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Generic controller not working #20

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eduardri opened this issue Jun 22, 2022 · 3 comments
Open

Generic controller not working #20

eduardri opened this issue Jun 22, 2022 · 3 comments
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documentation Improvements or additions to documentation

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@eduardri
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I have 2 different kind generic controllers (made in china), one of them work perfect, but the other kind don't work with PSXNwelib.
I try withe library PS2X_lib and the control work, switch to PsxNewLib and stop to work, the leds on the receiver blink and looks like no binding with the controller

DUMP_COMMS:
<-- 01 42 00
--> FF FF FF
<-- 01 42 00
--> FF FF FF
<-- 01 42 00
--> FF FF FF
<-- 01 42 00
--> FF FF FF
<-- 01 42 00
--> FF FF FF
<-- 01 42 00
--> FF FF FF

could you help with this issue?

@SukkoPera
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Hard to say without more info: What are you using to do the level shifting? What pullups are you using? How are you generating the 3.3V?

@eduardri
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I'm using arduino nano, to supply the 3.3v direct form the borad,
arduino is connected to usb, no resistor connected to the receiver, i read about using 10k resistors but not difference.
if i Connect "brand a" is working, switch to "brand b" not working
both brands work if i change to old PS2X_lib.

what test do i need to do?

@SukkoPera
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This makes me realize I need to improve the wiring instructions.

  1. You MUST do some kind of level-shifting if you are using an Arduino working at 5V, as the controller works at 3.3V. There are various techniques for this, I usually use the bidirectional shifters based on the BSS138 MOSFET, they work well in this case.

  2. You MUST add pull-up resistors on the DAT, CMD and CLK lines. In the future one on ACK will be required too. The level-shifting technique I suggested above already includes them, but if you are using a different technique, or if you are using an Arduino board that works at 3.3V, you will need to add these pull-ups externally. They MUST be 1k.

  3. All of the above is implemented on my PsxControllerShield.

I'm sorry but I really cannot support users of this library that do not connect controllers the right way to begin with.

@SukkoPera SukkoPera added the documentation Improvements or additions to documentation label Dec 4, 2022
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