Dear Sir,
We have 4 Nordic devices connected to 1 central. At every 195 to 182 seconds 1 packet is sent from device.
I tried changing the following parameters just to understand criteria and got the error NRF_ERROR_INVALID_PARAM from sd_ble_gap_ppcp_set().
- MIN_CONN_INTERVAL 500
- MAX_CONN_INTERVAL 1000
- SLAVE_LATENCY 199
- CONN_SUP_TIMEOUT (400*1000)
From this post connection interval error
found out Supervision_Timeout > { (1 + Conn_Latency) * Conn_Interval_Max * 2} , where Conn_Interval_Max is given in milliseconds.
{(1+199) *1000 *2} = (400*1000).
Can you help us in getting the desired connection intervals?
Regards,
Lakshmi