TMS320F28335: 28335 external space

nirvana_xun

can i run a program in the xintf zone6 of 28335, i try to move the flash function in this place, can this make a problem?

i just wanna save some ram space for algorithm program.

over 3 years ago

0 MatthewPate over 3 years ago

TI__Guru* 85370 points

Nirvana,

I'm assuming you have some external SDRAM connected to the XINTF, copying to this region vs internal SRAM is possible. You would need to check the performance you will get across this bus vs the flash; that will determine if it makes sense to run from this bus vs the flash with waitstates.

Best,

Matthew

0 nirvana_xun over 3 years ago in reply to MatthewPate

Intellectual 535 points

i connected a sram at xintf6, i need to run a bootloader in external ram, but when running flash erasing function in external ram, the program did not return success, is there a problem?

0 nirvana_xun over 3 years ago in reply to MatthewPate

Intellectual 535 points

when i run the flash erase program in external SRAM, the program just died there, did not return

0 nirvana_xun over 3 years ago in reply to MatthewPate

Intellectual 535 points

it seems i could not run a flash program algorithm in external SRAM

+1 MatthewPate over 3 years ago in reply to nirvana_xun

TI__Guru* 85370 points

Nirvana,

This is correct, due to the timings involved when erasing/programming the flash those will always need to be ran from 0WS SRAM on the device. I understand your original question now; from above looks like you have resolved it.

Best,

Matthew

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TMS320F28335: 28335 external space