
Demonstrations for how TIMH trigger ADC.

1. TIMH0 will output PWM waveform in PIN PC5 and PC8.

2. ADC channel_2(PD9) will be used.

3. The adc trigger signal will pass though the EBUS and make ADC start a conversion. Then print the result.

4. Timing of adc conversion configed by 'trgiA'. Please refer to 'Line 143!! 

5. PC0 toggle by EBUS, it marks the timing when ADC start a conversion.

6. PC1 toggle in TIMH0 interrupt.
   