nrf51822 Central disconnection problem

[Aymen Rejeb]

Hi all,

Using nRF51422 on nRF51-DK as a Central I have been successfully connected to a non-Nordic BLE peripheral, however when using the ISP130301 chip that embedding an nRF51822_CEAA (256 Ko/ 16 Ko) the Central is being disconnected with the 0x8 (BLE_HCI_CONNECTION_TIMEOUT) or 0x3E (BLE_HCI_CONN_FAILED_TO_BE_ESTABLISHED) disconnection reasons.

Could anyone please give a hint here! what could be the reason of the disconnection?

This is the Wireshark trace file: trace.pcapng

nRF51822 Revision:

Debugging the disconnection:

ble_app_uart_c trace: trace_27_07_16.pcapng

ISP schematic:

ISP picture

[Aymen Rejeb]

Hi Petter,

I was trying both clock configurations that you suggested, I also tried all the other clock options but the central still disconnecting! Please note that the ISP130301 module is working perfectly as a peripheral! do you have any other suggestions that we should try?