Phytec miniMODUL-537, Руководство по оборудованию

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miniMODUL-537
38
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PHYTEC Meßtechnik GmbH 2001 L-006e_2
6.5.1 Connections of the RS-485-Interface Pre-Configured
The connections of the serial interface SERIAL1 are prepared for the
utilization as RS-485-interface. This bi-directional interface requires
besides the two symmetric data-lines, control signals, which are
already connected for the miniMODUL-537 with certain controller
port pins. In addition to the controller connections TxD1 (P6.2) and
RxD1 (P6.1) also port bits P5.1 and P5.0 are connected. For other
utilization of the port bits the connections at the edge of the circuit
board have to be separated. The link with P3.2 (/INT0) is achieved via
the jumper JP6.
B29 VCC485 with B01 (VCC)
B30 (D) with B57 (TxD1, Port 6.2)
B32 (R) with B52 (RxD1, Port 6.1)
B34 (/R) with A17 (INT0, Port 3.2) by jumper JP6
B35 (DE) with B51 (Port 5.1)
B36 (/RE) with B52 (Port 5.0)
6.5.2 Connections of the RS-232-Interface Pre-Configured
The interface SERIAL0 is prepared as interface of the RS-232
standard with the corresponding connections. For this purpose the
transmission and reception driver R1 and T1 of the driver chip U4 are
used for RxD0 and TxD0.
The other driver and reception connections are vacant, since the
standard software from PHYTEC doesn’t use hardware handshaking.
A44 (R10) with A15 (Port 3.0, RxD)
A41 (T1I) with A16 (Port 3.1, TxD)