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doc:crazyradio:usb:index [2012-04-02 09:07]
arnaud [Dongle configuration] 		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 0.33 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.
  
 ===== USB protocol ===== ===== USB protocol =====
  
-The USB devices have the VID/PID couple 0x1915/0x7777. Two bulk endpoint are configured:+The USB devices have the VID/PID couple 0x1915/0x7777.
  
 | EP0 | Control | Control endpoint. Used to configure the dongle | | EP0 | Control | Control endpoint. Used to configure the dongle |
-| EP1 | Bulk    | Data endpoint. Used to send and receive radio packets |+| EP1IN/OUT | Bulk    | Data endpoints. Used to send and receive radio packets |
  
 ==== Dongle configuration ==== ==== Dongle configuration ====
  
-The following vendor control messages are implemented in the radio dongle:+Crazyradio vendor requests summary:
  
-^ Control message   ^ Value ^ Type ^ Data ^ +^ bmRequestType ^ bRequest                 ^ wValue   ^ wIndex ^ wLength ^ data    ^ 
-| SET_RADIO_CHANNEL | 0x01  | SET  | One 8bit integer representing the radio channel to set from 0 to 125 | +|          0x40 | SET_RADIO_CHANNEL (0x01) | channel  | Zero   | Zero    | None    | 
-| SET_RADIO_ADDRESS | 0x02  |   -  | **Not implemented** | +|          0x40 | SET_RADIO_ADDRESS (0x02) | Zero     | Zero   | 5       | Address | 
-| SET_DATA_RATE     | 0x03  | SET  | One 8bit integer setting the radio data-rate. See bellow for possible values | +|          0x40 | SET_DATA_RATE (0x03)     | Datarate | Zero   | Zero    | None    | 
-| LAUNCH_BOOTLOADER | 0xFF  |  -   | Resets the dongle in nRF24LU1 bootloader mode. The dongle has to be disconnected and reconnected in order to restart in crazyradio mode |+|          0x40 | SET_RADIO_POWER (0x04)   | Power    | Zero   | Zero    | None    | 
 +|          0x40 | SET_RADIO_ARD (0x05)     | ARD      | Zero   | Zero    | None    | 
 +|          0x40 | SET_RADIO_ARC (0x06)     | ARC      | Zero   | Zero    | None    | 
 +|          0x40 | SET_CONT_CARRIER (0x20)  | Active   | 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 ====
  
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 This protocol permits to transfer about 500 packets per seconds. This protocol permits to transfer about 500 packets per seconds.
 ===== Radio protocol ===== ===== Radio protocol =====
- 
  
  
  
doc/crazyradio/usb/index.txt · Last modified: 2020-05-12 14:12 by kimberly

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