| ??? 01/24/05 20:52 Read: times |
#85701 - P89C51RD2 x P89V51RD2 |
Dear Sirs,
We have been using the uC P89C51RD2. Now, we are using the new P89V51RD2 and we are having field problems. The new part are not working the same as P89C51RD2. We can't know why ! We are using the P1 port to scan a keyboard, and some time it fails to read. Are there any electrical difference between them ? We can't understand what are happening. We are still working on it. Could the new SPI functions ( P1.5; P1.6;P1.7;P1.8) introduce any bug ? The schematic are in : www.hacon.com.br/arquivos/checkbox We use this ports to read the signals. Annibal |
| Topic | Author | Date |
| P89C51RD2 x P89V51RD2 | 01/01/70 00:00 | |
| dead link | 01/01/70 00:00 | |
| differences | 01/01/70 00:00 | |
| P89C51RD2 x P89V51RD2 | 01/01/70 00:00 | |
| Latch UP condition ? | 01/01/70 00:00 | |
| Why this way? | 01/01/70 00:00 | |
| where is | 01/01/70 00:00 | |
| No latch-up | 01/01/70 00:00 | |
The other way round | 01/01/70 00:00 |