256KB FX3 Renumeration Issues

	Lane posted on 13 Apr 2013 9:46 AM PST Member 7 Forum Posts

We have done our initial FX3 firmware development on the FX3 dev board and have our custom firmware works fine on the dev board. We can load it over USB and it will renumerate correctly.

We recently got back our custom designed hardware, and it uses the 256KB FX3. When we try load the same custom firmware over USB, however, it will not renumerate. The same firmware renumerates fine on the dev board.

Could this be related to the RAM size differences? Do we need to adjust parameters somewhere to set memory locations/bounds correctly? I can't find any documentation stating how to deal with the 256KB part.

Thanks,

Lane

Re: 256KB FX3 Renumeration Issues

	NIKL posted on 13 Apr 2013 11:40 AM PST Cypress Employee 148 Forum Posts

Yes. It is beacause of RAM difference.

As of now there is no document explaining the changes required in firmware for 256K RAM FX3 chip. But we are working on it. It will soon be made available.

Please create a tech support case. One of our engineers will guide you through the required changes in the linker script for 256KB RAM part.

Thanks

Nikhil

ALL CONTENT AND MATERIALS ON THIS SITE ARE PROVIDED "AS IS". CYPRESS SEMICONDUCTOR AND ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY OF THESE MATERIALS FOR ANY PURPOSE AND DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THESE MATERIALS, INCLUDING BUT NOT LIMITED TO, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHT. NO LICENSE, EITHER EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, IS GRANTED BY CYPRESS SEMICONDUCTOR. USE OF THE INFORMATION ON THIS SITE MAY REQUIRE A LICENSE FROM A THIRD PARTY, OR A LICENSE FROM CYPRESS SEMICONDUCTOR.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms and Conditions of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms and Conditions of this site. Cypress Semiconductor and its suppliers reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

Cypress Perform

256KB FX3 Renumeration Issues

Re: 256KB FX3 Renumeration Issues