BLE_HCI_CONNECTION_TIMEOUT in NRF_connect software when MTU_Size is 250

[Vraj Joshi]

When I enter 100 as the size for the ATT MTU all works perfect, but when I choose a larger number like 250 as ATT MTU, sd_ble_enable() does not return an error and I can debug over the code line. But when I try to step over the APP_ERROR_CHECK, it stops at the assembler command "4B01 ldr r3, [pc, #4]".  In NRF_Connect software it shows BLE_HCI_CONNECTION_TIMEOUT.

What should be done to solve this issue?

Thanks & Regards,

Vraj Joshi

[Simonr]

Hi

when I choose a larger number like 250 as ATT MTU, sd_ble_enable() does not return an error and I can debug over the code line.

 Do you mean that it does return an error? What error is this if so, and is it the sd_ble_enable() function that returns this error?

Best regards,

Simon