#[CC2541 KEYFOB] Current Consumption Reduction

Hsa S

Other Parts Discussed in Thread: CC2541, ASH

Dear TI, As a newbie, I am working with CC2541 and following Keyfob example for reference. I want to reduce the currrent consumption at its maximum level. What are the waus and how I can implement those methods to reduce the current consumption ? I am getting 2000uA at present which is too high for my application, while set the GPIO optimally. Please suggest some valuable ways to reduce the current consumption at its maximum. Thanks, Regards /Ash

over 11 years ago

0 J Lindh over 11 years ago

TI__Guru 57865 points

Hey Ash,
Have you looked at the power consumption app note AN092?

www.ti.com/.../swra347a.pdf

Best Regards
Joakim

0 Hsa S over 11 years ago in reply to J Lindh

Expert 2570 points

Dear Mr Joakim,Thanks for your reply~
well, I followed that and wanna ask that, as i am using KEyFob example, I didnt find the periodic function [// osal_start_timerEx( simpleBLEPeripheral_TaskID, PERIODIC_EVT, PERIODIC_EVT_PERIOD ); becuase this is mentioned in SimpleBLEPeripheral project.
How Can I use this in Keyfob? Please suggest.Thanks,Regards/Ash

0 J Lindh over 11 years ago in reply to Hsa S

TI__Guru 57865 points

Hi Ash,
You will still need to remove the physical components on the keyfob. Also make sure that the GPIOs are configured correctly. In terms of the code, make sure that no sensor interaction is executed. I suggest you look through the code, starting from main and going through the keyfob init functionality. This way you'll learn the structure as well :)

Best Regards
Joakim

0 Dmitry Cheremisin over 11 years ago

Intellectual 440 points

It's quite a lot, I reduced it to 1 uA in sleep mode, check your pins and caps

0 Hsa S over 11 years ago in reply to J Lindh

Expert 2570 points

Dear Mr Joakim and Mr Dmitri Cheremisin, Thanks for your reply~ I checked the pins and its configuration. All is well, still I am getting very high current during advertisement and connected state. (~2mA). Please suggest some solution~ Thanks, Regards /Ash

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#[CC2541 KEYFOB] Current Consumption Reduction