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UART1 Header Connection

posted in Uncategorized
Friday, January 20 2012, 03:56 PM
carhscom
carhscom
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Hello, I would like to use the J601 connector on the Expansion Board (described on page 26 in the HW User Manual for this Board). I tested succesfull communication between UART1 and UART3 on J960 connector on the IGEP board. So I wired my GPS Receiver to J601 and tried to catch the output with cat /dev/ttyS0, but there is no data available. The GPS is working and transmitting data on the TX Pin (also tried to switch TX and RX). I had a look at the schematics of the Expansion Board. I think UART1_TXD_3V3 and UART1_RXD_3V3 are going to nowhere :shock: Has anybody used this connector before? Best Regards Richard
Responses (1)
  • Accepted Answer

    mcaro
    mcaro
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    Tuesday, January 24 2012, 01:11 PM - #permalink
    0
    Hi Richard, You should disable the RS485, please pass this parameter to the kernel command line: board.ei485=no Manel
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