Compact FlashCard Driver/de
== (**COPIED FROM ENGLISH PAGE**) ==The compact flash card driver library is written by Josef Franz Vögel. He can be contacted via the BASCOM user list.
Josef has put a lot of effort in writing and especially testing the routines.
Josef nor MCS Electronics can be held responsible for any damage or data loss of your CF-cards.
Compact flash cards are very small cards that are compatible with IDE drives. They work at 3.3V or 5V and have a huge storage capacity.
The Flash Card Driver provides the functions to access a Compact Flash Card.
At the moment there are six functions:
DriveCheck, DriveReset , DriveInit , DriveGetIdentity , DriveWriteSector , DriveReadSector
The Driver can be used to access the Card directly and to read and write each sector of the card or the driver can be used in combination with a file-system with basic drive access functions.
Because the file system is separated from the driver you can write your own driver.
This way you could use the file system with a serial EEPROM for example.
For a file system at least the functions for reading (DriveReadSector / _DriveReadSector) and writing (DriveWriteSector / _DriveWriteSector) must be provided. The preceding under slash _ is the label of the according asm-routine. The other functions can, if possible implemented as a NOP – Function, which only returns a No-Error (0) or a Not Supported (224) Code, depending, what makes more sense.
For writing your own Driver to the AVR-DOS File system, check the ASM-part of the functions-description.
Error Codes:
|
Code |
Compiler – Alias |
Remark |
|
0 |
CpErrDriveNoError |
No Error |
|
224 |
cpErrDriveFunctionNotSupported |
This driver does not supports this function |
|
225 |
cpErrDriveNotPresent |
No Drive is attached |
|
226 |
cpErrDriveTimeOut |
During Reading or writing a time out occurred |
|
227 |
cpErrDriveWriteError |
Error during writing |
|
228 |
cpErrDriveReadError |
Error during reading |
At the MCS Web AN section you can find the application note 123.
More info about Compact Flash you can find at :
http://www.sandisk.com/download/Product%20Manuals/cf_r7.pdf
A typical connection to the micro is shown below.
| Languages | English • Deutsch |
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