| ??? 05/18/08 21:07 Read: times |
#154867 - comments, answers Responding to: ???'s previous message |
For exactly that reason, I substituted Intel, AMD, Signetics, Philips MCU's ..... P8032 MCU ... which I believe is a 'dynamic version' which DEFINITELY will show 'something funny' when going into reset. Please forget the antiques and stay with modern parts.
Which NXP processor would you recommend? e.g. the P89V51Rx2 which is UART ISP. Also it is a 6 clocker which brings it close to your DS part. I'm interested in your comment once made about using a 10K-ohm resistor betwen two sources of RESET. I don't see how this will help, since there's at least one pulldownresistor, namely that within the MCU, and that's going to prevent the RESET signal from going high enough. Can you shed a bit more light on that? I have that worked out somewhere at work, but am currently working from home. Erik |
| Topic | Author | Date |
| Problem with NVRAM - DS12887 | 01/01/70 00:00 | |
| Background | 01/01/70 00:00 | |
| So where's the schematic, then? | 01/01/70 00:00 | |
| No schematic | 01/01/70 00:00 | |
| till you show your schematic no answers | 01/01/70 00:00 | |
| Which MCU type? | 01/01/70 00:00 | |
| Which MCU type? | 01/01/70 00:00 | |
| That base has been covered ... sort-of ... | 01/01/70 00:00 | |
| comments, answers | 01/01/70 00:00 | |
| In this case, it is the antiques ... | 01/01/70 00:00 | |
| you forgot the 'C' in your first post | 01/01/70 00:00 | |
Yes I did ... sorry about that .... | 01/01/70 00:00 | |
| Where did you buy it from? | 01/01/70 00:00 | |
| What??? | 01/01/70 00:00 |