Silego Technology Inc.
Page 8 of 41
08/15/17
GreenPAK Advanced
Development Platform
Expansion connector is enabled only in Emulation mode or Test mode. To enter either of these two modes the GreenPAK chip
must be in the socket. When the Test mode button is pressed the software will first read the chip to verify if it was inserted and
then configure the GreenPAK Advanced Development Platform as set in Emulation Tool window. When the Test mode button is
gray then the Development Platform is in Default state and all expansion port switches are open (disconnected). After Emulation
button is pressed, the software will automatically perform the following steps:
• check chip presence
• open all expansion port switches (external signals/loads can be left connected to expansion port)
• use internal power and load configuration to the chip
• only for case #3: adjust internal power source to external power level
→
close external power switch
→
open internal
power switch
• configure Development Platform as set in Emulation Tool window
Parasitic effects should be also considered while using the GreenPAK Advanced Development Platform in-circuit with analog
signals. The entire Development Platform circuitry along with the wiring have a significant amount of mutual capacitance and
inductance. The detachable socket can also be used for the in-circuit development with programmed chips (the Development
Platform and socket connectors have the same pinout).
Figure 5. Socket and Expansion Connector Schematic
