CCS/CC2652R: CC2652R:Switch between cc2652 Internal DC/DC Converter and Global LDO on CCS

user6014589

Part Number: CC2652R

Tool/software: Code Composer Studio

hello,

The internal global LDO can be used instead of the DC/DC regulator.I want to know how to config on CCS to switch Internal DC/DC Converter to Global LDO.The configuration in the figure below seems to have no effect.

over 5 years ago

0 TER over 5 years ago

TI__Guru**** 317180 points

If you compile, you will see that these two settings:

// Use the DC/DC during recharge in powerdown
#define SET_CCFG_MODE_CONF_DCDC_RECHARGE 0x0

// Use the DC/DC during active mode
#define SET_CCFG_MODE_CONF_DCDC_ACTIVE 0x0

in ti_devices_config.c

change value if you toggle the "Enable DCDC" button.

You will see an effect of this change on the current consumption.

0 user6014589 over 5 years ago in reply to TER

Prodigy 80 points

Hi Sir,

1. In the simple_peripheral project code, uncheck the "Enable DCDC" option in the syscfg file, and the ti_devices_config.c file will be modified to the following settings:

#define SET_CCFG_MODE_CONF_DCDC_RECHARGE 0x1
#define SET_CCFG_MODE_CONF_DCDC_ACTIVE 0x1

2. Because the simple_peripheral_oad_onchip project code does not generate the ti_devices_config.c file, but directly uses the startup_files/ccfg.c file in the SDK 3.40.
Uncheck the "Enable DCDC" option will not modify the settings in the startup_files/ccfg.c file

Whether we can only manually modify SET_CCFG_MODE_CONF_DCDC_RECHARGE and SET_CCFG_MODE_CONF_DCDC_ACTIVE in the SDK?

Thank you.

0 TER over 5 years ago in reply to user6014589

TI__Guru**** 317180 points

Could you please update to 4.20 of the SDK and test again?

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CCS/CC2652R: CC2652R:Switch between cc2652 Internal DC/DC Converter and Global LDO on CCS