| ??? 03/30/05 14:32 Modified: 03/30/05 14:36 Read: times |
#90685 - Missing Things. Responding to: ???'s previous message |
Dear David,
A very quick look at schematic shows following missing things. 1. Burden capacitor for crystal use 33pF burden caps. 2. There is not reset / brown out supervisor. 3. /EA floating. Connect it to +5V if you wish to use internal ROM for program. Regards, Prahlad Purohit |
| Topic | Author | Date |
| 8x51 simple board | 01/01/70 00:00 | |
| Missing Things. | 01/01/70 00:00 | |
| how can we tell | 01/01/70 00:00 | |
| Other comments | 01/01/70 00:00 | |
| No Gnd | 01/01/70 00:00 | |
i'm sorry | 01/01/70 00:00 |