US Blaster AVR-280 Manual do Utilizador

AVR280: USB Host CDC Demonstration1. IntroductionThe RS232 interface has disappeared from the new generation of PCs replaced by the USB interface. To

107727A–USB–09/07AVR280 Application Note Table 3-2. GET_ENCAPSULATED_RESPONSE request3.3.1.2 Communication parameters requestsThese requests may be u

117727A–USB–09/07 AVR280 Application NoteCode 3-5. Notification pipe handler template4. Example4.1 OverviewAll this theory may appear complex, so her

127727A–USB–09/07AVR280 Application Note Device CDC package can be run on STK525, USBKEY (AT90USB64x/128x) or STK526 (AT90USB82/162).The USB Device b

137727A–USB–09/07 AVR280 Application Notethe port must be correctly entered. Using our package unmodified, you must set the following configuration :

Printed on recycled paper.7727A–USB–09/07©2007 Atmel Corporation. All rights reserved. Atmel®, logo and combinations thereof, are registered tradem

27727A–USB–09/07AVR280 Application Note 2. Theory of Operation2.1 CDC Configuration2.1.0.1 USBThe CDC class configuration includes two interfaces :•

37727A–USB–09/07 AVR280 Application NoteThis is the simplest use case of an UART-to-USB bridge. In such a configuration, once the device has been enu

47727A–USB–09/07AVR280 Application Note – RESPONSE_AVAILABLE : the device informs the host that a response is available. Host will need to send a GET

57727A–USB–09/07 AVR280 Application Note3.1 EnumerationWhen a device connects to the host, enumeration starts. If the device interface is accepted by

67727A–USB–09/07AVR280 Application Note Code 3-1. CDC device connection detection3.2 Data TransferData transfer is very easy to implement.3.2.1 Recei

77727A–USB–09/07 AVR280 Application Note– the array cdc_stream_in_array[CDC_STREAM_IN_SIZE ] is filled in by firmware with incoming data– the variabl

87727A–USB–09/07AVR280 Application Note 3.2.2 Sending dataThe principe of operation is very similar to the data reception stage. Data to be transmitt

97727A–USB–09/07 AVR280 Application NoteCode 3-4. Additionnal functions3.3 Communication Management3.3.1 Management elementThrough the endpoint 0 are