7 Threads found on edaboard.com: rs485 Programming
Hi you guys!
I'm working with rs485 network.I use max485 as control chip.I had a program to control.But they only well done without max485, and everything become worse when I add max485 into my network :(( anyone could help me?
this is my code and schematic by proteus:55191
Microcontrollers :: 04-11-2011 00:30 :: potato89 :: Replies: 1 :: Views: 856
i am using datamate 3000 for my is an small room air-condition monitoring device.. for my project i need to get the parameter details from datamate 3000 using rs485.. and then transmit the data using another rs485 to host.. i need some programming help... how to start with datamate 3000...
PC Programming and Interfacing :: 05-29-2012 21:02 :: praba_J :: Replies: 1 :: Views: 565
i have a circuit on Pcb, for rs 485 and am using avr atmega8, now when i make the power on and conncet the rs485 to pc using rs485-rs232 converter using hyper terminal i get this error "cannot open COM Port3 check port settings"
now when the power is removed this msg is not displayed, moreover if just avr is removed fro
Microcontrollers :: 09-28-2010 08:28 :: sherazi :: Replies: 21 :: Views: 2758
Could you please evaluate more about your request? There is many way to interface a PIC or more generally spoken a microcontroller with a PC, here is some example:
- SERIAL (RS232 or RS422/rs485)
Microcontrollers :: 09-16-2008 12:42 :: TekUT :: Replies: 2 :: Views: 992
I am playing with serial port under windows 2k trying to implement modbus master working over rs485 in halfduplex mode . 232-485 covnerters transmit direction is controlled via RTS line (similar to described in Serial port complete).
My problem is - i can not properly detect end of transmission (when last character has been transmitted from com po
PC Programming and Interfacing :: 08-03-2006 05:23 :: artem :: Replies: 1 :: Views: 1437
10 week course using C covering multiple issues from rs232 rs485 CAN adc ...
hope you enjoy
Embedded Systems and Real-Time OS :: 10-29-2004 12:16 :: ZeleC :: Replies: 6 :: Views: 2935
I want to write a program, running under PC. linux (redhat).
to use PC.'s serial port work as rs485, use DTR to control direction.
(use 75176 or MAX485)
Could anyone show me the sample?
Should I need to modify kernel source's serial port driver?
PC Programming and Interfacing :: 12-13-2004 06:52 :: ZeRoN :: Replies: 2 :: Views: 2998