Use CY7C65213A to replace FTDI FT232, together with a SP3485 , found in the debugging process with CY7C65213A pin13 and 14to control SP485 DIR, the chip can not achieve this function, check the chip manual, discovered that the default state for the chip is not used to control SP485, manual suggest to manually configure, but we are under Linux debugging to provide development kit, not success.
