Decrease power consumption in HostTestApp stack example for CC2540

Tiago Marçal

Intellectual 520 points

Other Parts Discussed in Thread: CC2540

Hello.

How can I decrease power consumption using HostTestApp example?

I use HostTestApp example because i need to communicate with a computer using USB.

And i already send it to sleep.

With another example, Keyfob, i just import from HostTestApp to this one, ports configuration and the routines to configure others integrated circuits.

At sleep, the total power consumption was half of the HostTestApp example.

Can you give me some advices to lower power consumption with HostTestApp example ?

Best Regards,

over 9 years ago

0 Willis1 over 9 years ago

TI__Genius 17975 points

If you are using the CC2540 USB interface it is not possible to go into full sleep mode.

0 Tiago Marçal over 9 years ago in reply to Willis1

Intellectual 520 points

Sorry to not mention the following:

USB is not always being in use and when this happens, the device goes to sleep.

Thank you.

0 Tiago Marçal over 9 years ago in reply to Tiago Marçal

Intellectual 520 points

In other words, since almost everything goes off at sleep, only Sleep Timer, external interrupts and Reset are active, which firmware differences between these two examples can justify those differences in power consumption?

Thank you

0 Tiago Marçal over 9 years ago in reply to Tiago Marçal

Intellectual 520 points

No one can explain me these power consumption differences at sleep?

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Decrease power consumption in HostTestApp stack example for CC2540