Sundance SMT6035 v.2.2 - Manual (Page 16)

Version 2.2 Page 16 of 39 SMT6035 User Manual
11 Functional description
Once the interface to the hardware has been obtained by calling
SmtOpenBoard(), it allows you to access the following features available on
various Sundance carrier boards.
Functionality SMT320-327 SMT300-310-310Q
Comport access Supported Supported
Downloading files Supported Supported
Mailboxes Not supported Supported
High speed channel Not supported Supported
Board state Supported Supported
Read and write carrier board registers Supported Supported
PCI bridge chip register access Supported Supported
DSP Interrupt Supported Supported
Table 2 - Supported functionality for Sundance carrier boards
12 Host comport
The simplest and most general I/O mechanism that can be used to communicate
between the host and the Root DSP is the host comport.
It is a sequential, bi-directional link that gives typical transfer speeds of up to
2MB/s. It is also used for loading programs into the DSP. Please refer to the user
manual of your TIM for more information about the supported file formats.
Blocking functions are used to transfer data over this link: they do not return until
the transfer has completed. To force completion of pending read or write
operations, throw an exception of type SMTExc using CpCancel().
12.1 CpRead
Reads data from the comport.
Prototype:
void IFHw::CpRead( void *pBuf, UINT nBytes )
Parameters:
pBuf Pointer to a buffer receiving the data read from the
comport.
User Manual - Version 2.2, 04/01/07; © Sundance Italia S.R.L.