BAUD RATE MODIFIFICATION

The MicronEye's transmission speed (baud rate) is normally set at the factory to 153,000 baud for the IBM, Apple and Commodore 64 computers. A baud rate of 76,800 is used for the TRS-80 Color Computer. The RS-232 version is factory set to 9,600 baud. If you wish to change the baud rate, proceed according to the following paragraph.

Modifying the baud rate of the MicronEye requires some soldering so caution is advised. The baud rate on the MicronEye is set by soldering two wire jumpers as specified below. An end of one wire has been soldered to pad 9 (located beside IC D1) and one end of the other wire has been soldered to pad 10 (located between IC D5 and IC E5). These two connections are never changed so they do not have to be removed. However, the other end of both of the wires should be unsoldered and resoldered according to the desired baud rate.

Beside IC B5 are 8 pads. Pads 1, 4, and 8 are labeled on the board. To select one of the five standard baud rates, use the table below to rejumper for the desired baud rate.

TO SELECT THIS BAUD RATE

153,600

CONNECT THE WIRE FROM PAD 9 TO PAD 5

CONNECT THE WIRE FROM PAD 10 TO PAD 1

 

TO SELECT THIS BAUD RATE

76,800

CONNECT THE WIRE FROM PAD 9 TO PAD 6

CONNECT THE WIRE FROM PAD 10 TO PAD 2

 

TO SELECT THIS BAUD RATE

9,600

CONNECT THE WIRE FROM PAD 9 TO PAD 7

CONNECT THE WIRE FROM PAD 10 TO PAD 3

 

TO SELECT THIS BAUD RATE

4,800

CONNECT THE WIRE FROM PAD 9 TO PAD 3

CONNECT THE WIRE FROM PAD 10 TO PAD 6

 

TO SELECT THIS BAUD RATE

300

CONNECT THE WIRE FROM PAD 9 TO PAD 8

CONNECT THE WIRE FROM PAD 10 TO PAD 4

 

BAUD RATE MODIFIFICATION

Other baud rates are obtainable by soldering the wires to certain pins on IC B5. However, this practice does not make a reliable connection and is not recommended. If one of the baud rates listed below is required, use the following table to make the proper connections:

 

TO SELECT THIS BAUD RATE

38,400

CONNECT PAD 9 TO IC B5 PIN 3

CCONNECT PAD 10 TO IC B5 PIN 9

 

TO SELECT THIS BAUD RATE

19,200

CONNECT PAD 9 TO IC B5 PIN 2

CCONNECT PAD 10 TO IC B5 PIN 7

 

TO SELECT THIS BAUD RATE

2,400

CONNECT PAD 9 TO IC B5 PIN 12

CCONNECT PAD 10 TO IC B5 PIN 3

 

TO SELECT THIS BAUD RATE

1,200

CONNECT PAD 9 TO IC B5 PIN 14

CCONNECT PAD 10 TO IC B5 PIN 2

 

TO SELECT THIS BAUD RATE

600

CONNECT PAD 9 TO IC B5 PIN 15

CCONNECT PAD 10 TO IC B5 PIN 4