| ??? 09/17/14 05:07 Read: times |
#190352 - Done checking already Responding to: ???'s previous message |
1. I have probed EA pin on CRo, its +5V constantly
2. Made a program to toggle port that's it. void main { while(1) { P1 = ~P1; } } 3. Program made in keil, Option checked in keil options: for using on chip rom only. 4. One thing I don't understand on PSEn pin I saw same frequency as on ALE pin. I had checked for shrting, any coupling nearby but found none |
| Topic | Author | Date |
| PSEN outputting freq/code does not run | 01/01/70 00:00 | |
| check EA and Pgm | 01/01/70 00:00 | |
| Done checking already | 01/01/70 00:00 | |
| dollars to doughnots I bet | 01/01/70 00:00 | |
| any other reason/remedy | 01/01/70 00:00 | |
| Reset circuit | 01/01/70 00:00 | |
Have you read the datasheet? | 01/01/70 00:00 |