Action
Write a Sector (512 Bytes) to the (Compact Flashcard) Drive
Syntax
bErrorCode = DRIVEWRITESECTOR(wSRAMPointer, lSectorNumber)
Remarks
bErrorCode |
A Byte Variable, which is assigned with the error code of the function |
wSRAMPointer |
A Word Variable, which contains the SRAM address (pointer), from which the Sector to the Drive should be written |
lSectorNumber |
A Long Variable, which give the sector number on the drive to transfer. |
Writes a Sector (512 Bytes) from SRAM starting at the address, to which the content of the variable wSRAMPointer is pointing to the Drive to sector number lSectornumber. The functions returns 0 if no error occurred. For Error code see section Error codes.
For the meaning of wSRAMPointer see Note in DriveReadSector
See also
DriveCheck, DriveReset , DriveInit , DriveGetIdentity , DriveReadSector
ASM
Calls |
_DriveWriteSector |
|
Input |
Z: SRAM-Address of buffer *) |
X: Address of Long-variable with sectornumber |
Output |
r25: Errorcode |
C-Flag: Set on Error |
This is not the address of wSRAMPointer, it is its content, which is the starting-address of the buffer.
Partial Example
Dim bError as Byte
Dim aBuffer(512) as Byte' Hold Sector to and from CF-Card
Dim wSRAMPointer as Word' Address-Pointer for read
Dim lSectorNumber as Long' Sector Number
' give Address of first Byte of the 512 Byte Buffer to Word-Variable
wSRAMPointer =VarPtr(aBuffer(1))
' Set Sectornumber
lSectorNumber = 3
' Now Write in sector 3 from CF-Card
bError = DriveWriteSector( wSRAMPointer , lSectorNumber)