WM_Init

C Specification

#include <nitro/wm.h>

WMErrCode WM_Init(
void*           wmSysBuf ,
u16             dmaNo
);

Arguments

wmSysBuf A pointer to the buffer allocated by the calling source. The buffer must have a size of WM_SYSTEM_BUF_SIZE and be 32-byte aligned.
dmaNo The DMA number that the WM library will use. Use a valid DMA number (0-3).

Return Values

Returns the results of the WMErrCode enumerated type process.

Description

Initializes the WM library Unlike WM_Initialize , this synchronous function only initializes the WM library on the ARM9 side. The WM will be initialized to the READY state. In order to communicate you must also use WM_Enable and WM_PowerOn to enable the WM hardware. Do not free the wmSysBuf until either WM_Finish or WM_End completes successfully. This function is automatically called at the beginning of the WM_Initialize function.

See Also

WM_Enable, WM_PowerOn, WM_PowerOff, WM_Disable, WM_Finish, WM_Initialize, WM_End

Revision History

03/02/2005 Added description of allowable range for dmaNo argument
10/22/2004 Changed return value type
09/11/2004 Initial version