CC2340R5: High consumption while waiting for connect

Ivan Kozhokar

Prodigy 60 points

Part Number: CC2340R5
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hello,

CCS version : 12.7.1

SDK version : 8.10.01.02

Project : basic_ble

sysconf:
Enabled Peripheral + Central roles.

I connect the device to the Central.

During the connection process, I observe additional energy consumption of up to 2.2 mA.

The CC2340 should be in a passive state and only the RF channel should work.

Tell me, should the microcontroller go into sleep state? If so, what should be done for this?

9 months ago

0 David 9 months ago

TI__Genius 15535 points

Hello Ivan,

Thanks for reaching out.

Are you using a custom board or a TI Launchpad for this test? Can you confirm same results if you use DCDC instead of GLDO?

In addition, could you please disable the Display Module: SysConfig -> BLE -> Advanced Settings.

BR,

David.

0 Ivan Kozhokar 9 months ago in reply to David

Prodigy 60 points

Hello David,
thanks for the answer.
We are using a custom device.
We do not have a high frequency quartz connected.

If I select Voltage Regulator DCDC in the settings, I get the following

It's a constant switch to GLDO, so the choice of DСDC cannot be made.

0 Ivan Kozhokar 9 months ago in reply to Ivan Kozhokar

Prodigy 60 points

With Display Module disabled: SysConfig -> BLE -> Advanced Settings the result is the same

0 David 9 months ago in reply to Ivan Kozhokar

TI__Genius 15535 points

Hello Ivan,

From the current values, it would appear that the device is not going to Standby when the LDO is selected as voltage regulator. Do you have a TI Launchpad you can use to flash the sw and see if the same issue reproduces?

BR,

David.

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CC2340R5: High consumption while waiting for connect