Configuring Hibernation Mode for DA14531MOD with AT+SLEEP=2

Question

Dear Team, 
 Our Setup: - Module: DA14531MOD - Application: Battery-powered Ultrasonic Flow Meter - IDE & Tools: Keil uVision, SEGGER J-Link (JTAG connector) - SDK Version: DA145xx_CodeLess_6.380.18.63 
 We are interfacing the DA14531MOD with an external MSP430-series host controller using the AT command interface. Typically, we configure the advertisement packet, set the device to advertisement mode, and enable sleep mode using the `AT+SLEEP=1` command. This is reflected in our configuration: // In user_config.h static const sleep_state_t app_default_sleep_mode = ARCH_EXT_SLEEP_ON; 
 For specific scenarios, we need to put the device into hibernation mode for several hours to conserve power. Could you please advise if it&rsquo;s possible to modify the code so that the `AT+SLEEP=2` command triggers hibernation mode? Any guidance or code modifications to achieve this would be greatly appreciated. 
 Thank you!

OV_Renesas · Accepted Answer

Hi Anu, Thank you for the reply. The Hibernation sleep mode is not supported on the CodeLess SDK. You will need to add a lot of files and extra source code in order to achieve Hibernation sleep mode. Due to Memory constraints I do not believe it will be feasible on the DA14531. It might be feasible on the DA14535 which has more SRAM available. You will need to follow the Tutorial JH_Renesas shared and check the prox_reporter example on the generic SDK v6.0.24. 
 You can also take as reference: ble-sdk6-examples/connectivity/hibernation_and_stateaware_hibernation at main &middot; renesas/ble-sdk6-examples From our side, we will not be able to support Hibernation on CodeLess SDK, especially for DA14531. Best Regards, OV_Renesas

JH_Renesas · Answer

Hi Anu, 
 Thank you posting your questions online. 
 1, The hibernation mode wake-up will trigger a POR reset, so it's not a wake-up-ready status for communication. 
 2, the Hibernation wake-up pins are: 
 
 but default cts pin is P0_8 
 
 3, you can modify the AT CMD here: 
 
 create your own CMDs if needed: 6. Adding Custom Commands &mdash; DA145XX Tutorial SDK Getting started 
 BR, 
 JH_Renesas

JH_Renesas · Answer

Hi Anu, 
 Anu said: Could you please provide instructions on how to configure the DA14531MOD to enter hibernation mode? 
 Please refer to this tutorial: 7. Hibernation Mode configuration &mdash; DA1453x & DA1458x Tutorial Sleep Modes 
 Anu said: Additionally, what modifications are needed in the following function to implement this functionality: 
 6. Adding Custom Commands &mdash; DA145XX Tutorial SDK Getting started this tutorial will guide you the creation same as the modification. 
 BR, 
 JH_Renesas

Configuring Hibernation Mode for DA14531MOD with AT+SLEEP=2

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