>>1. Somethings wrong with
>>1. Somethings wrong with my schematic?
I encountered 2 problems.
1. The 74LS04 is a different logic family than 74AC04. FIrst is lower power shottky, second is advanced CMOS. This may cause problems to make the crystal oscillator swing. Better use the recommended 74AC04.
2. In general all unused input pins of ICs must be tied to a defined logic level. Let them open will lead to floating inputs that works like antennas catching noise. CMOS ICs will die because of the latchup effect. In this case Pin 3,5,11,13 should be connected to GND or VCC (via Pullup resistor).
>>2. What makes the flow is stoped when i connect the SDA and SCL line?
I2C is using a simple state change protocol. It’s not a plug & play bus like USB. Connecting/disconnecting of devices in a running system will cause problems like this.
>>2. My original wiimote is korea version… is this the problem?
nope.