cpi_read_dpr

Reads from the dual-ported RAM of the TX board specified by handle.

Prototype

#include txcpi.h

S16 cpi_read_dpr ( TX_HANDLE handle, S8 *buffer, U32 off, S16 len)

Argument

Description

handle

TX handle number.

buffer

Pointer to a location to which the data is read.

off

Offset into the dual-ported RAM from which data is to be read.

len

Number of bytes to be read.


Return values

Return value

Description

CPI_SUCCESS

DPR successfully read into the buffer.

CPI_ERROR

Call cpi_get_last_error to obtain the error code.


Details

The read starts at off in the DPR and reads len number of bytes.

All dual-ported RAM is used for messaging and therefore should not be read directly. Do not use this function for normal data transfer situations.