Part Number: CC2340R5
Using the simplelink_lowpower_f3_sdk_9_14_00_41, with cc2340R53 as the reflector (key_node) and cc2745 as the initiator (car_node). I set the "Max Number of Connections" value to enable the slave device to support multiple connections. When the Max Number of Connections is 1 and 1 central device connected, the distance transmission callback value can be read. When the Max Number of Connections is 2 and 2 central device connected, the upper computer can only see the message "Waiting for NWP_CS_APP_DISTANCE_RESULTS", but it cannot wait for the returned value.
I found that there is such a piece of code in app_key_node.c of the key_node:
case CS_SECURITY_ENABLE_COMPLETE_EVENT:
{
// Assume reflector
// call default settings
ChannelSounding_setDefaultSettingsCmdParams_t params; // TODO
params.connHandle = 0; //!< Connection handle
params.roleEnable = 3; //!< Role enable flag
params.csSyncAntennaSelection = 1; //!< CS sync antenna selection
params.maxTxPower = 10; //!< Maximum TX power in dBm
ChannelSounding_setDefaultSettings(¶ms);
break;
}
Therefore, I believe that even if multiple connections were established, the channel sounding with the first connected host should at least be normal. However, in reality, the upper computer failed to receive the ranging results.
Therefore, I believe that even if multiple connections were established, the channel sounding with the first connected host should at least be normal. However, in reality, the upper computer failed to receive the ranging results.
To solve this problem, I increased the Heap Size of FreeRTOS and confirmed that the broadcast had stopped during the channel sounding distance measurement. Moreover, when multiple connections were established, all other functions except for the channel sounding were normal.
