Posted on May 17, 2011 at 12:05Hi, We are using uPSD3254 in our design. We have a warm reset problem. At power on the initialization seems to work properly but supplying a warm reset the uPSD does not seem to go through the initialization sequence. ...
Posted on May 17, 2011 at 12:04If I map secondary flash of uPSD 3254 in code space from 0000 to 7FFF, and 8 pages of primary flash in 8000 to FFFF of code space, When I execute code cann you treat the code in secondary and primary flash as a contigu...
Posted on May 17, 2011 at 12:03I think I have a better understanding of memory mapping within uPSD3254. 1. Map lower codespace(0000 to 7FFF) to secondary flash 2. Map Main 256K Fllash to 8000 to FFFF code space with page select bits 3. Map lower 32k...
Posted on May 17, 2011 at 12:03Thank you phaze426. I thoughjt about decoding 4 bits of page register to create 16 pages (8 for external flash(256K) and 2 for external FPGA sram(64K). This won't work if I want to run from primary flash in code space ...
Posted on May 17, 2011 at 12:03Thank you phaze426. I think I understand what you are saying. 1. If I take 4 bits of page rgister bits I can create 16 pages and that can create exclusive chip selects for every combination of flash and external SRAM i...
