sprintf increases by 2-3uA per parameter as the parameters increase. huge current.

RE: sprintf increases by 2-3uA per parameter as the parameters increase. huge current.

Turbo J — Fri, 07 May 2021 13:19:50 GMT

No, but the NRF core consumes about 5-10mA during execution.

Your 2-3µA increased average (my guess here) might actually be the additional CPU time required to generate and/or handle the string result.

RE: sprintf increases by 2-3uA per parameter as the parameters increase. huge current.

Alex — Fri, 07 May 2021 11:48:34 GMT

My variable argument is interger.The current is also 2-3uA.

Is there other situation?

RE: sprintf increases by 2-3uA per parameter as the parameters increase. huge current.

Turbo J — Fri, 07 May 2021 10:22:23 GMT

Are those parameters of float type? There is an exception for float values in variable argument functions (like all printf variants): Floats are automatically converted to doube type. This conversion (and the corresponding calculations inside sprintf) are a little more expensive than to simply copy a value onto the stack.