| ??? 01/20/08 01:06 Read: times |
#149753 - "slightly less than mass" Responding to: ???'s previous message |
"slightly less than mass" is what I had in mind.
I was thinking of something like an 89LPC903. 3 of the 8 pins are used to program the thing. That would seem to mean that 3 jumpers or something like that would need to be put on the board. That does not sound very convenient. If a larger chip was used and those programming pins were dedicated to an SPI interface to other chips during normal operation, test points might be all you need. But I was thinking about the programming pins being connected to hardware that would interfere with ICP. |
| Topic | Author | Date |
| What micro would you use? | 01/01/70 00:00 | |
| LPC9xx | 01/01/70 00:00 | |
| that would be a good option... | 01/01/70 00:00 | |
| how do they use them then? | 01/01/70 00:00 | |
| I don't use them... | 01/01/70 00:00 | |
| I was just asking if someone would use that | 01/01/70 00:00 | |
| We are talking about devboards, do we? | 01/01/70 00:00 | |
| "slightly less than mass" | 01/01/70 00:00 | |
| UART-ISP is not an option... | 01/01/70 00:00 | |
| yes I know | 01/01/70 00:00 | |
| Re: How do they use them? | 01/01/70 00:00 | |
| no one | 01/01/70 00:00 | |
| Perfect??? | 01/01/70 00:00 | |
| You missed one... | 01/01/70 00:00 | |
| Oh goodness, yes! That's very important ... | 01/01/70 00:00 | |
| Depends upon the required functionality .. | 01/01/70 00:00 | |
| Cygnal TQFP package , I would avoide any | 01/01/70 00:00 | |
| why? | 01/01/70 00:00 | |
| You can | 01/01/70 00:00 | |
| SILabs (nee Cygnal) a warning | 01/01/70 00:00 | |
Erik even they dont hate calling their forum | 01/01/70 00:00 | |
| only a few digital I/O | 01/01/70 00:00 | |
| ... or the VRS for that matter, but ... | 01/01/70 00:00 |