avr-usb host

dino · Post by **dino** » Sat Mar 24, 2007 1:03 pm

Hi

Is there anyone know how or heard making avr (atmega8535) connect to usb but as a host, i want connect my usb bluetooth dongle to avr so it can send and receive data wirelessly...hopely its work ( if you suggest me to use bluetooth module....i hope its about $10...i have financial problem )

best regard
dino

Christian U. · Post by **Christian U.** » Sat Mar 24, 2007 9:48 pm

no, thres at time only an very small assembler implementation to access usb hid devices as host. i have ported it to c for tests but have not managed it to get this working with other things (i wanted only to read the device descriptors).

i have found somebody who want to write his diplome work on implementing an sw host controller for small devices but its not finished and no word about avr

Post by **christian** » Mon Mar 26, 2007 10:12 pm

USB hosts must support at least Full Speed, that's 12 Mbit. Much too fast for a firmware-only implementation on the AVR.

eshslabs · Post by **eshslabs** » Wed Nov 05, 2008 11:15 am

christian wrote:USB hosts must support at least Full Speed, that's 12 Mbit. Much too fast for a firmware-only implementation on the AVR.

In other words, it is unable to construct "software host for low-speed
devices" ?

Post by **christian** » Wed Nov 05, 2008 12:54 pm

A software host for low speed devices is possible and there are implementations available, see http://instruct1.cit.cornell.edu/course ... index.html