| ??? 11/08/09 10:48 Read: times |
#170566 - ISP does not mean it's public Responding to: ???'s previous message |
Andy Neil said:
I think chip makers nowadays tend to release the full programming specs only to qualified bona fide programmer manufacturers.
For those that want to program chips themselves, there's plenty with ISP. Unfortunately, "ISP" does not mean "open protocol". For example the P89LPC9xx ICP protocol (their SPI-ISP, which is the only option for the lower-end LPC9xx's) is not published (although I see this as a very stupid decision from Philips/NXP). I was recently trying to acquire the ISP protocol for Winbond/Nuvoton's most recent ISP capable chips (much of whose are in direct competition with the LPC9xx's, and also including a '4051 compatible one), no avail. Andy Neil said:
Rick Cyin said:
if that is case I will stick to AT89c4051 for few bucks. Yes, I think that's the best idea! An alternative is to find somebody in the area with a programmer supporting this chip, or ask the manufacturer of your programmer for a support (if it is not a homebrew one). I agree that that might easily be not worth the hassle for a couple of chips, on the other hand I expect we will see more of these far-eastern chips in the near future. JW |
| Topic | Author | Date |
| reprogramming SM894051 | 01/01/70 00:00 | |
| Link? | 01/01/70 00:00 | |
| reprogramming SM894051 | 01/01/70 00:00 | |
| if you can't find the manufacturers website ... | 01/01/70 00:00 | |
| Oh, come on! | 01/01/70 00:00 | |
| The Datasheet says | 01/01/70 00:00 | |
| I think so too but it doesn't | 01/01/70 00:00 | |
| Unfortunately | 01/01/70 00:00 | |
| ISP does not mean it's public | 01/01/70 00:00 | |
| HUH? | 01/01/70 00:00 | |
| why splitting hair? | 01/01/70 00:00 | |
| IPC for the LPC900 doc | 01/01/70 00:00 | |
| and this is idiotic | 01/01/70 00:00 | |
| Majority requests probably not affected by datasheet quality | 01/01/70 00:00 | |
| i beg to differ | 01/01/70 00:00 | |
| Maybe no PC? | 01/01/70 00:00 | |
| writing to flash ... | 01/01/70 00:00 | |
| empty chip too? | 01/01/70 00:00 | |
| ICP is not (officially) documented | 01/01/70 00:00 | |
ICP and support | 01/01/70 00:00 |