Tool/software:
Good Morning,
I have a power consumption problem with my project, I observe the same problem with my project and the example project basic_ble_LP_EM_CC2340R5_freertos_ticlang.
I read in the TI documentation that there were current peaks in standby to recharge the VDDR capacity. These peaks should be 70 nA maximum.
However, on our board with custom project and on the demo board with basic_ble_LP_EM_CC2340R5_freertos_ticlang, we observe peaks of 40 mA.
We use simplelink_lowpower_f3_sdk_8_10_01_02
CC2340R5 Develpment kit
To reproduce these peaks,import basic_ble_LP_EM_CC2340R5_freertos_ticlang and all you have to do is increase the advertising to switch to standby. In my case, I chose a very large number, 100,000, to be sure of observing the peaks and set LF RCOSC for Low Frequency Clock Source
Image here with a 10 ohm resistor in series with the power supply (20 mV drop in voltage, i.e. 2mA consumption).
The same thing can be observed with measuring devices dedicated to consumption.
Our goal is to suppress these peaks or reduce them to 70 nA as specified in the doc.
How can we do that ?
Regards
Yohan
