Can I replace the 1 Mb flash by a 4 Mb or a 8 Mb ?

[dualvsta]

Hello !

On the PIC-WEV board rev C, we have an Atmel AT45DB01.
But if we need more than 1Mb is it possible to replace with a 4 or 8 Mb like an AT45DB08 ?

Something need to be change in the hardware configuration ?

Thank you for your help

[LubOlimex]

Hey Dualvsta,

On the PIC-WEV board rev C, we have an Atmel AT45DB01. But if we need more than 1Mb is it possible to replace with a 4 or 8 Mb like an AT45DB08 ? Something need to be change in the hardware configuration ?

You can replace the memory as long as it is pin-to-pin compatible. That means it has to be with the same number of pins and connected the same way. For instance if pin 1 (SDO on the AT45DB011) is... let say SCK on the new memory of course it won't work. Unless you edit "HWP OLIMEX_PIC-WEB.h" the "EEPROM" section (which as I already said is actually flash) and configure the pins and SPI peripheral.

You can't use AT45DB08 since it has more pins than AT45DB01.

Regards,
Stanimir/OLIMEX
Lub/OLIMEX

[dualvsta]

Hi,

Thank you for your explanations.
I obviously checked that the component was pin compatible and it is as you can see on the datasheet :
http://www.farnell.com/datasheets/97337.pdf

I wanted to know if the amount of additional memory will be taken into account by the TCPIP stack or if there was something to set for that.

Thank you again