Kamelzz
Newbie level 3
Hi,
I am trying to build an ethernet to RS485 converter.
On one side I have TX,RX,CTS,RTS(comming out of an already purchased ethernet to TTL module) and on the other side I have the MAX485 chip.
Now, what Im trying to do is figure out how to switch the max485 from receive to transmit mode and viseversa.
I decided to use the RTS pin : so when asserted to 1 by the PC I will also assert the max485 to tx mode and when RTS pin switches back to 0 I will put max485 in RX mode.
and I also connected the RTS to CTS on the ethernet to ttl module side.
Would that work?
Some people did this strategy but left CTS unconnected. but i don't know how this would work since the PC is asserting RTS to 1 and waiting for CTS to start transmitting so if you leave CTS not connected how would it work?
Im desperate people,any help would be great and a schematic would be better
Thanks alot!
I am trying to build an ethernet to RS485 converter.
On one side I have TX,RX,CTS,RTS(comming out of an already purchased ethernet to TTL module) and on the other side I have the MAX485 chip.
Now, what Im trying to do is figure out how to switch the max485 from receive to transmit mode and viseversa.
I decided to use the RTS pin : so when asserted to 1 by the PC I will also assert the max485 to tx mode and when RTS pin switches back to 0 I will put max485 in RX mode.
and I also connected the RTS to CTS on the ethernet to ttl module side.
Would that work?
Some people did this strategy but left CTS unconnected. but i don't know how this would work since the PC is asserting RTS to 1 and waiting for CTS to start transmitting so if you leave CTS not connected how would it work?
Im desperate people,any help would be great and a schematic would be better
Thanks alot!