| ??? 05/04/07 12:12 Modified: 05/04/07 12:13 Read: times |
#138612 - Good question Responding to: ???'s previous message |
I opened up two different usb->serial interfaces that both use the Prolific PL2303 chip.
One had a PL2303HX chip with provision for eeprom and no crystal. The had the number scraped off and a 12MHz crystal,again with provision for eeprom. So, Steve, if you're lucky you can add an eeprom to your usb->serial units. Programming the eeprom is the next trick! As to what eeprom chip is required, I'm not sure, but at the office I have a Advantech ADAM4561 unit that has the eeprom fitted and a prolific chip (unfortunately). As an aside, the FTDI and Prolific usb->serial chips seem to be the most popular and are supported under Linux. |
| Topic | Author | Date |
| OT Modifying USB Com ports | 01/01/70 00:00 | |
| USB com ports | 01/01/70 00:00 | |
| That's the problem | 01/01/70 00:00 | |
| No serial number string from the device | 01/01/70 00:00 | |
COM Port re-assignment | 01/01/70 00:00 | |
| USB Descriptors | 01/01/70 00:00 | |
| Bill frowns on a lot of stuff | 01/01/70 00:00 | |
| More damned work. | 01/01/70 00:00 | |
| no | 01/01/70 00:00 | |
| EEprom | 01/01/70 00:00 | |
| WHICH prolific? | 01/01/70 00:00 | |
| Good question | 01/01/70 00:00 | |
| Where do you see the name? | 01/01/70 00:00 |