Not enough memory, c5515

TI Lady

Hi there,

My customer is interested in the C5515 as a follow on to their C5509A design because it is much lower power and has more memory. Just wanted to reconfirm that there are no parts on the immediate horizon with more memory/lower power?

2nd part of the question:

Seems like 320 memory is bigger than what we have but not that much, so we were wondering if we can use parallel flash on the board to store our code and boot from it and use the RAM for everything else ?

This probably will give us more room. Also I would like to know if we can boot from the flash from different addresses, such as we store 2 versions of our code to flash, first one is the main one and second is the back up code and I would like to know if I can boot from different addresses so I can boot version 1 or 2 any time we like.Is that possible?

Thanks in advance.

over 13 years ago

0 Hyun Kim over 13 years ago

TI__Genius 14965 points

Hi,

The internal memory 320KB is maximum of C5515.

Sounds like you want to 2nd stage boot. The first boot code has to be reside fixed location on flash memory. The second or third can be anywhere you want.

Regards,

Hyun

0 TI Lady over 13 years ago in reply to Hyun Kim

Genius 4025 points

Thank you Hyun,

We think that 320K memory might not be enough even if we use external flash, so we probably will have an external SRAM on the new board as well.

I just want to double check for the external parallel SRAM support for the

5515 chip? It should be okay but just checking if 5515 supports it or not.

Also is it ok to have external parallel flash, not serial one?

Thanks!!

Amy

0 Hyun Kim over 13 years ago in reply to TI Lady

TI__Genius 14965 points

Hi,

Yes you can added external SDRAM and flash (NAND or NOR). You can refer C5515 EVM schematics from http://support.spectrumdigital.com/boards/evm5515/revb/.

Regards,

Hyun

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Not enough memory, c5515