc:crazyradio:usb:index [2012-05-11 07:36]
arnaud
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 ====== Usb and Radio protocol of the Crazyradio dongle ====== ====== Usb and Radio protocol of the Crazyradio dongle ======
  
-The Crazyradio dongle is based on a Nordic semiconductor nRF24LU1 chip. The radio communication is done using the Nordic "Enhanced ShockBurst™" packet protocol with acknoledge. Variable size packet, from 1 to 32 bytes, can be send and acknoledged by the copter. The acknoledgement packet can contains a payload from 0 to 32Bytes.+The Crazyradio dongle is based on a Nordic semiconductor nRF24LU1 chip. The radio communication is done using the Nordic "Enhanced ShockBurst™" packet protocol in PTX mode with acknoledge. Variable size packet, from 1 to 32 bytes, can be send and acknoledged by the copter. The acknoledgement packet can contains a payload from 0 to 32Bytes.
  
 This page document the protocol used in the version 0.40 of the Crazyradio dongle. Future version (up to 1.0) will be kept compatible. This page document the protocol used in the version 0.40 of the Crazyradio dongle. Future version (up to 1.0) will be kept compatible.
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 ==== Dongle configuration ==== ==== Dongle configuration ====
  
-Crazyradio vendor requests:+Crazyradio vendor requests summary:
  
 ^ bmRequestType ^ bRequest                 ^ wValue   ^ wIndex ^ wLength ^ data    ^ ^ bmRequestType ^ bRequest                 ^ wValue   ^ wIndex ^ wLength ^ data    ^
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 |          0x40 | LAUNCH_BOOTLOADER (0xFF) | Zero     | Zero   | Zero    | None    | |          0x40 | LAUNCH_BOOTLOADER (0xFF) | Zero     | Zero   | Zero    | None    |
  
 +=== Set radio channel ===
  
 +^ bmRequestType ^ bRequest                 ^ wValue   ^ wIndex ^ wLength ^ data    ^
 +|          0x40 | SET_RADIO_CHANNEL (0x01) | channel  | Zero   | Zero    | None    |
 +
 +The nrf24L chips provides 126 Channels of 1MHz from 2400MHz to 2525MHz. The channel parameter shall be between 0 and 125 (if not the command will be ignored).
 +
 +The radio channel is set as soon as the setup transaction is completed which takes about 1ms. The new frequency is going to be used for the following transfered packets.
 +
 +=== Set radio address ===
 +
 +^ bmRequestType ^ bRequest                 ^ wValue   ^ wIndex ^ wLength ^ data    ^
 +|          0x40 | SET_RADIO_ADDRESS (0x02) | Zero     | Zero   | 5       | Address |
 +
 +=== Set datarate ===
 +
 +^ bmRequestType ^ bRequest                 ^ wValue   ^ wIndex ^ wLength ^ data    ^
 +|          0x40 | SET_DATA_RATE (0x03)     | Datarate | Zero   | Zero    | None    |
  
 Possible values for the datarate: Possible values for the datarate:
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 |     1 | 1MBps          | |     1 | 1MBps          |
 |     2 | 2Mbps (Default)| |     2 | 2Mbps (Default)|
 +
 +
 +=== Set radio power ===
 +
 +=== Configure auto retry (ARD/ARC) ===
 +
 +=== Continuous carrier mode ===
 +
 +=== Launch bootloader ===
 +
 +
 ==== Data transfer ==== ==== Data transfer ====
  
doc/crazyradio/usb/index.txt · Last modified: 2020-05-12 14:12 by kimberly

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