William At MyBlueRoom
New Member
I've used the second method (without 10K resistor) in my schematics and as much as it works I wonder why no pullup or pulldown resistor is used when RE pin2 is pulled high. The datasheets indicate this floats the RO pin1 and I wonder how a PIC UARTs RX pin is affected?
I could simply ground the RE pin as in the top MAX483 (and maybe that's the right way)
Comments?
I could simply ground the RE pin as in the top MAX483 (and maybe that's the right way)
Comments?