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fix port event bug (EPROT-6) #130

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fix port event bug (EPROT-6) #130

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1 change: 1 addition & 0 deletions modbus/mb_ports/common/port_event.c
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Original file line number Diff line number Diff line change
Expand Up @@ -178,6 +178,7 @@ mb_err_enum_t mb_port_event_wait_req_finish(mb_port_base_t *inst)
"incorrect object handle.");
mb_err_enum_t err_status = MB_ENOERR;
mb_event_enum_t rcv_event;
xEventGroupClearBits(inst->event_obj->event_group_hdl, MB_EVENT_REQ_MASK);
EventBits_t bits = xEventGroupWaitBits(inst->event_obj->event_group_hdl, // The event group being tested.
MB_EVENT_REQ_MASK, // The bits within the event group to wait for.
pdTRUE, // Masked bits should be cleared before returning.
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