3 tools for testing
1. The oscilloscope
- Shows electrical details
- Benefits: Wideband, accurate
- Disadvantages: < 4 inputs; triggering
2. The logic analyzer
- Shows thresholded data
- Benefits: Many channels, trigger on patterns
- Disadvantages: Idealized waveforms, insufficient access
3. Embedded test
- You design in built-in test features
- Benefits: Only way to test large chips
- Disadvantages: Uses chip area, incomplete scan, difficult design