ID:18510 PIPE master channel < <name> > cannot be placed at the HIP channel location < <name> > due to timing requirement. Either change the master channel to a different index to avoid HIP channel locations, or change master channel location to avoid HIP channel locations, or change speed grade to 1.
CAUSE: PIPE's master channel has special timing requirement, and cannot be placed on HIP channel locations.
ACTION: Modify the location constraint of master channel in the Assignment Editor, or change master channel index in Qsys, or change spped grade to 1.