This is a helper function to allow easy access to external memory/chip-selects, when using Trizeps6 with onboard WLAN (when the WLAN-chip is configured to use D[15..8]).
void* DFIOMapSpace( unsigned int physbase, unsigned int length, unsigned int* csbase );
Parameters
physbase
The physical address of the external memory-space to map.
ChipSelect | Physical start-address |
|---|---|
CS1 | 0x84000000 |
CS3 | 0x88000000 |
CS4 | 0x8C000000 |
length
Length of memory-space to map.
csbase
Pointer to an unsigned int, which will receive a value needed by DFIORead and DFIOWrite.
Return Values
The return-value is virtual address of the mapped address-space.
If the function fails, the return value is NULL.
Remarks
You should not use the mapped address-space directly. Instead use DFIOWrite and DFIORead.
Requirements
OS Versions: Windows Embedded CE 6 and later.
Header: drvlib_app.h.
Link Library: drvlib_app.lib.