| ??? 01/27/09 09:21 Read: times |
#161750 - File system? Responding to: ???'s previous message |
One of the reasons people often think of USB "pen drives" like this is that they are easy to just plug into a PC. What they forget (or don't realise) is that there is an awful lot of software hidden away in the PC in order to make it so.
So, to make a USB device just plug into your embedded system, you would also need a large amount of software to make it appear "easy". As the old saying goes, it takes a great deal of effort to make something appear "effortless" Of course, plugging-in the USB device is just the first step: if you want any PC to be able to "just read" the data, you will also have to implement a File System that the PC understands. I beleive that the Vinculum chip mentioned by Erik provides both the USB Host interface and a file system? Christoph Franck said:
Such as SD/MMC cards or even CompactFlash cards. Their protocols don't require dedicated hardware. True - but, again, if you want any PC to be able to "just read" the data, you will still require a suitable File System. Otherwise, you will also have to write a custom PC application to retrieve the data. |
| Topic | Author | Date |
| pen drive interfacing with 8051 | 01/01/70 00:00 | |
| you can't | 01/01/70 00:00 | |
| Use something that doesn't require USB. | 01/01/70 00:00 | |
| File system? | 01/01/70 00:00 | |
| Any PC, or any operating system? | 01/01/70 00:00 | |
| Fair point | 01/01/70 00:00 | |
| Online access | 01/01/70 00:00 | |
| Another point. | 01/01/70 00:00 | |
| Good point. | 01/01/70 00:00 | |
| Ready-made utilities for raw data? | 01/01/70 00:00 | |
| Review your requirements | 01/01/70 00:00 | |
| USBwiz is another alternative | 01/01/70 00:00 | |
| or uALFAT | 01/01/70 00:00 | |
| AT43USB380 - though not an 8051 | 01/01/70 00:00 | |
| non-8051 options | 01/01/70 00:00 | |
| printer? | 01/01/70 00:00 | |
Sorry, wrong thread | 01/01/70 00:00 | |
| online mass storage in 8051 | 01/01/70 00:00 | |
| Back to basics | 01/01/70 00:00 | |
| how much mass do you want to store? | 01/01/70 00:00 | |
| try to reformulate your problem | 01/01/70 00:00 | |
| Why a pen drive? | 01/01/70 00:00 | |
| I knew you'd say that! | 01/01/70 00:00 | |
| There is always SD Cards | 01/01/70 00:00 | |
| Already mentioned | 01/01/70 00:00 |