| ??? 08/15/05 17:19 Read: times |
#99459 - if you have 2 usb ports, why not supply Responding to: ???'s previous message |
If you have 2 usb ports, why not supply the converter from the othet USb port? An USB port is supposed to supply 500mA at 5V.
Beware of the USB-232 converters, several posts have appeared in various places "brand x does not work with Flash magic, brand y does" Now a days laptops dont have serial ports I will be using a USB to Serial Converter for programming. There is a dead simple way to isolate then - unplug the laptop from the mains during programming :) Erik |
| Topic | Author | Date |
| RS232 Isolation for Flash Magic. | 01/01/70 00:00 | |
| apples and oranges | 01/01/70 00:00 | |
| Re: Apples & Oranges. | 01/01/70 00:00 | |
| This is the first time I have seen Asim | 01/01/70 00:00 | |
| Re: Link | 01/01/70 00:00 | |
| H11l1 | 01/01/70 00:00 | |
| The problem with the 2 links you show is | 01/01/70 00:00 | |
| USB to power the max232 | 01/01/70 00:00 | |
| Re: The problem with the 2 links. | 01/01/70 00:00 | |
| if you have 2 usb ports, why not supply | 01/01/70 00:00 | |
| Re: 2 Ports. | 01/01/70 00:00 | |
| what difference ? | 01/01/70 00:00 | |
| Earth??? | 01/01/70 00:00 | |
| my One Compaqw Presario 2207AL | 01/01/70 00:00 | |
| Look More | 01/01/70 00:00 | |
| re:optoisolated RS-232 | 01/01/70 00:00 | |
| Then But One | 01/01/70 00:00 | |
| Got it working. | 01/01/70 00:00 | |
| Great!!! | 01/01/70 00:00 | |
Circuit Schematic. | 01/01/70 00:00 |