Hi,
I'm making system design for device which is powered with battery, and it is important to have seven days autonomy.
My device have to read data from SPI interface with sample frequency of 500Hz and store it in flash memory. Originally I planed to use some low power microcontroller from MSP430 series. Amount of data to be stored in memory over seven days will be almost 1.8GB and I want to use on board flash (NAND or NOR or eMMC) memory (not SD/MMC card) . Because I din't find MSP430 uC with native flash memory port or eMMC port I decide to use some of ARM9 AM180x application processor. Only problem is that I'm not sure does this device can operate over seven days on battery supply (2500mAh battery).
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Did somebody used this series of processor for making similar device?
The program is not complicated and I think that one microcontroller will be more than enough to do everything. Does TI have some low power uC with large amount flash memory support which can replace microprocessor?
Thanks for your answers.
Regards Miroslav.