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STP isn't determined by trunk ports vs. single VLAN switch ports.
Normally, for switches which have STP active, BPDUs are transmitted on all switch's "switchports".
Switchport ports that are going to be used strictly as an edge port (i.e. no possible L2 loop) can disable STP on that port (risky), or perhaps define the port as a STP "edge" port (recommended). The latter, for example, using Cisco's rapid-pvst is performed by setting "portfast". This will skip initial STP listening/learning/blocking, suppress sending BPDUs and stop generating TCNs with link status change. Usually this is only done with access-mode ports, but it can be done to trunk ports too. Note such a port, if it receives a BPDU, will drop out of "edge" mode, i.e. STP hasn't been totally inactivated.
