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Original question:

CC2340R5: The sample code Power does not go into Standby mode.

CC2340R5: Help with Standby Power Policy on CC2340R5 in Proprietary Mode.

dharmendra kumar
Prodigy 80 points
Part Number: CC2340R5

Tool/software:

Hi,

I’m using the CC2340R5 as a transmitter, operating in the 2.4 GHz band in Proprietary mode with 250 kbps data rate and MSK modulation.

I want to implement a standby power policy to save power during the intervals between transmissions, as the device is powered by a coin cell battery.

The idea is for the MCU to enter standby mode after each transmission, and then wake up either on a timer or external interrupt for the next transmission.

I have selected standby mode because I want to retain RAM contents and basic configurations like RF settings, I2C setup,

and other peripheral configurations — so that I don't need to reconfigure them every time the device wakes up.

I am using the NoRTOS rfPacketTx example for the transmitter and writing code in CCS Theia.

I tried using the Watchdog example, but it's not working as expected — the current consumption remains at around 0.77 mA even in sleep mode.

Could you please help me achieve proper standby operation with minimal power consumption? Any example code or guidance would be greatly appreciated.

Thanks in advance!