| Error Message | Cause | Solution | |---------------|-------|----------| | Unknown model 'HT12E' | Library not installed or missing .IDX | Reinstall both .LIB and .IDX. Restart Proteus. | | Pin 'OSC2' not found | Corrupted or low-quality library | Find a verified extra quality version (see Step 1). | | VT pin never goes high | Address mismatch or missing oscillator resistor | Check A0-A7 matches on both ICs. Add 51kΩ on HT12D. | | Simulation runs too slow | Missing oscillator components | Never leave OSC1/OSC2 floating. Use exact resistor values: 1.1MΩ (HT12E), 51kΩ (HT12D). | | Library conflict with other ICs | Duplicate device names | Use Library Manager to remove other HT12E entries. |
These library files will allow you to simulate and design circuits using these ICs in Proteus.
Sarah initially connects the TE (Transmit Enable) pin to High. Simulation fail. The HT12E only transmits when TE is low.
Which of these would you like next?