MSP430FR6047: MSP430FR6043 vs MSP430FR6047 for Water Metering

Hi Karthi,

the question is not quite simple; it depends on what else you might want to do on top of the plain flow measurement in your water meter.

Here a quick summary on the available memory

device      'FR6047       'FR6043

RAM         4K+4K           4K+8K

FRAM       256K             64K

The Demo App represents a minimum featured meter application that would run on both devices, but then the extras...

FRAM effort                                                                              KB

Plain Measurement      (depends on features selected)           28-35k

Demo App                    (depends on features selected)           40-55k

+ Storage for consumption,  daily, weekly monthly                  2k code ..4k data

+ communication IF for cable bound value read out                4k code ..1k data

+ radio stack (various radio IFs)                                               50k code  500B data

etc. etc. etc.

To start development use the 'FR6047 it has enough resources... you can decide later if the 'FR6043 is large enough for your needs. The SW for both devices is pretty much the same for water...

Have a good day

     Johann