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gca145-en 2018/05/20 17:27 gca145-en 2018/05/20 18:04 current
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When write line goes high, the processor will make ´pos match´ high, shut off both relays,  reads PortA and starts running to the position given.\\ When write line goes high, the processor will make ´pos match´ high, shut off both relays,  reads PortA and starts running to the position given.\\
-This write line respond can be diabled in version N_V3.4 or higher by setting menue 1.6  to 0. It wwill make GCA145 respiond to any change in command byte vie J5.\\+This write line respond can be disabled in version N_V3.4 or higher by setting menue 1.6  to 0. It will make GCA145 respond to any change in command byte via J5.\\
After the postion has been reached, ´Pos match´will be forced low, to signal the LocoNet, that TT/FY is stable in position.\\ After the postion has been reached, ´Pos match´will be forced low, to signal the LocoNet, that TT/FY is stable in position.\\
Also depending on the position, the correct relay will be switched on, to give power to the rail on the bridge.\\ Also depending on the position, the correct relay will be switched on, to give power to the rail on the bridge.\\
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It is not always necessary to use all 6 command bits.\\ It is not always necessary to use all 6 command bits.\\
-If -for example- you only have 11 positions in use, bits 0-3 (pins 3..6 of J5) will be OK.\\+If -for example- there are only 11 positions in use, bits 0-3 (pins 3..6 of J5) will be OK.\\
But in that case make sure that unused bits 5 and 6 (pins 7 & 8 of J5) are connected to ground (J5 pin2), NOT left open !!!\\ But in that case make sure that unused bits 5 and 6 (pins 7 & 8 of J5) are connected to ground (J5 pin2), NOT left open !!!\\
The best way is to use a 1 KOhm resistor from each unused pin to ground.\\ The best way is to use a 1 KOhm resistor from each unused pin to ground.\\

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