Ready for review
DFIOWrite
- Albinleo Velappan (Deactivated)
Owned by Albinleo Velappan (Deactivated)
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 DFIOWrite(
volatile short* addr,
unsigned int csbase,
short value
); Parameters
addr
address, within the address-range previously mapped with DFIOMapSpace.
csbase
csbase value returned by DFIOMapSpace.
value
Value to write
Return Values
none.
Sample
Write to CS3 Space with A20 set….
#define CS3BASE_PA 0x88000000
#define A20 (1<<20)
#define CUSTOM_PA (CS3BASE_PA+A20)
volatile unsigned short *CUSTOM_HW_REG16;
unsigned int csbase;
CUSTOM_HW_REG16 = (volatile unsigned short *)DFIOMapSpace(CUSTOM_PA, 0x100, &csbase);
DFIOWrite( CUSTOM_HW_REG16 , csbase, 0x1234);
Remarks
This routine can be used with all Trizeps6-modules. Even with ones without WLAN, where this function is not necessary and you can write to the address directly.
Requirements
OS Versions: Windows Embedded CE 6 and later.
Header: drvlib_app.h.
Link Library: drvlib_app.lib.