Example S32K144 PDB ADC back-to-back test S32DS12

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* Detailed Description:
*
* This example shows how to use the back-to-back mode of the PDB to trigger
* sequence of ADC channels conversion. 4 PDB channel 0 pre-triggers/triggers are
* generated upon single PDB SW trigger. The first trigger is started by the PDB,
* no delay is used. Next 3 triggers start after corresponding acknowledgment is
* received from ADC0.
*
* Converted data is used to change color of the EVB led based on Trimmer position.
*
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* Test HW:         FRDM-S32K144
* MCU:             PS32K144HFVLL 0N77P
* Fsys:            default
* Debugger:        S32DS
* Target:          internal_FLASH
*
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