Zilog EZ80F916 - Manual (Page 124)

UM014423-0607 Using the Integrated Development Environment
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
104
The minimum that the system clock frequency can reliably support is 5 MHz.
Running the system clock at a lower frequency might result in unreliable
operation.
If a reliable connection cannot be established and the system clock frequency is
within an overlapping area, you can override the default choice by selecting the
Use Alternate ZDI Clock Frequency check box. Selecting the alternate system
clock table changes the ZDI clock frequency used by ZDS. For instance, if the
system clock is 20 MHz, the 4-MHz ZDI clock rate might prove to be more
reliable then the 8-MHz rate.
ZDS assumes that the system clock change occurs somewhere after reset and
before the
main()
routine.
– Click OK.
•
If you select USBSmartCable and click Setup in the Debug Tool area, the Setup USB
Communication dialog box is displayed.
Figure 70. Setup USB Communication Dialog Box
– Use the Serial Number drop-down list box to select the appropriate serial number.
– Select the Use Alternate ZDI Clock Frequency check box if you want to override
the default ZDI clock frequency. The alternate ZDI clock frequency should only
be used if a reliable connection cannot be established with the default ZDI clock
frequency. The default ZDI clock frequency will be used if an alternate ZDI clock
frequency is not available for the given system clock frequency.
– Click OK.
•
If you select ZPAKII and click Setup in the Debug Tool area, the Setup TCP/IP
Communication dialog box is displayed.