Hi,
I'm trying to use a CYBLE-013025 in "retained command mode", that is keeping the CYSPP pin driven high and the CYSPP "enable" value to "enabled", so that no transparent mode is used.
In this condition, API commands, replies and events are visible and I can succesfully receive data from the central remote on the "Acknowledged Data Characteristic" (gatts_data_written event). Instead, I can't find a way to indicate data to the remote using the same characteristic.
When I try to indicate (/IH,C=0,H=0E,D=AB), I get a 0x108 error (operation not permitted). Of course, the remote central has subscribed to indications. Indeed, if I assert CYSPP low and try to indicate with the same command, I can see the indication packet that gets indicated on the remote.
So, my question is: how can I retain the command mode and indicate to a remote? Is this possible? If not, should I write my own custom GATT?
Thank you very much.
Alberto
