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problem in RS485 communication

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tapasparua

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rs485 avr communication

if multiple uc (8051) transmitting data to pc how to use a MAX485 network? will there be any chance of data collision?
 

drbizzarow

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rs485 communication problems

no it will never ..... if u design right protocol in software.
 

arnab.bhaumik

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rs485 communication problem

hi ,

you have to make one server and multiple client. and the server should initiate all the communication. circuit is very simple. but you have to write the correct firmwire....................

arnab/vu2bpw
 

JohanKrava

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1. Design protocol with some checksum. Always check received packets for valid checksum.
2. If possible have only one master.
3. You can also try to use 9-bit UART mode for quick addressing.




avrmicrocontrollers.com - AVR Microcontrollers
 

bohumilfulin

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Yake care for switch time from transmitter to receiver mode on booth sides. It would by tricky.

b
 

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