| ??? 04/21/05 22:02 Read: times |
#92093 - I agree Responding to: ???'s previous message |
Sasha Jevtic said:
I don't know what your application is, but it also might additionally be useful for both service and debugging purposes to be able to pop the CF card into a PC and see what it contains without any special software. Using FAT would certainly make that possible. My thoughts exactly. Really, FAT isn't too bad if all you're doing is appending data to an existing file. If you don't have to worry about random access to review the data in the device, don't worry about file deletion, etc. and are just always appending to the same file, FAT's really not that difficult. I implemented a very bare-bones system that is capable of reading the root directory in under 300 bytes, if I remember correctly. I'm sure you could append fixed data structures to a file in well under 1k. AT89S8252 is also being obsoleted by the AT89S8253 which will have 12k of flash program memory instead of 8k. So just use that extra 4k to handle your FAT file system. :) Or just use the simple approach and be done with it in an hour. Regards, Craig Steiner |
| Topic | Author | Date |
| Simple Filesystems | 01/01/70 00:00 | |
| Here is an idea... | 01/01/70 00:00 | |
| Thought about an EEPROM but... | 01/01/70 00:00 | |
| if only add data and read it all at once | 01/01/70 00:00 | |
| How big? | 01/01/70 00:00 | |
| FAT might be overkill... | 01/01/70 00:00 | |
| Another reason not to use FAT. | 01/01/70 00:00 | |
| I agree | 01/01/70 00:00 | |
| I found this too. | 01/01/70 00:00 | |
| Good! | 01/01/70 00:00 | |
| Are you sure? | 01/01/70 00:00 | |
| Hmmm | 01/01/70 00:00 | |
| few thoughts | 01/01/70 00:00 | |
| SD cards | 01/01/70 00:00 | |
| I got three | 01/01/70 00:00 | |
| if what you are saying is | 01/01/70 00:00 | |
| Hard work? | 01/01/70 00:00 | |
I agree | 01/01/70 00:00 | |
| If you decide on FAT support.... | 01/01/70 00:00 | |
| Recent Article | 01/01/70 00:00 |