Certain settings on the device control
card are needed to communicate over JTAG and use the isolated UART
port. The settings also provide a correct ADC reference voltage. The
following are the settings required on revision 1.1 of the F28379D
control card.
Refer to the information sheet located inside C2000Ware at
<sdk_install_path>\c2000ware\boards\controlCARDs\TMDSCNCD28379D:
- A:SW1 on the control card must be set on both ends to ON (up)
position to enable JTAG connection to the device and the
UART connection for SFRA GUI. If this switch is OFF (down),
one cannot use the isolated JTAG built in on the control
card nor can SFRA GUI communicate to the device.
- A:J1 is the connector for the USB cable that is used to
communicate to the device from a host PC on which Code
Composer Studio (CCS) runs.
- A 3.3-V reference
is desired for the control loop tuning on this design;
therefore, set the appropriate jumpers to provide a 3.3-V
reference externally to the on-chip ADC. For version 1.3 of
the F28379D control card, this means SW3 and SW2 are moved
to the end with "." that is, to the left, which puts 3.3-V
VDDA as the reference for the ADC. Refer to the information
sheet for more information.