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CC2340R5-Q1: CC2340R5-Q1 - Standby High Current

Andrew Burgess
Prodigy 30 points
Part Number: CC2340R5-Q1
Other Parts Discussed in Thread: LP-EM-CC2340R5, SYSCONFIG

Hi,

While working with the CC2340R5-Q1 we have not been able to achieve the standby currents described in the datasheet. However if we try the same code on the LP-EM-CC2340R5 it does appear to be entering sleep mode properly. The dev kit uses the CC2340R5RKP device whereas we are using the CC2340R5RHB device. When taking the example code "empty" and disabling the LED is there any extra steps required in the sysconfig to enable the CC2340R5RHB device to go into sleep mode?

Here is the current profile for the dev kit running example code:

And here is the current for our device running the same code:

  • 0
    TI__Intellectual 810 points

    Hi,

    May I ask if it would be possible to provide your schematic diagram? This is so we could also check the hardware design. We should also check also if the IOs are being properly terminated.

    Another thing is, may I ask if you are using an external or internal clock for LF, and if this is being properly configured at the sysconfig page?

    Thank you so much!

    Best Regards,

    Cash

  • 0 in reply to Cashmere Ramos
    Prodigy 30 points

    Hi Cash,

    Thank you for your feedback. We have just realised and as you have mentioned we are using internal clock for LF and it was not being properly configured on the sysconfig page. After setting the Low Frequency Clock Source to LF RCOSC, the sleep current is now in line with what it should be according to the datasheet. 

    Thanks

    Regards

    Andrew