hiwin_driver.c: clean-up code for absolute encoder
hiwin_driver.c: clean-up code for absolute encoder

araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit,araisrobo/machinekit