UM-GP-006
GreenPAK Pro Development Platform
User Manual
Revision 1.1
15-Sep-2021
CFR0012
10 of 33
© 2021 Dialog Semiconductor
Connector is to connect an external signal/power source safely to the GreenPAK Pro Development
Board. In addition, each Expansion Connector line has ESD protection.
Figure 5: Expansion Connector Control in GreenPAK Designer
The Expansion Connector is enabled only in Emulation mode or Test mode. To enter either of these
two modes the target GreenPAK device must be inside the socket. When the Test mode button is
pressed, the software will first read the chip to verify if it was inserted correctly, and then configure the
GreenPAK Pro Development Board as it was set in Emulation mode. After the Emulation button is
pressed, the software will automatically perform the following steps:
▪
Check chip presence;
▪
Open all expansion port switches (allowing external signals/loads to be left connected to Expansion
Connector);
▪
Load target configuration into the target GreenPAK device using internal power;
▪
Configure Development Board as it was selected in Emulation Tool window.
Note that the GreenPAK device has internal OTP memory which is normally loaded into RAM registers
at initialization time. “Emulation mode” will bypass this load and write the updated version of the project
directly into the RAM register inside the GreenPAK chip many times, but after power loss all internal
data will be lost. Also, when the GreenPAK chip is already programmed
– the User can use Emulation
mode to load another project and test it on the emulation tool during the Emulation mode. In that case
emulation data will be cleared. The “Emulation mode” is not necessary for checking programmed parts:
in this case the “Test mode” will supply power to the device, which will perform the standard load of
configuration data from OTP to RAM.
The difference between the “Emulation” and the “Test mode” is
that in
the “Test mode” the process of loading configuration memory is skipped, and after the chip
power, the OTP memory loads into RAM registers.
The Expansion Connector has the following type of connections:
1. V
DD
2. GND
3. Data connections
The V
DD
connection allows the User to both use internal power supply to power the external circuit,
and use external power source as the on-board chip power. This selection to use either internal or
external power is made in the Emulator Controls window.
The GND connection is connected directly to the GreenPAK Pro Development Board ground and
cannot be controlled or switched.
Data connections are the easiest way to connect external signals to the GreenPAK chip. They are
software controlled switches that are controlled in the Emulator Controls window.
4.2.5
Generators
Three types of generator can be connected to a defined TP: Logic generator, Signal generator, or I
2
C
generator. The user can add generator to highlighted green pins with the help of Add button or use a
context menu of the TP.
