Hello Team,
My customer has this transceiver SN65HVD10D. We see in various evaluation kits, designs here and there, and forums pull-up resistors on the A pin and pull-downs on the B pin.
Could you please let me know if and why this is needed? I get conflicting information that it is needed and that it can also cause damage to the transceivers.
the image I sent below would be the "master" RS485 driver, there is a slave one connected to the master.
FPGA <-> Master SN65HVD10D <->Bus of 3meters <->SN65HVD10D <->Slave FPGA
Regards,
Renan