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CC2642R-Q1: Cannot enable advertising after max connection number is reached

Shuyang Zhong
Expert 4870 points
Part Number: CC2642R-Q1

Tool/software:

I need to enable advertising after connecting to 4 phones, the max number of connections is set to 4. To enable the advertising, I modified the code under GAP_LINK_ESTABLISHED_EVENT to call GapAdv_enable again after the max connection number is reached:

However, GapAdv_enable returns 0x18(bleInvalidRange) after connecting to 4 devices. The advertisement is not enabled.

I changed the max number of connections to 2 to make it easier to be reproduced, the issue happened as well after 2 connections:

Is it allowed to enable the advertisement after reaching the max connection number? If yes, why does GapAdv_enable returns 0x18(bleInvalidRange)?

Best regards,

Shuyang