| ??? 05/21/11 14:23 Read: times |
#182323 - Have you really read the datasheets?? Responding to: ???'s previous message |
There are some relevant differencies between the AT89C51 and AT89S51. Have you read the lines about the double data pointers and how to initialize them??
Also, a micro that can program its code memory by itself MUST have some sort of reset controller to provide a true reset during power up, power down and brown out conditions!!! I for myself use an external reset controller, like the MAX1232 and use its internal watchdog. Look here for a schematic and example code: http://www.8052.com/forum/read/109412 Kai Klaas |
| Topic | Author | Date |
| programs not working in 89s51 | 01/01/70 00:00 | |
| Debugging time! | 01/01/70 00:00 | |
| Tip | 01/01/70 00:00 | |
| migration document | 01/01/70 00:00 | |
| Up Counter | 01/01/70 00:00 | |
| And what do you deduce from that? | 01/01/70 00:00 | |
| read or write | 01/01/70 00:00 | |
| Have you really read the datasheets?? | 01/01/70 00:00 | |
| . | 01/01/70 00:00 | |
| Don't be too hasty to blame the ICs... | 01/01/70 00:00 | |
an answer in the form of an anecdote | 01/01/70 00:00 | |
| .. | 01/01/70 00:00 | |
| Yes, you are! | 01/01/70 00:00 | |
| Tolerances | 01/01/70 00:00 | |
| It will be embarassing | 01/01/70 00:00 | |
| Thanks friends... | 01/01/70 00:00 |