RS485/422 to UART , TTL


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    Default Re: RS485/422 to UART , TTL

    Yes, meant Wiz108 and 107, I don't have a 485 device for testing. But just thinking, differential input only means A>B by 2volts and B>A equals the 1's and 0's, so may be able to use voltage divider resisters on A or B and TX then on other pin for transmit to 485, and to recieve from 485 is just one of the differential outputs and gnd.
    I am now using hardware TX and RX from USART and interrupt for both in my program to send and recieve data. Since Debug isn't for interrupts, that would change the whole setup.
    The 107 generally works OK but it would hap-hazardly(?) erase its flash IP settings making it inoperable until reprogramming the flash, but it seems better since loading newer version of operating program from WIZ.
    I also saw the $30 802.11 WIZ module a few days ago and would like to try that too.

    Don
    Last edited by amgen; - 22nd September 2011 at 03:24.

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