Cirrus Logic CK4970x4 - Manual (Page 43)

4-9 Copyright 2012 Cirrus Logic, Inc. DS898CK7
Programming the DSP on the CK49x Evaluation Board
CK49x User’s Manual
4.5 Programming the On-board Serial Flash
The CK49x is populated with 4 Mbits of serial Flash that can be used to store custom DSP firmware or
run-time firmware configuration options. In order to emulate a system that boots the DSP from Flash, the
serial Flash can be programmed in system with the desired DSP firmware. The host (the PC in this case)
can be used to perform a master boot to boot the CK49x.
A special .uld file is loaded into the CK49x which provides the programming interface to the system host.
Programming then becomes a sequence of messages to the CK49x. See Chapter 7 of the CS4953x4/
CS4970x4 System Designer’s Guide
for instructions on to use the DSP Condenser application to program
the serial Flash device located on the DC4953x daughter card.