User`s manual

4-2 Suite56 DSP Tools User’s Manual Motorola
Managing Projects with Multiple Devices
In contrast, if all the digital signal processors in your project have a JTAG interface, then
you can connect up to 24 such devices through a single command converter for debugging
through a Suite56 ADS debugger. From the point of view of the debugger, the digital
signal processor nearest TDO (test data output signal) on the JTAG interface of the
command converter is numbered device 0, and the digital signal processor nearest TDI
(test data input signal) on the JTAG interface of the command converter is the highest
numbered device, as in Figure 4-2. Connect each digital signal processor through its own
TDO to the TDI of its successor.
Figure 4-2. Connecting Devices through Their JTAG Interfaces for Debugging
4.1.2 Simulating Multiple Devices
In a Suite56 simulator, there are facilities to support your code development aimed at
multiple digital signal processors. The
sim56300, for example, simulates all the
individual digital signal processors in the DSP56300 family. It can simulate as many as 32
of them at once.
To set up a simulation of multiple devices, in the
graphic user interface, from the Modify menu, choose
Device, and then select Configure. A dialogue box
appears for you to indicate the characteristics of one
digital signal processor. Assign it a device number in
the Device pane of the dialogue box. Indicate its type
(e.g., 56301) in the Device Type pane, and configure it
On. Then click OK. Repeat this procedure for each of
your multiple devices.
In the text-based interface, use the
device command with a device number and device
type as parameters, followed by the option
ON.
37-pin
host-bus
interface card
host computer
command
interface
cable
converter
TDI
TDO
TDI TDO
DSP(n-1)
TDO TDI
DSP0
TDI TDO
DSP(n-2)
TDO TDI
DSP1