TEXT 67

cable between interface

Guest on 26th May 2022 02:07:58 AM

* Use a shielded cable between interface <=> TI85 and connect the shield
to the ground.
* The LM3302 can be replaced by a LM339N (the LM339 is used in the real
link85-interface)
Numbers Possible errors:
3,1,2,0 <= Correct, the interface works
0,0,0,0 <= Wrong Com-port or no powersupply to the LM3302/LM339
3,2,1,0 <= RTS/DTR or CTS/DSR connections have been exchanged
If you write "TESTLINK 1 X" you must press a key between every number,
but this makes it possible to measure the voltage on the TI85 connection
Number IO1-GND IO2-GND
1 (3) > 4 V > 4 V
2 (1) > 4 V < 0,5 V | If the voltage on these two lines are reversed
3 (2) < 0,5 V > 4 V | exchange IO1- and IO2-connections on the plug
4 (0) < 0,5 V < 0,5 V

Raw Paste

* Use a shielded cable between interface <=> TI85 and connect the shield to the ground. * The LM3302 can be replaced by a LM339N (the LM339 is used in the real link85-interface) Numbers Possible errors: 3,1,2,0 <= Correct, the interface works 0,0,0,0 <= Wrong Com-port or no powersupply to the LM3302/LM339 3,2,1,0 <= RTS/DTR or CTS/DSR connections have been exchanged If you write "TESTLINK 1 X" you must press a key between every number, but this makes it possible to measure the voltage on the TI85 connection Number IO1-GND IO2-GND 1 (3) > 4 V > 4 V 2 (1) > 4 V < 0,5 V | If the voltage on these two lines are reversed 3 (2) < 0,5 V > 4 V | exchange IO1- and IO2-connections on the plug 4 (0) < 0,5 V < 0,5 V

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