Electrical Engineering › Section R · Digital concepts, number systems, and codes › Topic R.3
Programmable and fixed-function logic, instruments, and troubleshooting
Logic functions reach a circuit board either as fixed-function chips or as programmable devices configured by the designer. This topic surveys both, the packages they come in, the instruments used to test digital circuits, and a systematic way to find faults.
In this topic
- Fixed-function logic
- Programmable logic: SPLD, CPLD and FPGA
- From design to programmed chip
- Packages and pin numbering
- Worked example: probing a 14-pin DIP
- The oscilloscope
- Digital scope specifications
- Worked example: reading a scope
- Other bench instruments
- Troubleshooting a digital system
- Common mistakes to avoid
- Key takeaways
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