| ??? 01/19/08 23:36 Read: times |
#149751 - We are talking about devboards, do we? Responding to: ???'s previous message |
Gary Peek said:
Jan: But, once you do have the ICP pins "exposed", plus you have the needed tool for ICP programming, what benefit would the UART-ISP present?
None, I was just asking if someone would use that. I was also assuming a micro that needed to talk to a host computer via USB and the chips were there already. I'm trying very hard to find a good reason to use a surface mount micro, but with these programming issues, I might as well use a DIP 89C2051 in a socket like I have already been doing. Of course, for mass (or, for that matter, slightly less than mass - mass production implies device programmer which would presumably use a faster parallel programming algorithm) production of certain grade of products it does make sense. ICP via a built-in connector (which can take form of just a set of test points on the PCB) provides means of initial factory programming. ISP is then the means of field upgrade. JW |
| 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 |