MAX485, transmit and receive control
Hi,
MAX485 is a half-duplex chip, that means this chip can't transmit and receive at the same time. I convert UART from PIC into RS485.
The problem is, how to control the transmit and receive? Pin RE and DE is connected together into one PIC port.
![[IMG]](proxy.php?image=http%3A%2F%2Fimg201.imageshack.us%2Fimg201%2F8494%2Fmax485.jpg&hash=83534ac7f89ad40f5862a04b48155742)
MAX485 is a half-duplex chip, that means this chip can't transmit and receive at the same time. I convert UART from PIC into RS485.
The problem is, how to control the transmit and receive? Pin RE and DE is connected together into one PIC port.
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