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Discussion Groups | TMS320C54x | Flash interfacing
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
Flash interfacing - Leigh W. Wells - Jan 6 17:01:00 2000
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Hi, all. I am using a 'c5410, to which I am trying to hook up an Intel 28f400b3 flash. This is the same flash that is used in TI's document SPRA585 (Connecting TMS320C54x DSP to Flash Memory). I am having a problem communicating with the flash. It is connected as it is in the document, and I am using the code provided in the document to erase/program. The code always jumps to the error loop when verifying if the erase was accomplished. When the status register is checked at this point I get 7f, which pretty much means that everything is wrong. This makes me unsure that I am getting the status register value when I attempt to read it. Does anyone have any experience interfacing to flash memory that could help me out? If anyone has used the code and/or hardware wiring described in SPRA585, I would appreciate hearing about any changes you had to make to get it to work properly. Thank you for your help, Leigh W. Wells Electrical R&D Engineer Acoustic Positioning Research |
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