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Discussion Groups | TMS320C54x | How can flip between eprom and flash?
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).
How can flip between eprom and flash? - dan - Feb 23 6:57:00 2001
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Dear: I am using the 5402 to develop my system. I want to boot from the flash,and copy code form flash to external sram,but i could not solve a problem. If we boot system from flash,then we should use the /ds pin to selcet the flash because the code was boot from the external data space,but if i map the flash into 4000-bfff(32k), and the sram also map into 4000-bfff,then i will acess the both flsh,sram at the same time. (/ds is active at the same time). If anyone can tell me how can i select the sram ,flash .It will have no confict when I access the external data space! i connected the sram like this,if any wrong,please tell me ,thank you! dsp sram /mstrb /ce r//w /we Gnd /oe Thanks & regards! dan |
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Re: - Daniel Neri - Mar 14 16:55:00 2001
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"Julien Boudias" <> writes: > What can I do to put some fast C functions into .fast_text and the > other into .text "TMS320C54x Optimizing C Compiler User's Guide" (SPRU103C), section 5.7.1: ,---- | | #pragma CODE_SECTION(foo, ".fast_text"); | int foo(int arg) | { | /* ... */ | } | `---- Regards, --Daniel -- Daniel Neri mailto: Sigicom AB, Sweden http://www.sigicom.com |
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