ADSP-BF548 EZ-KIT LITE USB INTERFACE

Tanu

on May 8, 2013

In the reference manual of ADSP-BF548 EZ-KIT LITE , I have certain queries in the circuit of USB.

Please refer to Pg 120 of the attached manual.In this it has been mentioned that Pins 1&3 and pins 2&4 of jumper JP11 should always be populated. May I know what is the purpose of this jumper.

By using this jumper , we are supplying power to USB module of DSP , which can directly be given using 3.3V , then what is the need of generating 3.6V

ADSP-BF548_ezkit_man_rev.1.4.pdf

0 ADIApproved

on May 10, 2013 1:09 PM
Hi Tanu,

As this question is specifically about the EZ-KIT Lite, I have moved it from the Blackfin Processors community to the Hardware Tools community. I will ask someone from the Hardware Team to take a look.

Regards,

Craig.
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0 ADIApproved

on May 27, 2013 5:47 AM
Hi,

The jumper is used to differentiate between device mode and OTG mode. When operating in OTG mode footnote 2 under the Absolute Maximum Ratings section in the datasheet (http://www.analog.com/static/imported-files/data_sheets/ADSP-BF542_BF544_BF547_BF548_BF54.pdf

) needs to be followed. The VBUS pin is 5V tolerant only if VDDUSB is applied. There is also further information on page 19-12 in the HRM (http://www.analog.com/static/imported-files/processor_manuals/ADSP-BF54x_hwr_rev1.2.pdf).

Regards,

Colin
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0 EZAdministrator

on Aug 2, 2018 4:52 PM
This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin
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