Contec N Series, Руководство пользователя

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4. Function
32
COM-4PDHN-USB
Setting the Baud Rate
The output baud rate can be set by setting the software.
Baud rate: 300 - 921,600 bps
However, when the result contains a fractional part in the calculation of the division register listed below,
since the division register value is rounded down to the nearest integer,a setting error of the baud rate
occurs.
48000000 ÷Desired baud rate = Division register setting value
Ex.) 48000000 ÷ 9600bps = 5000 (As the result is an integer, a setup error does not occur.)
48000000 ÷ 115200bps = 416.66.... (As the result contains a fractional part, a setup error occurs.)
Refer to the following baud rate setting examples.
Table 4.1.
Baud Rate Generator Programming Table
Output baud rate [bps]
Setup error (%)
300
---
600
---
1200
---
1800
0.0025
2000
---
2400
---
3600
0.0025
4800
---
7200
0.0100
9600
---
14400
0.0100
19200
---
28800
0.0400
38400
---
57600
0.0400
76800
---
115200
0.1603
153600
0.1603
230400
0.1603
460800
0.1603
921600 0.1603