NES Gamepad Controller Adapter

megaionstorm

If have bought a NES Gamepad Controller Adapter, from the parallax store.

I have sometimes the following problem, not everytime:

When i press the 'b' button it will not be showed through the terminal.
When i press the 'a' button the red led begins to flicker, the terminal program showed i have pressed the 'b' key !

CLK - P4
LATCH - P5
DATA1 - P6
DATA2 - P7
+5V - 5V
GND - GND

whicker

the Propeller chip is a 3.3V device. Input voltage should not exceed the supply voltage.

Oldbitcollector (Jeff)

Page 10 (http://dl.dropbox.com/u/7557533/ledgerlabs/Propeller%20Protoboard%20Designs%20for%20the%20Beginner.pdf) might help you a little.

Could you post your code?

OBC

megaionstorm

I have used the code on page 5.

http://www.parallax.com/Portals/0/Downloads/docs/prod/acc/32368-NesGamepadCtrlrAdapter-v1.0.pdf

On page 2 you can read: CLK - P4, LATCH - P5
On page 5 you can read: CLK - P5, LATCH - P4

I get only results when i used the first combination with the code on page 5 !

megaionstorm

What of both is the right way ?

Oldbitcollector (Jeff)

There is no "right" way.. As long as your code and interface match, you can make it work either direction.

Most NES interfacing is based on the original Propeller NES design, The Hydra.

P3 NES CLK ‘clock’
P4 NES SH/LD ‘latch’
P5 NES A OUT ‘data’
3.3v Power
Gnd Ground

OBC